errors and troubleshooting
DESCRIPTION
Errors and TroubleshootingTRANSCRIPT
TROUBLE SHOOTING MANUAL FOR S88_ 2.1Mw_STV TURBINE
SCS ALARMS
INTRODUCTION: This Manual contains the procedures to troubleshoot all the alarms for S88 SCS Standard Temperature Version (STV) The error description was given as per the alarm listing in our SC Commander starting from index 0. The description was prepared based on the software version CSM88P25.m Each alarm description contains the following details
→ Index no. → Brake Program → Yaw Program → Reset Level → Set Delay
The above said Points are subjected to change with respect to the Software version as well as Temperature version of the Wind Turbine Generator Prepared by : P.Vijaya Kumar
Approved by : D.Rajesh DGM (Engg.)
Version : RD.S88.01 Date : 22 / 09 / 2006
System_OK
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM0 0 0 3 0
♦ Root Cause:
This alarm is called when there is no error in the turbine excluding warning alarms
♦ Remedial Action:
1. No remedial action required as this is the error free state of turbine and this is the desirable alarm
RS_ManualFastStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM1 3 0 3 0
♦ Root Cause:
This alarm is called when we stop the turbine by pressing STOP button twice (double click) either in visualization or in WT305
♦ Remedial Action:
1. We use this facility to work in the turbine under stopped condition if any 2. Pitch speed for the alarm is as per the Brake Program 3. Turbine will start only when we press the START button.
RS_ManualSoftStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM2 1 0 3 0
♦ Root Cause:
This alarm is called when we stop the turbine by pressing STOP button once (single click) either in visualization or in WT305
♦ Remedial Action:
1. We use this facility to work in the turbine under stopped condition if any 2. Pitch speed for the alarm is limited to minimum speed (< 1 deg/ second) 3. Turbine will start only when we press the START button.
RS_Emergency_BottomStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM3 4 4 3 0
♦ Root Cause:
This alarm is called when we Press the bottom Emergency PUSH button
♦ Remedial Action:
1. We use this facility to work in the turbine under stopped condition or under emergency condition if any
2. Safety chain will open and ACB will trip 3. Turbine will start only when we release the PUSH button
RS_Emergency_TopStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM4 4 4 3 0
♦ Root Cause:
This alarm is called when we Press any one of the top Emergency PUSH button
♦ Remedial Action:
1. We use this facility to work in the turbine under stopped condition or under emergency condition if any
2. Safety chain will open and ACB will trip 3. Turbine will start only when we release the PUSH button
RS_ErrorTest
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM5 0 0 1 0
♦ Root Cause:
Remote error test, list of alarm server sense system
♦ Remedial Action:
1. This facility is used by the programmer for the error test during program updation
SE_CFC0_Memory_Low warn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM6 0 0 3 1000
♦ Place of the problem: Problem is related to the controller
♦ Root Cause:
This alarm is called when there is a memory full in Compaq Flash (CF) card
♦ Remedial Action:
1. Manually save the data from the CF card 2. After saving the data clear the memory of CF card This error is normally occurs
manually save the due to continuous running of turbine 3. Start the turbine and be happy
RS_YawStop_manuell
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM7 1 3 3 0
♦ Root Cause:
This alarm is called when we Press the STOP button (Yaw control) either in the visualization or in WT305
♦ Remedial Action:
1. We use this facility to work in the turbine (Yaw system) under stopped condition or under emergency condition if any
2. Turbine will start only when press the AUTO button (Yaw control)
Temp_GearBox_IMS_NDE_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM8 1 0 3 0
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gearbox intermediate section in the non driven end
♦ Reason:
We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_GearBox_IMS_NDE (100 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication inside the
gear box intermediate section in the non driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
RS_NewProgram
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM9 1 4 3 0
♦ Root Cause:
This alarm is called whenever we update the application software in the turbine
♦ Remedial Action:
1. This alarm indicates that there is a new program update done in the machine
SE_RebootPLC
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM10 1 4 3 0
♦ Place of the problem: Problem is related to the Bottom Panel and Control Panel
♦ Root Cause:
Alarm is called if the PLC rebooted
♦ Reason:
Missing of the 24V DC at the NT250 power supply module / synchronization problem of both fast bus modules
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the 24V DC at the NT250 power supply module. If OK then 4. Check for the loose connection in all Bachmann modules, if OK then 5. Check the warning for the fast bus synchronization problem in the previous log
book and current log book by connecting M-Manager, if you found 6. Check the optical cable, jumper setting of the fast bus modules and functionality
of all Bachmann modules 7. Replace the worned parts if required 8. Start the turbine and be happy
RS_TopServiceStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM11 1 4 3 1000
♦ Root Cause:
This alarm is called when we switch on the service stop button in top panel
♦ Remedial Action:
1. We use this facility to work in the turbine under stopped condition if any 2. Turbine will start only when we switch off the service button
Temp_GearBox_IMS_DE_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM12 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gearbox intermediate section in the driven end
♦ Reason:
We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_GearBox_IMS_DE (95 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication inside the
gear box intermediate section in the driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_GearBox_IMS_DE_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM13 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gearbox intermediate section in the driven end
♦ Reason:
We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_GearBox_IMS_DE (90 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication inside the
gear box intermediate section in the driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_GeneratorBearing_DE_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM14 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator bearing in the driven end
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_GeneratorBearing_DE (100 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper greasing in the
generator bearing driven end also check for proper alignment of generator 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_GeneratorBearing_DE_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM15 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator bearing in the driven end
♦ Reason: We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_GeneratorBearing_DE (98 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper greasing in the
generator bearing driven end also check for proper alignment of generator 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_GeneratorBearing_NDE_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM16 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator bearing in the non driven end
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_GeneratorBearing_NDE (100 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper greasing in the
generator bearing non driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_GeneratorBearing_NDE_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM17 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator bearing in the non driven end
♦ Reason: We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_GeneratorBearing_NDE (98 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper greasing in the
generator bearing non driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L1_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM20 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator Winding (L1)
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_G1L1 (150 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper cooing system in the
generator 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L1_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM21 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator Winding (L1)
♦ Reason: We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_G1L1 (148 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper cooing system in the
generator 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L2_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM22 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator Winding (L2)
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_G1L2 (150 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper cooing system in the
generator 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L2_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM23 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator Winding (L2)
♦ Reason: We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_G1L2 (148 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper cooing system in the
generator 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L3_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM24 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator Winding (L3)
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_G1L3 (150 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper cooing system in the
generator 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L3_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM25 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Generator Winding (L3)
♦ Reason: We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_G1L3 (148 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper cooing system in the
generator 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_OilSump_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM32 1 0 3 10000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gear box oil
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_GearBoxOilSump (80 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. If the temperature rise was real then check for the proper cooing system (Oil
cooler motor & Filter motor) 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_OilSump_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM33 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gear box oil
♦ Reason: We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_GearBoxOilSump (75 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. If the temperature rise was real then check for the proper cooing system (Oil
cooler motor & Filter motor) 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_OilSump_LowWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM34 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is abnormal temperature decrease below the standard level in the Gear box oil
♦ Reason: We will get the Alarm only if measured value is less than minimum warn level parameter Temp_GearBoxOilSump (10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the proper functionality of Gear box heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_OilSump_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM35 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is abnormal temperature decrease below the standard level in the Gear box oil
♦ Reason: We will get the Alarm only if measured value is less than minimum Stop level parameter Temp_GearBoxOilSump (-5 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the proper functionality of Gear box heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_GearBox_HSS_DE_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM36 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gearbox High speed shaft section in the driven end
♦ Reason:
We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_GearBox_HSS_DE (95 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication inside the
gear box HSS section in the driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_MainBearing_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM37 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Main bearing
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_Hub Bearing (70 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication to the Hub
bearing 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_MainBearing_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM38 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Main bearing
♦ Reason: We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_Hub Bearing (65 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication to the Hub
bearing 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_Nacelle_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM39 1 0 3 10000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Nacelle
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_Nacelle (60 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper cooling system
(Nacelle fan) 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_Nacelle_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM40 0 0 3 0
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Nacelle
♦ Reason: We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_Nacelle (50 deg)
♦ Remedial Action:
9. Using M-Manager, Take the fast log and event log of the particular alarm 1. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 2. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 3. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 4. Check for the proper functionality of the particular PTAI pin if found ok then 5. If the temperature rise was real then check for the proper cooling system
(Nacelle fan) 6. Replace the worned parts if any 7. Start the turbine and be happy
Temp_CapPanel_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM42 1 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause:
If there is any abnormal temperature rise in the Capacitor Panel
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_BottomCapSection (60 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. If the temperature rise was real then check for the proper function of cooling
fans 7. Replace the worned parts if any 8. Start the turbine and be happy
Mech_BrakeProgr4_Timeout Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM43 4 0 5 60000
♦ Place of the problem: Problem is related to the hub and nacelle
♦ Root Cause:
Alarm is called if the generator rpm is more than 100 rpm during brake program
♦ Reason:
After the turbine status 24, generator rpm should immediately reduced to less than 100 rpm
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the proper pitch out function of all 3 blades during brake program, If
OK then 4. By using service password, please check the parameters which is related to the
PID controller in the visualization 5. Check the gap setting of the generator speed sensor, if OK then 6. Check the functionality of generator speed sensor by moving the metal object in
front of that and observe the LED status. If OK then 7. Check for the loose connection from sensor to CNT 204 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Temp_GearBox_IMS_NDE_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM44 1 0 5 2000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Gearbox intermediate section in the non driven end
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_GearBox_IMS_NDE (5 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the proper function of gear box heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Mech_BrakeProgr5_Timeout Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM46 4 0 5 40000
♦ Place of the problem: Problem is related to the hub and nacelle
♦ Root Cause:
Alarm is called if the generator rpm is more than 100 rpm during brake program
♦ Reason:
After the turbine status 25, generator rpm should immediately reduced to less than 100 rpm
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the proper pitch out function of all 3 blades during brake program, If
OK then 4. By using service password, please check the parameters which is related to the
PID controller in the visualization 5. Check the gap setting of the generator speed sensor, if OK then 6. Check the functionality of generator speed sensor by moving the metal object in
front of that and observe the LED status. If OK then 7. Check for the loose connection from sensor to CNT 204 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Temp_ReducedPower
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM49 0 0 3 2000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Reduced Power status will arise if there is any problem with temperature
♦ Reason:
We will get this status if there is any abnormal increase of the following temperatures Temp_G1L1_High Warn ; Temp_G1L2_High Warn ; Temp_G1L3_High Warn ; Temp_GeneratorBearing_NDE High warn ; Temp_GB_IMS DE_High warn ; Temp_GeneratorBearing_DE High warn ; Temp_Oil sump_High warn ; Temp_GB HSS_NDE High warn
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs check whether the alarm comes because of
which temperature and check the corresponding motor for the proper function 4. Check the condition of the oil cooler bellow and generator bellow 5. Check for the loose connection of the corresponding temperature sensor from
the terminal of the sensor to PTAI 216 / AIO288 modules 6. Check the resistance value of the particular PT100 / RTD sensor 7. Replace the worned parts if required 8. Start the turbine and be happy
Mech_GearOilFilter_ChokedStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM50 1 0 3 30000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is high
♦ Reason:
We will get the alarm when DI_GearOilFilter_Choked is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Physically check for the gear oil filter unit for dust blockage. 4. If blocked then immediately check the viscosity of the gear oil as per standard 5. If not blocked then check for the loose connection from DIO module to Gear oil
filter choked sensor 6. Check the functionality of both the sensor and the particular digital input 7. Replace the worned parts if required 8. Start the turbine and be happy
Mech_SwitchOffArea_NacellePos
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM51 1 0 2 10000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is high
♦ Reason:
We will get the alarm when DI_NorthPosition is low when turbines reach exact north position
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the loose connection from DIO module to North position sensor 4. Check the functionality of both the sensor and the particular digital input if found
ok then 5. Re do the North position calibration in the turbine 6. Replace the worned parts if required 7. Start the turbine and be happy
Hyd_GearOilLevel_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM52 1 0 3 10000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We will get the alarm when DI_GearOil_Level is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Physically check for the gear oil leakage thoroughly and check for the quantity of
oil 4. Check for the loose connection from DIO module to Gear oil level sensor 5. Check the functionality of both the sensor and the particular digital input 6. Replace the worned parts if required 7. Start the turbine and be happy
Hyd_GearOilPressure_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM53 1 0 3 120000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We will get the alarm when DI_GearOil_Pressure is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Physically check for the gear oil leakage thoroughly also check for the quantity of
oil 4. Also check the whether the filter motor is running normally 5. Check for the loose connection from DIO module to Pressure switch 6. Check the functionality of both the Pressure switch and the particular digital
input 7. Replace the worned parts if required 8. Start the turbine and be happy
Mech_WindSpeed1_2_DefStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM57 1 0 3 0
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Problem with the wind speed which is measured by anemometer 1 & 2
♦ Reason:
We will get the Alarm only if there is any wire break or failure of the sensor
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the mechanical moment of the anemometer 1 & 2. If OK then 4. Check for the loose connection at the connectors as per the circuit 5. Check the operating supply (24V DC) of the anemometer 1 & 2, if OK then 6. Check the output of the anemometer 1 & 2. If OK then 7. Check the functionality of the PTAI 216 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_Anemometer_DefStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM58 1 4 3 0
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
We will get the alarm after anemometer test
♦ Reason:
We will get this alarm if the generator rpm is not reasonable with the wind speed at fixed pitch angle
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the mechanical moment of the anemometer / wind speed sensor. If OK
then 4. Check the operating supply 24V DC of the anemometer, if OK then 5. Check the voltage output of the anemometer. If OK then 6. Check the functionality of the PTAI 216 module 7. Replace the worned parts if required 8. Start the turbine and be happy
Mech_FastBrake_Timeout Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM59 4 0 3 50000
♦ Place of the problem: Problem is related to the hub and nacelle
♦ Root Cause:
Alarm is called if the generator rpm is more than 100 rpm during brake program
♦ Reason:
After the turbine status 22, generator rpm should immediately reduced to less than 100 rpm
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the proper pitch out function of all 3 blades during brake program, If
OK then 4. By using service password, please check the parameters which is related to the
PID controller in the visualization 5. Check the gap setting of the generator speed sensor, if OK then 6. Check the functionality of generator speed sensor by moving the metal object in
front of that and observe the LED status. If OK then 7. Check for the loose connection from sensor to CNT 204 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_SoftBrake_Timeout Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM60 2 0 3 120000
♦ Place of the problem: Problem is related to the hub and nacelle
♦ Root Cause:
Alarm is called if the generator rpm is more than 100 rpm during brake program
♦ Reason:
After the turbine status 21, generator rpm should immediately reduced to less than 100 rpm
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the proper pitch out function of all 3 blades during brake program, If
OK then 4. By using service password, please check the parameters which is related to the
PID controller in the visualization 5. Check the gap setting of the generator speed sensor, if OK then 6. Check the functionality of generator speed sensor by moving the metal object in
front of that and observe the LED status. If OK then 7. Check for the loose connection from sensor to CNT 204 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_WindSpeed_DiffStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM64 1 0 3 10000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Problem with difference in wind speed which is measured by the anemometer 1 & 2
♦ Reason:
We will get the Alarm only if AI_Intern_WindSpeed Diff is greater than the specified parameter (+2 m/s or – 2 m/s)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the mechanical moment of the anemometer / wind speed sensor. If OK
then 4. Check the operating supply 24V DC of the anemometer, if OK then 5. Check the voltage output of the anemometer. If OK then 6. Check the functionality of the PTAI 216 module 7. Replace the worned parts if required 8. Start the turbine and be happy
Mech_DiscBrake_NotReleased
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM65 3 0 3 60000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Alarm is called if the particular digital input of the DIO 280 module is low
♦ Reason:
Missing of the 24V DC from the brake free sensor
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the brake free sensor mechanically for proper function of its movements 4. Check for the loose connection from sensor to DIO 280 module 5. Check the 24V DC output from the brake free sensor. 6. Here you should get 24V DC if not then replace the worned parts 7. Start the turbine and be happy
Mech_SwitchTwistCCW_EndStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM66 1 4 3 1000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is high
♦ Reason: We will get the alarm when DI_CableTwisted_CCW is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check whether the cables are twisted fully 4. Untwist the cables through manual yawing and make north setting as well as
twist stop sensor switch setting as per standard 5. Start the turbine and be happy
Mech_SwitchTwistCW_EndStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM67 1 4 3 1000
♦ Place of the problem: ♦
Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is high
♦ Reason:
We will get the alarm when DI_CableTwisted_CW is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check whether the cables are twisted fully 4. Untwist the cables through manual yawing and make north setting as well as
twist stop sensor switch setting as per standard 5. Start the turbine and be happy
Mech_Generator_PeakSpeedStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM68 2 0 3 0
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the measured value is greater than high stop parameter
♦ Reason: We will get the alarm when measured value is greater than AI_intern_SpeedGenerator (1750 rpm)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs find whether generator rpm increases during
Cutin Time
4. Check the complete functionality of the IXYS soft starter i.e. if there is prolonged synchronization then there is a possibility for rpm to increase drastically
5. Also check the gap setting for the Generator speed sensor
Running Time
6. Check the gap setting for the Generator speed sensor 7. Check whether the pitch angle of all three blades are same using logs 8. Replace the worned parts if required 9. Start the turbine and keenly observe for corresponding rpm value if found OK be
happy
Mech_RotorFR_OverSpeedStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM69 2 0 3 0
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the signal is low in DIO 280
♦ Reason:
We will get the alarm when signal DI_OverSpeed_External is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs find whether Rotor_FR rpm increases during
Cutin Time
4. Check the complete functionality of the IXYS soft starter i.e. if there is prolonged synchronization then there is a possibility for rpm to increase drastically
5. Also check the gap setting for the Rotor_FR speed sensor 6. Check for the loose connection from FR1 monitor to DIO280 module
Running Time
7. Check the gap setting for the Rotor_FR speed sensor 8. Check for the loose connection from FR1 monitor to DIO280 module 9. Check whether the pitch angle of all three blades are same using logs 10. Replace the worned parts if required 11. Start the turbine and keenly observe for corresponding rpm value if found OK be
happy
Mech_Rotor_PeakSpeedStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM70 3 0 3 0
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the measured value is greater than high stop parameter
♦ Reason: We will get the alarm when measured value is greater than AI_intern_SpeedRotor (19 rpm)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs find whether rotor rpm increases during
Cutin Time
4. Check the complete functionality of the IXYS soft starter i.e. if there is prolonged synchronization then there is a possibility for rpm to increase drastically
5. Also check the gap setting for the Rotor speed sensor
Running Time
6. Check the gap setting for the Rotor speed sensor 7. Check whether the pitch angle of all three blades are same using logs 8. Replace the worned parts if required 9. Start the turbine and keenly observe for corresponding rpm value if found OK be
happy
Mech_RPM_DiffStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM71 3 0 3 5000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the measured value is greater than high stop parameter
♦ Reason:
We will get the alarm when measured value is greater than AI_intern_RpmDiff (+50 / -50 rpm)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs find whether generator rpm / rotor rpm jumps 4. After finding check the functionality of the corresponding sensor also check for
the proper gap distance as per the standard 5. Replace the worned parts if required 6. Start the turbine and keenly observe for corresponding rpm value if found OK be
happy
Mech_TowerVib_stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM72 2 4 2 0
♦ Place of the problem: Problem is related to the nacelle control panel and particularly for the PCH 1026 digital structural vibration monitor
♦ Root Cause:
Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
Problem with the abnormal vibration of the tower due to misalignment of the nacelle accessories (or) missing of the 24V DC from the PCH1026 to DIO 280 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the nacelle accessories (Gear Box, Generator etc...) for the misalignment. If
you found OK, then 4. Compare the pitch angle of all 3 blades and it should be same. If its OK, then 5. Check the 24V DC output from the PCH 1026 digital structural vibration monitor.
Here you should get 24V DC if not then replace the PCH 1026 monitor. 6. Start the turbine and observe for vibration. 7. If you found OK be happy.
Mech_TowerVib_warn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM73 0 0 3 0
♦ Place of the problem: Problem is related to the nacelle control and particularly for PCH 1026 digital structural vibration monitor
♦ Root Cause:
Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
Problem with the abnormal vibration of the tower due to misalignment of the nacelle accessories (or) missing of the 24V DC from the PCH1026 to DIO 280 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the nacelle accessories (Gear Box, Generator etc...) for the misalignment. If
you found OK, then 4. Compare the pitch angle of all 3 blades and it should be same. If its OK, then 5. Check the 24V DC output from the PCH 1026 digital structural vibration monitor.
Here you should get 24V DC if not then replace the PCH 1026 monitor. 6. Start the turbine and observe for vibration. 7. If you found OK be happy
Mech_DriveTrainVib_stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM74 2 4 2 0
♦ Place of the problem: Problem is related to the nacelle control panel and particularly for PCH 1026 digital structural vibration monitor
♦ Root Cause:
Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
Problem with the abnormal vibration of the Gear box due to misalignment of the nacelle accessories (or) missing of the 24V DC from the PCH1026 to DIO 280 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the nacelle accessories (Gear Box, Generator etc...) for the misalignment. If
you found OK, then 4. Compare the pitch angle of all 3 blades and it should be same. If its OK, then 5. Check the 24V DC output from the PCH 1026 digital structural vibration monitor.
Here you should get 24V DC if not then replace the PCH 1026 monitor. 6. Start the turbine and observe for vibration 7. If you found OK be happy.
Mech_DriveTrainVib_warn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM75 0 0 3 0
♦ Place of the problem: Problem is related to the nacelle control panel and particularly for PCH 1026 digital structural vibration monitor
♦ Root Cause:
Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
Problem with the abnormal vibration of the Gearbox due to misalignment of the nacelle accessories (or) missing of the 24V DC from the PCH1026 to DIO 280 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the nacelle accessories (Gear Box, Generator etc...) for the misalignment. If
you found OK, then 4. Compare the pitch angle of all 3 blades and it should be same. If its OK, then 5. Check the 24V DC output from the PCH 1026 digital structural vibration monitor.
Here you should get 24V DC if not then replace the PCH 1026 monitor. 6. Start the turbine and observe for vibration 7. If you found OK be happy
Mech_VibrationSwitch_Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM76 4 4 3 0
♦ Place of the problem: Problem is related to the nacelle and particularly for vibration sensor
♦ Root Cause:
Alarm is called if the digital input of the DIO 280 module is high
♦ Reason:
Problem with the abnormal vibration of the tower due to misalignment of the nacelle accessories and DI_VibrationSensorMech is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the nacelle accessories (Gear Box, Generator etc...) for the misalignment.
If you found OK, then 4. Compare the pitch angle of all 3 blades and it should be same. If its OK, then 5. Check the NO contact wiring of Vibration sensor(Shake sensor) 6. Start the turbine and observe for vibration. 7. If you found OK be happy.
Mech_WindVane1_2_DefStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM77 1 4 3 1000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Problem with the wind direction which is measured by Wind Vane sensor 1 & 2
♦ Reason:
We will get the Alarm only if there is any wire break or failure of the sensor
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the mechanical moment of the wind vane 1 & 2 / wind direction sensor. If
OK then 4. Check for the loose connection at the connectors as per the circuit 5. Check the operating supply (24V DC) of the wind vane 1 & 2, if OK then 6. Check the output of the wind vane 1 & 2. If OK then 7. Check the functionality of the PTAI 216 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_WindVane1_DefectWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM78 0 0 3 60000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Problem with the wind direction which is measured by Wind Vane sensor 1
♦ Reason:
We will get the Alarm only if there is no change in the measured wind direction
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the mechanical moment of the wind vane 1 / wind direction sensor. If OK
then 4. Check for the loose connection at the connectors as per the circuit 5. Check the operating supply (24V DC) of the wind vane 1, if OK then 6. Check the output of the wind vane 1. If OK then 7. Check the functionality of the PTAI 216 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_WindVane2_DefectWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM79 0 0 3 60000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Problem with the wind direction which is measured by Wind Vane sensor 2
♦ Reason:
We will get the Alarm only if there is no change in the measured wind direction
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the mechanical moment of the wind vane 2 / wind direction sensor. If OK
then 4. Check for the loose connection at the connectors as per the circuit 5. Check the operating supply (24V DC) of the wind vane 2, if OK then 6. Check the output of the wind vane 2. If OK then 7. Check the functionality of the PTAI 216 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_WindSpeed1_DefectWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM80 0 0 3 60000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Problem with the wind speed which is measured by anemometer 1
♦ Reason:
We will get the Alarm only if there is no change in the measured wind speed
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the mechanical moment of the wind speed 1 / wind speed sensor. If OK
then 4. Check for the loose connection at the connectors as per the circuit 5. Check the operating supply (24V DC) of the wind speed 1, if OK then 6. Check the output of the wind speed 1. If OK then 7. Check the functionality of the PTAI 216 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_YawBrake_NotReleased
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM81 1 4 0 100
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_YawBrake high when DO_ YawCW / DO_ YawCW is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to yaw brake sensor if
found OK then 4. Check the gap setting of the yaw brake sensor if OK then 5. Check whether the sensor senses properly by manual metal object movement 6. Replace the worned parts if required 7. Start the turbine and be happy
Elec_FB_ThyristorBypass_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM82 1 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason: We should get the signal DI_FB_ThyristorBypass high when DO_ ThyristorBypass is high. (Or) We should not get the signal DI_FB_ThyristorBypass unless DO_ ThyristorBypass is low.
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs determine whether the error occurs
During Free Wheeling to Production mode
4. Initially check for the loose connection from DIO module to Bypass Contactor if found OK then
5. Check the functionality PLC relay, Bypass contactor and Auxiliary contactor 6. Replace the worned parts if required 7. Start the turbine and be happy
During Running to Free Wheeling mode / Error mode
8. Check the physical status of the Bypass contactor (It should be in open condition) if found OK then
9. Check the functionality PLC relay(It’s contact point should be open) 10. Replace the worned parts if required 11. Start the turbine and be happy
Elec_CapacitorFeedBack_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM83 1 0 3 5000
♦ Place of the problem: Problem is related to the Power Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason: We should get the signal DI_FB_Capacitor high when any one of the DO_Compensation is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to Capacitor contactors
if found OK then 4. Check the functionality of the PLC relays and capacitor contactors if OK then 5. Check the NO contact of the capacitors contactors 6. Replace the worned parts if required 7. Start the turbine and be happy
Elec_Voltage Asymmetry
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM84 1 4 3 500
♦ Place of the problem: Problem is related to the MFR 1371 (Multi Functional Relay)
♦ Root Cause:
Alarm is called if the digital input of the DIO 264 module is low
♦ Reason:
Missing of the 24V DC from the MFR1371 to DIO 264 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the 690V AC at the MFR 1371 unit as per the circuit. If OK then 4. Check the 24V DC output from the MFR 1371 5. Check the 24V DC at the particular input of the DIO264 module 6. Here you should get 24V DC if not then replace worned parts if required 7. Start the turbine and be happy
Elec_CutintoG1_Timeout Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM85 1 0 3 240000
♦ Place of the problem:
Problem is related to the Power Panel
♦ Root Cause: We will get this alarm only if the grid synchronization is not completed successfully
♦ Reason:
If there is any problem with the synchronization of the generator with the grid, then we will have this error
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter
If it happens in running turbine:
3. Check the digital output (24V DC – Soft starter Enable signal) from DIO 264 to IXYS soft starter
4. Check the analog output signal from AIO 288 to IXYS soft starter 5. Check the FB synchronization OK signal from IXYS to the DIO 264. If OK then 6. Check for the proper function of IXYS soft starter. If OK then 7. Check for the resistance value of the thyristors and the wirings as per circuit, if OK
then 8. Check for the proper function of power contactors (Big G & Bypass) 9. Check for the generator winding values 10. Replace the worned item if required
If it happens in new turbine: 11. Check the phase sequence of the incoming 690V AC power supply as well as the
phase sequence of the G1 power cables 12. Check the digital output (24V DC – Soft starter Enable signal) from DIO 264 to IXYS
soft starter 13. Check the analog output signal from AIO 288 to IXYS soft starter 14. Check the FB synchronization OK signal from IXYS to the DIO 264. If OK then 15. Check for the proper function of IXYS soft starter. If OK then 16. Check for the resistance value of the thyristors, if OK then 17. Check for the proper function of power contactors (Big G & Bypass) 18. Check for the generator winding values 19. Replace the worned item if required and start the turbine and also be happy
Elec_DifferentialProtection_OpenStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM86 1 0 3 0
♦ Place of the problem: Problem is related to the Top Panel and Generator
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is high
♦ Reason: We will get the alarm when DI_DifferentialProtection signal is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the physical condition of the power cables if found OK then 4. Check the resistance value of the Generator CT and its physical fixture 5. Check for the loose connection from Generator CT to DPR if found OK then 6. Check for the DPR settings as per standard 7. Check the functionality of the DPR 8. Replace the worned parts if required 9. Start the turbine and be happy
Elec_TestAccuPitch_TimeOutStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM87 1 0 3 20000
♦ Place of the problem: Problem is related to the hub panel
♦ Reason:
During the start up of turbine, testing the Battery voltage of all battery banks through safety speed test is one of the tests conducted through program. If the turbine is failed to complete the test in limited time period we will get this alarm
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the safety speed loop particularly in voltage surveillance circuit if found ok
then 5. Check the output of the battery charger unit (290V DC) in the nacelle control
panel. If it is OK then, 6. Switch OFF the 2F2 MCB which supplies 290V DC to hub panel 7. Check the battery voltage in the corresponding terminal block as per the circuit.
Multi meter should read 290V DC approximately, if not then check the voltage of the individual battery cells and it should show 12V approx. If not then replace the particular battery bank.
8. After replacement of the battery bank, switch ON all the MCB’s and take the safety speed.
9. If you found OK then start the turbine and be happy.
Elec_TestAnemometer_TimeOutStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM88 1 0 3 240000
♦ Place of the problem:
Problem is related to the bottom panel, nacelle and control panel
♦ Root Cause: Alarm is called only if the measured generator rpm is not reasonable with the wind speed
♦ Reason:
We will get this alarm if the generator rpm is not plausible with the wind speed at fixed pitch angle
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter
There are 3 possibilities for this error: I. Pitch Angle:
If there is any error, after resetting the turbine all 3 blades should move to 0 degree. If it not happens check the safety speed signal loop of the frequency converter. It should be high during normal condition (No error). If the safety speed signal is low, then check the complete loop of the safety speed signal as per the circuit.
II. Anemometer: 1. Check the mechanical moment of the anemometer / wind speed sensor. If OK
then 2. Check the operating supply 24V DC of the anemometer, if OK then 3. Check the voltage output of the anemometer. If OK then 4. Check the functionality of the PTAI 216 module 5. Replace the worned parts if required
III. Generator RPM: 1. Check the gap setting of the generator speed sensor, if OK then 2. Check the functionality of generator speed sensor by moving the metal object in
front of that and observe the LED status. If OK then 3. Check for the loose connection from sensor to CNT 204 module 4. Replace the worned parts if required 5. Start the turbine and be happy
Elec_FB_GeneratorFan_Err
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM89 0 0 3 5000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_GeneratorFan high when DO_ GeneratorFan is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to Fan motor if found
OK then 4. Check the input supply(690V AC) for the MPCB and its NO contact for feedback if
OK then 5. Check the functionality of the PLC relay as well as contactor and its NO contact if
found OK 6. Check the motor winding values as per standard 7. Replace the worned parts if required 8. Start the turbine and be happy
Elec_FB_NacelleFan_ErrWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM91 0 0 3 5000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_NacelleFan high when DO_ NacelleFan is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to Fan motor if found
OK then 4. Check the input supply(690V AC) for the MPCB and its NO contact for feedback if
OK then 5. Check the functionality of the PLC relay as well as contactor and its NO contact if
found OK 6. Check the motor winding values as per standard 7. Replace the worned parts if required 8. Start the turbine and be happy
Elec_FrequencyLow_Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM92 2 4 3 1000
♦ Place of the problem: Problem is related to the Grid Supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the grid frequency is abnormal
♦ Reason: If the measured frequency is lesser than the low stop parameter of AI_Intern_Frequency_Grid (45 Hz)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs during grid failure then it is normal (No trouble shooting
required) 4. If this error occurs without grid failure then 5. Check the 690V AC at the MFR 1371 unit as per the circuit 6. Replace the worned parts if required (MPCB / HRC Fuses) 7. Start the turbine and be happy
Elec_FrequencyHigh_Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM93 2 4 3 1000
♦ Place of the problem: Problem is related to the Grid Supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the grid frequency is abnormal
♦ Reason: If the measured frequency is greater than the high stop parameter of AI_Intern_Frequency_Grid (55 Hz)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs during grid failure then it is normal (No trouble shooting
required) 4. If this error occurs without grid failure then 5. Check the 690V AC at the MFR 1371 unit as per the circuit 6. Replace the worned parts if required (MPCB / HRC Fuses) 7. Start the turbine and be happy
Elec_FB_Generator_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM94 1 0 3 500
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason: We should get the signal DI_FB_Generator1 high when DO_ Generator is high. (or) We should not get the signal DI_FB_ Generator1 unless DO_ Generator is low.
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs determine whether the error occurs
During Free Wheeling to Production mode
4. Initially check for the loose connection from DIO module to Big G Contactor if found OK then
5. Check the functionality PLC relay, Big G contactor and Auxiliary contactor 6. Replace the worned parts if required 7. Start the turbine and be happy
During Running to Free Wheeling mode / Error mode
8. Check the physical status of the Big G contactor (It should be in open condition) if found OK then
9. Check the functionality PLC relay(It’s contact point should be open) 10. Replace the worned parts if required 11. Start the turbine and be happy
Elec_GenBrushesWornOut
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM95 1 0 3 1000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We will get the alarm when DI_ GeneratorBrushesWornOut is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check whether the generator brushes are really worned out or not. 4. If yes, replace it with new one. 5. If No, then check the NO contact of generator brushes worn out sensor 6. Check for the loose connection from DIO module to generator brushes worn out
sensor 7. Replace the worned parts if required 8. Start the turbine and be happy
Elec_FB_GearOilCooler_Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM96 1 0 3 500
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_GearOilCooler high when DO_ GearOil_Cooler is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to Gear oil cooler motor
if found OK then 4. Check the input supply(690V AC) for the MPCB and its NO contact for feedback if
OK then 5. Check the functionality of the PLC relay as well as contactor and its NO contact if
found OK 6. Check the motor winding values as per standard 7. Replace the worned parts if required 8. Start the turbine and be happy
Elec_LightningProtection_warn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM98 0 0 3 100
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason:
We will get the alarm when DI_LightningProtection is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the loose connection from DIO module to the DHEN’port (Lightning
arrester Guards) 4. Check whether DHEN’port has failed to function 5. Check the 24V DC from the NO contact of the DHEN’port to DIO module 6. Replace the worned parts if required 7. Start the turbine and be happy
Elec_ACBOff_Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM99 4 4 3 100
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason: Normally this signal DI_ACB should be high when the ACB is ON
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the Physical status of ACB (ON / OFF) 4. If it is ON then check the feedback circuit from ACB to DIO 264 5. If it is OFF then we have find the reason for which ACB is tripped 6. The reason for the ACB tripping may be one of the following
→ Earth fault → Over current → Short circuit → Differential Protection Relay may be energized → Emergency stop push button may be pressed → Check ACB settings → Internal problem in ACB
7. Start the turbine and be happy
Elec_FB_Aviation_Light
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM100 0 0 3 1000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_Aviation_Light is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to Aviation supply unit if
found OK then 4. Replace the worned parts if required 5. Start the turbine and be happy
Elec_PowerConsumptionStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM101 1 3 3 10000
♦ Place of the problem: Problem is related to the Power Panel, Nacelle and Hub
♦ Root Cause: Alarm is called if there is abnormal consumption of power
♦ Reason: If the measured value is greater than the low stop parameter AI_intern_ActivePower (-100kW)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check whether the error occurred in
Running Turbine
4. Compare the pitch angle of all 3 blades and it should be same during running by keenly observing the logs. If it is found abnormal most probably it will be the Slip ring problem (Check the Hub supply completely) otherwise
5. Check for the loose connection in CT wiring as in circuit up to MFR 1371 unit 6. Replace the worned parts if required
New Turbine (During Commissioning)
7. Check for the proper CT wiring as per the circuit 8. Check for the CT direction as per the Current flow 9. Compare the pitch angle of all 3 blades and it should be same during running by
keenly observing the logs. If it is found abnormal most probably it will be the Slip ring problem (Check the Hub supply completely)
10. Check for the loose connection in CT wiring as in circuit up to MFR 1371 unit 11. Replace the worned parts if required 12. Start the turbine and be happy
Elec_PowerHigh_Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM102 1 0 3 1000
♦ Place of the problem: Problem is related to the Power Panel, Nacelle and Hub
♦ Root Cause: Alarm is called if there is abnormal power production
♦ Reason: If the measured value is greater than the high stop parameter AI_intern_ActivePower (2400kW)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the pitch angle calibration of all three Blades 4. Check for the loose connection in CT wiring as in circuit up to MFR 1371 unit 5. Replace the worned parts if required 6. Start the turbine and be happy
Elec_SafetyChainStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM103 5 4 3 0
♦ Place of the problem: Problem is related to the Bottom and Nacelle
♦ Root Cause: Alarm is called if the DI_SafetyChain_Activated is low
♦ Reason: Missing of the 24V DC from the Safety chain contactor to DIO 264 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. By keenly observing the logs confirm whether this error occurred alone or with
some other error 4. If it comes alone then we have to check the 24V DC from the Safety chain
contactor to the DIO 264 module 5. If it comes with any of the following reasons just troubleshoot those errors alone
to solve the problem → Emergency stop in both bottom and top panel → Shake sensor or vibration sensor → Twist stop sensor → ACB (Air Circuit Breaker) → MPCB 8Q2 Main control supply
6. Start the turbine and be happy
Elec_SoftStarter_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM104 1 0 3 5000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is high
♦ Reason: During synchronization if we get DI_SoftStarter signal high then we will get this error
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the digital output (24V DC – Soft starter Enable signal) from DIO 264 to IXYS
soft starter if found OK then 4. Check the analog output signal from AIO 288 to IXYS soft starter if found OK then 5. Check for the input supply and proper function of IXYS soft starter. If OK then 6. Check for the resistance value of the thyristors and the wirings as per circuit 7. Replace the worned item if required 8. Start the turbine and be happy
Elec_UPS_LowWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM105 0 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason: We will get the alarm when DI_UPSLow signal is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs after a long grid failure no troubleshooting required 4. If this error occurs for a long period after resuming grid then we have to check
the battery condition of the UPS if found OK then 5. Check for the loose connection from UPS to DIO 264 module 6. Replace the worned parts if required 7. Start the turbine and be happy
Elec_VectorSurge_Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM106 4 4 3 0
♦ Place of the problem: Problem is related to the Grid supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason: Missing of the 24V DC from the MFR1371 to DIO 264 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the 690V AC at the MFR 1371 unit as per the circuit. If OK then 4. Check the 24V DC output from the MFR 1371 5. Check the 24V DC at the particular input of the DIO264 module 6. Here you should get 24V DC if not then replace worned parts if required 7. Start the turbine and be happy
Elec_VibControllerErr_stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM107 1 0 3 0
♦ Place of the problem: Problem is related to the nacelle control panel and particularly for the PCH 1026 digital structural vibration monitor
♦ Root Cause:
Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
Missing of the 24V DC from the PCH1026 to DIO 280 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the 24V DC output from the PCH 1026 digital structural vibration monitor.
Here you should get 24V DC if not then replace the PCH 1026 monitor. 4. Start the turbine and be happy
Elec_YawSensor_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM108 1 4 3 5000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_YawSensor high when DO_ YawCW / DO_ YawCW is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to yaw sensor if found
OK then 4. Check the gap setting of the yaw sensor if OK then 5. Check whether the sensor senses properly by manual metal object movement 6. Replace the worned parts if required 7. Start the turbine and be happy
Pitch_Battery Surveillance 1
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM109 4 0 3 5000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 1 is low DIi_Pit1_Battery Surveillance
♦ Reason: Missing of the 24V DC from the battery surveillance sense communication of blade 1
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the 290V DC at the input of the Battery surveillance sense communication.
If ok then 5. Check the operating supply (24V DC) of the battery surveillance sense
communication of the blade 1, if OK then 6. Check the 24V DC at the NO contact of the battery surveillance. If OK then 7. Check the 24V DC at the particular input of the frequency converter 8. Replace the worned parts if required and reset the turbine and take the safety
speed 9. If you found OK then start the turbine and be happy
Pitch_Battery Surveillance 2
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM110 4 0 3 5000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 2 is low DIi_Pit2_Battery Surveillance
♦ Reason: Missing of the 24V DC from the battery surveillance sense communication of blade 2
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the 290V DC at the input of the Battery surveillance sense communication.
If ok then 5. Check the operating supply (24V DC) of the battery surveillance sense
communication of the blade 1, if OK then 6. Check the 24V DC at the NO contact of the battery surveillance. If OK then 7. Check the 24V DC at the particular input of the frequency converter 8. Replace the worned parts if required and reset the turbine and take the safety
speed 9. If you found OK then start the turbine and be happy
Pitch_Battery Surveillance 3
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM111 4 0 3 5000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 3 is low DIi_Pit3_Battery Surveillance
♦ Reason: Missing of the 24V DC from the battery surveillance sense communication of blade 3
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the 290V DC at the input of the Battery surveillance sense communication.
If ok then 5. Check the operating supply (24V DC) of the battery surveillance sense
communication of the blade 1, if OK then 6. Check the 24V DC at the NO contact of the battery surveillance. If OK then 7. Check the 24V DC at the particular input of the frequency converter 8. Replace the worned parts if required and reset the turbine and take the safety
speed 9. If you found OK then start the turbine and be happy
Temp_GearBox_HSS_DE_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM113 0 0 3 0
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gearbox High speed shaft section in the driven end
♦ Reason:
We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_GearBox_HSS_DE (90 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication inside the
gear box HSS section in the driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Elec_FB_YawCCW_ErrWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM114 1 0 3 5000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_YawCCW high when DO_ YawCCW is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to all yaw motors if
found OK then 4. Check the input supply(690V AC) for the MPCB and its NO contact for feedback if
OK then 5. Check the functionality of the PLC relay as well as contactor and its NO contact if
found OK 6. Check the motor winding values as per standard 7. Replace the worned parts if required 8. Start the turbine and be happy
Elec_FB_YawCW_ErrWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM115 1 0 3 5000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_YawCW high when DO_ YawCW is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to all yaw motors if
found OK then 4. Check the input supply(690V AC) for the MPCB and its NO contact for feedback if
OK then 5. Check the functionality of the PLC relay as well as contactor and its NO contact if
found OK 6. Check the motor winding values as per standard 7. Replace the worned parts if required 8. Start the turbine and be happy
Elec_YawDirectionStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM116 1 0 3 10000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the wind direction changes suddenly
♦ Reason:
We will get the alarm when the measured value is greater than the high stop parameter AI_intern_WindDirection (+35 degree / -35 degree)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this alarm occurs, turbine will move to the position of wind direction
automatically. If turbine reaches the position, it will start to run automatically. 4. If this not happens then check the fixture of both the wind vane sensors 5. After that start the turbine and be happy
Elec_TestEndSwitch_TimeOutStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM117 1 0 4 10000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital inputs of the frequency converters are low
♦ Reason: During start up of the turbine, test limit switch is one of the tests conducted through program. During this test if 90 degree limit switch failed to touch at physical 90 degree
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Re-calibrate the blade and re-do the switch setting of the 90 degree switch if it is
OK then 5. Check the particular input loop from position encoder to all the frequency
converters 6. Replace the worned parts if required and reset the turbine and take the safety
speed 7. If you found OK then start the turbine and be happy
Mech_BrakeProgr3_Timeout Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM118 4 0 3 40000
♦ Place of the problem: Problem is related to the hub and nacelle
♦ Root Cause:
Alarm is called if the generator rpm is more than 100 rpm during brake program
♦ Reason:
After the turbine status 23, generator rpm should immediately reduced to less than 100 rpm
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the proper pitch out function of all 3 blades during brake program, If
OK then 4. By using service password, please check the parameters which is related to the
PID controller in the visualization 5. Check the gap setting of the generator speed sensor, if OK then 6. Check the functionality of generator speed sensor by moving the metal object in
front of that and observe the LED status. If OK then 7. Check for the loose connection from sensor to CNT 204 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_CableAutoUnwind
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM119 1 2 3 1000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the turbine starts to unwind the cable to release the twist
♦ Reason:
We will get the alarm when the measured value is greater than the high warn parameter AI_intern_Nacelle Drill (+900 degree / -900 degree)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this alarm occurs, turbine will move either in CW / CCW direction depending
upon the direction of twist to release the cable twist during low wind time. If it completes the untwisting then the turbine will start automatically.
4. No troubleshooting required for this alarm and be happy
Temp_Outdoor_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM120 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Outdoor
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_Outdoor (60 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Replace the worned parts if any 7. Start the turbine and be happy
Temp_Outdoor_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM121 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level of the Outdoor
♦ Reason: We will get the Alarm only if measured value is less than minimum stop level parameter Temp_Outdoor (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Replace the worned parts if any 7. Start the turbine and be happy
WindAvarage_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM122 2 0 3 0
♦ Place of the problem:
Problem is related to the nacelle
♦ Root Cause: This alarm is called when the measured value is greater than the high warn level
♦ Reason:
We will get the Alarm when measured value is above AI_intern_WindSpeed (24 m/s)
♦ Remedial Action:
1. This error is normally occurs due to high wind speed so it doesn’t require any troubleshooting
2. The turbine will start automatically if the measured wind speed is below the parameter and be happy
WindPeak_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM123 3 0 3 0
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
This alarm is called when the measured value is greater than the high stop level
♦ Reason:
We will get the Alarm when measured value is above AI_intern_WindSpeed (25 m/s)
♦ Remedial Action:
1. This error is normally occurs due to high wind speed so it doesn’t require any troubleshooting
2. The turbine will start automatically if the measured wind speed is below the parameter and be happy
PitchAccu1_Voltage_Low Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM125 1 0 3 1000
♦ Place of the problem: Problem is related to the hub panel
♦ Root Cause:
Problem with the battery voltage of blade 1
♦ Reason:
We will get the Alarm only if AI_Intern_PitchAccu_V1 value is lesser than the specified parameter (220V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the output of the battery charger unit (290V DC) in the nacelle control panel.
If it is OK then, 4. Switch OFF the 2F2 MCB which supplies 290V DC to hub panel 5. Make the hub lock and confirm that it has been made properly 6. Check the battery voltage in the corresponding terminal block as per the circuit. Multi
meter should read 290V DC approximately, if not then check the voltage of the individual battery cells and it should show 12V approx. If not then replace the particular battery bank.
7. After replacement of the battery bank, switch ON all the MCB’s and take the safety speed. If you found OK then start the turbine and be happy.
PitchAccu1_Voltage_Low warn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM126 0 0 3 1000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Problem with the battery voltage of blade 1
♦ Reason:
We will get the Alarm only if AI_Intern_PitchAccu_V1 value is lesser than the specified parameter (230V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the output of the battery charger unit (290V DC) in the nacelle control
panel. If it is OK then, 4. Switch OFF the 2F2 MCB which supplies 290V DC to hub panel 5. Make the hub lock and confirm that it has been made properly 6. Check the battery voltage in the corresponding terminal block as per the circuit.
Multi meter should read 290V DC approximately, if not then check the voltage of the individual battery cells and it should show 12V approx. If not then replace the particular battery bank.
7. After replacement of the battery bank, switch ON all the MCB’s and take the safety speed. If you found OK then start the turbine and be happy
PitchAccu2_Voltage_Low Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM127 1 0 3 1000
♦ Place of the problem: Problem is related to the hub panel
♦ Root Cause:
Problem with the battery voltage of blade 2
♦ Reason:
We will get the Alarm only if AI_Intern_PitchAccu_V2 value is lesser than the specified parameter (220V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the output of the battery charger unit (290V DC) in the nacelle control panel.
If it is OK then, 4. Switch OFF the 2F2 MCB which supplies 290V DC to hub panel 5. Make the hub lock and confirm that it has been made properly 6. Check the battery voltage in the corresponding terminal block as per the circuit. Multi
meter should read 290V DC approximately, if not then check the voltage of the individual battery cells and it should show 12V approx. If not then replace the particular battery bank.
7. After replacement of the battery bank, switch ON all the MCB’s and take the safety speed. If you found OK then start the turbine and be happy
PitchAccu2_Voltage_Low warn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM128 0 0 3 1000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Problem with the battery voltage of blade 2
♦ Reason:
We will get the Alarm only if AI_Intern_PitchAccu_V2 value is lesser than the specified parameter (230V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the output of the battery charger unit (290V DC) in the nacelle control
panel. If it is OK then, 4. Switch OFF the 2F2 MCB which supplies 290V DC to hub panel 5. Make the hub lock and confirm that it has been made properly 6. Check the battery voltage in the corresponding terminal block as per the circuit.
Multi meter should read 290V DC approximately, if not then check the voltage of the individual battery cells and it should show 12V approx. If not then replace the particular battery bank
7. After replacement of the battery bank, switch ON all the MCB’s and take the safety speed. If you found OK then start the turbine and be happy
PitchAccu3_Voltage_Low Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM129 1 0 3 1000
♦ Place of the problem: Problem is related to the hub panel
♦ Root Cause:
Problem with the battery voltage of blade 3
♦ Reason:
We will get the Alarm only if AI_Intern_PitchAccu_V3 value is lesser than the specified parameter (220V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the output of the battery charger unit (290V DC) in the nacelle control panel.
If it is OK then, 4. Switch OFF the 2F2 MCB which supplies 290V DC to hub panel 5. Make the hub lock and confirm that it has been made properly 6. Check the battery voltage in the corresponding terminal block as per the circuit. Multi
meter should read 290V DC approximately, if not then check the voltage of the individual battery cells and it should show 12V approx. If not then replace the particular battery bank.
7. After replacement of the battery bank, switch ON all the MCB’s and take the safety speed. If you found OK then start the turbine and be happy
PitchAccu3_Voltage_Low warn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM130 0 0 3 1000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Problem with the battery voltage of blade 3
♦ Reason: We will get the Alarm only if AI_Intern_PitchAccu_V3 value is lesser than the specified parameter (230V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the output of the battery charger unit (290V DC) in the nacelle control
panel. If it is OK then, 4. Switch OFF the 2F2 MCB which supplies 290V DC to hub panel 5. Make the hub lock and confirm that it has been made properly 6. Check the battery voltage in the corresponding terminal block as per the circuit.
Multi meter should read 290V DC approximately, if not then check the voltage of the individual battery cells and it should show 12V approx. If not then replace the particular battery bank
7. After replacement of the battery bank, switch ON all the MCB’s and take the safety speed. If you found OK then start the turbine and be happy
Pitch_Brake1_NotReleased
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM132 1 0 3 5000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 1 is low DIi_FB_Pitch Brake 1
♦ Reason: Missing of the 24V DC from the Pitch brake at frequency converter
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the operation of the pitch brake by pressing the corresponding pitch brake
contactor. If not OK then 5. Check the battery voltage in the corresponding terminal block as per the circuit.
Multi meter should read 290V DC approximately, if OK then 6. Check the condition of the diode, if OK then 7. Check the resistance value of the pitch brake coil, if OK then 8. Check the NO / NC contact of the pitch brake which is supplying FB signal to the
frequency converter 1. If OK then 9. Check the particular input of the frequency converter. 10. Replace the worned parts if required and reset the turbine and take the safety
speed 11. If you found OK then start the turbine and be happy
Pitch_Brake2_NotReleased
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM133 1 0 3 5000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 2 is low DIi_FB_Pitch Brake 2
♦ Reason: Missing of the 24V DC from the Pitch brake at frequency converter
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the operation of the pitch brake by pressing the corresponding pitch brake
contactor. If not OK then 5. Check the battery voltage in the corresponding terminal block as per the circuit.
Multi meter should read 290V DC approximately, if OK then 6. Check the condition of the diode, if OK then 7. Check the resistance value of the pitch brake coil, if OK then 8. Check the NO / NC contact of the pitch brake which is supplying FB signal to the
frequency converter 2. If OK then 9. Check the particular input of the frequency converter. 10. Replace the worned parts if required and reset the turbine and take the safety
speed 11. If you found OK then start the turbine and be happy
Pitch_Brake3_NotReleased
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM134 1 0 3 5000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 3 is low DIi_FB_Pitch Brake 3
♦ Reason: Missing of the 24V DC from the Pitch brake at frequency converter
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the operation of the pitch brake by pressing the corresponding pitch brake
contactor. If not OK then 5. Check the battery voltage in the corresponding terminal block as per the circuit.
Multi meter should read 290V DC approximately, if OK then 6. Check the condition of the diode, if OK then 7. Check the resistance value of the pitch brake coil, if OK then 8. Check the NO / NC contact of the pitch brake which is supplying FB signal to the
frequency converter 3. If OK then 9. Check the particular input of the frequency converter. 10. Replace the worned parts if required and reset the turbine and take the safety
speed 11. If you found OK then start the turbine and be happy
Pitch_FreqConvPitch1_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM135 4 4 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm will be detected by the frequency converter 1
♦ Reason: Missing of the signals at the frequency converter 1
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Initially check for any abnormalities inside the hub visually also check the
tightness of the circuit connections inside the hub panel if found ok then 5. Completely check all the incoming supply to the frequency converter 1 if found
ok then 6. Check the cable continuity between the frequency converter and pitch motor if
found ok then 7. Check the ohmic value of the pitch motor temperature sensor 8. Check the functionality of the resolver including the cable connections 9. Check all the inputs of the frequency converter as per the circuit 10. Check for the battery leakage in all the battery banks 11. Also check for the proper alignment of slip ring brushes including CAN
connections 12. If all above check points are found ok then replace the frequency converter 13. Take the safety speed if you found ok then 14. Start the turbine and be happy
Pitch_FreqConvPitch2_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM136 4 4 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm will be detected by the frequency converter 2
♦ Reason: Missing of the signals at the frequency converter 2
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Initially check for any abnormalities inside the hub visually also check the
tightness of the circuit connections inside the hub panel if found ok then 5. Completely check all the incoming supply to the frequency converter 2 if found
ok then 6. Check the cable continuity between the frequency converter and pitch motor if
found ok then 7. Check the ohmic value of the pitch motor temperature sensor 8. Check the functionality of the resolver including the cable connections 9. Check all the inputs of the frequency converter as per the circuit 10. Check for the battery leakage in all the battery banks 11. Also check for the proper alignment of slip ring brushes including CAN
connections 12. If all above check points are found ok then replace the frequency converter 13. Take the safety speed if you found ok then 14. Start the turbine and be happy
Pitch_FreqConvPitch3_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM137 4 4 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm will be detected by the frequency converter 3
♦ Reason: Missing of the signals at the frequency converter 3
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Initially check for any abnormalities inside the hub visually also check the
tightness of the circuit connections inside the hub panel if found ok then 5. Completely check all the incoming supply to the frequency converter 3 if found
ok then 6. Check the cable continuity between the frequency converter and pitch motor if
found ok then 7. Check the ohmic value of the pitch motor temperature sensor 8. Check the functionality of the resolver including the cable connections 9. Check all the inputs of the frequency converter as per the circuit 10. Check for the battery leakage in all the battery banks 11. Also check for the proper alignment of slip ring brushes including CAN
connections 12. If all above check points are found ok then replace the frequency converter 13. Take the safety speed if you found ok then 14. Start the turbine and be happy
Pitch_LubricationStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM138 1 0 3 86400000
♦ Place of the problem: Problem is related to the Turbine
♦ Root Cause:
This alarm is called when there is no break down for last 24hrs
♦ Remedial Action:
1. This error is normally occurs due to continuous running of turbine 2. This alarm is basically for Pitch lubrication so it will occur once in every 24hrs
without any breakdown in the turbine 3. After lubricating the pitch the turbine will start automatically
Pitch_WatchdogCSS
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM139 4 4 3 1000
♦ Place of the problem: Problem is related to the controller
♦ Root Cause:
This alarm is called when there is run time error in CSS tasks
♦ Remedial Action:
1. Manually save the data from the CF card 2. Replace the M1 controller with new one 3. Copy the saved data to the new M1 controller 4. Start the turbine and be happy
Elec_MFR_DFDT
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM140 1 4 2 0
♦ Place of the problem: Problem is related to the bottom panel and particularly for MFR 1371 (Multi Functional Relay) unit
♦ Root Cause:
Alarm is called if the digital input of the DIO 264 module is low
♦ Reason:
Missing of the 24V DC from the MFR1371 to DIO 264 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Check the fluctuation in grid frequency. If there is no fluctuation then 4. Check the 24V DC output from the MFR 1371 5. Here you should get 24V DC if not then replace the MFR 1371 grid control monitor 6. Start the turbine and be happy
Pitch_AccuChargerStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM142 1 0 3 10000
♦ Place of the problem: Problem is related to the control panel
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is high
♦ Reason:
We will get the alarm when signal DI_PitchAccuCharger_OK is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the output of the battery charger unit (290V DC) in the nacelle control
panel. It should be minimum 280V DC under load condition.
If the voltage is not OK then
4. Wait for 15 to 10 minutes for charging of the batteries. If there is no improvement in voltage then
5. Switch OFF the 2F2 MCB which supplies 290V DC to hub panel 6. Make the hub lock and confirm that it has been made properly 7. Check the battery voltage of all battery banks in the corresponding terminal
block as per the circuit. Multi meter should read 290V DC approximately, if not then check the voltage of the individual battery cells and it should show 12V approx. If not then replace the particular battery bank.
8. After replacement of the battery bank, switch ON all the MCB’s and take the safety speed. If you found OK then start the turbine and be happy
If the voltage is OK then
9. Check the NO contact of the battery charger and the functionality of the DIO module for the particular input
10. Replace the worned parts if required 11. After replacement, switch ON all the MCB’s and take the safety speed. If you
found OK then start the turbine and be happy
Elec_I1_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) 145 4 0 3 0
♦ Place of the problem: Problem is related to the Power Panel, Nacelle and Hub
♦ Root Cause: Alarm is called if there is abnormal Current in R Phase
♦ Reason: If the measured value is greater than the high stop parameter AI_intern_I1 (2500 A)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the pitch angle calibration of all three Blades 4. Check for the loose connection in CT wiring as in circuit up to MFR 1371 unit 5. Replace the worned parts if required 6. Start the turbine and be happy
Elec_I2_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM146 4 0 3 0
♦ Place of the problem: Problem is related to the Power Panel, Nacelle and Hub
♦ Root Cause: Alarm is called if there is abnormal Current in Y Phase
♦ Reason: If the measured value is greater than the high stop parameter AI_intern_I2 (2500 A)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the pitch angle calibration of all three Blades 4. Check for the loose connection in CT wiring as in circuit up to MFR 1371 unit 5. Replace the worned parts if required 6. Start the turbine and be happy
Elec_I3_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM147 4 0 3 0
♦ Place of the problem: Problem is related to the Power Panel, Nacelle and Hub
♦ Root Cause: Alarm is called if there is abnormal Current in B Phase
♦ Reason: If the measured value is greater than the high stop parameter AI_intern_I3 (2500 A)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the pitch angle calibration of all three Blades 4. Check for the loose connection in CT wiring as in circuit up to MFR 1371 unit 5. Replace the worned parts if required 6. Start the turbine and be happy
Mech_NacelleDrill_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM148 1 4 3 1000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if there is abnormal twist in cable
♦ Reason:
We will get the alarm when the measured value is greater than the low & high stop parameter AI_intern_Nacelle Drill (+925 degree / -925 degree)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs, first we have to decide for which direction we
have to do the manual yawing to reduce the cable twist to 0 degree 4. Then start the yawing and bring the cable twist to 0 degree 5. After this start the turbine and be happy
Elec_ReactivePowerHigh_Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM149 1 0 3 240000
♦ Place of the problem: Problem is related to the Power Panel
♦ Root Cause: Alarm is called if there is abnormal consumption of reactive power
♦ Reason: If the measured value is greater than the high stop parameter AI_intern_ReactivePower (200 kVArh)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter
This error can happen during
Cut in time
3. After successful grid synchronization turbine must go to the production mode. If this doesn’t happen then there will be more reactive power consumption
4. In this condition we have to completely check the soft starter loop as per the circuit Running time
5. The possibility for this error during running time very less 6. If it occurs then check the proper function of DIO module, PLC relays and
capacitor contactors 7. Replace the worned parts if required 8. Start the turbine and be happy
Mech_Generator_OverSpeedStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM150 3 0 3 0
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the measured value is greater than high warn parameter
♦ Reason:
We will get the alarm when measured value is greater than AI_intern_SpeedGenerator (1700 rpm)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs find whether generator rpm increases during
Cutin Time
4. Check the complete functionality of the IXYS soft starter i.e. if there is prolonged synchronization then there is a possibility for rpm to increase drastically
5. Also check the gap setting for the Generator speed sensor
Running Time
6. Check the gap setting for the Generator speed sensor 7. Check whether the pitch angle of all three blades are same using logs 8. Replace the worned parts if required 9. Start the turbine and keenly observe for corresponding rpm value if found OK be
happy
Temp_CapPanel_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM151 1 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause:
If there is any temperature decrease below the standard level in the Capacitor Panel
♦ Reason: We will get the Alarm only if measured value is less than minimum stop level parameter Temp_BottomCapSection (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the function of Panel heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L1_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM152 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Generator Winding (L1)
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_G1L1 (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the function of generator heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L1_LowWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM153 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Generator Winding (L1)
♦ Reason:
We will get the Alarm only if measured value is less than minimum warn level parameter Temp_G1L1 (0 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the function of generator heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L2_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM154 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Generator Winding (L2)
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_G1L1 (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the function of generator heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L2_LowWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM155 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Generator Winding (L2)
♦ Reason:
We will get the Alarm only if measured value is less than minimum warn level parameter Temp_G1L2 (0 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the function of generator heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L3_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM156 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Generator Winding (L3)
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_G1L3 (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the function of generator heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_G1L3_LowWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM157 0 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Generator Winding (L3)
♦ Reason:
We will get the Alarm only if measured value is less than minimum warn level parameter Temp_G1L3 (0 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the function of generator heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_CabinetTop_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM158 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Top panel
♦ Reason: We will get the Alarm only if measured value is less than minimum stop level parameter Temp_CabinetTopBox (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the function of Panel heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_CabinetTop_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM159 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Top panel
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_CabinetTopBox (60 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the proper function of the cooling fans 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_Nacelle_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM163 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Nacelle
♦ Reason: We will get the Alarm only if measured value is less than minimum stop level parameter Temp_Nacelle (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Replace the worned parts if any 7. Start the turbine and be happy
WireBreak_Speed_RotFR
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM165 1 0 3 0
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break / FR1 monitor malfunction
♦ Reason: We will get the alarm when there is open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the functionality of FR1 monitor output (4-20mA) 4. Also check the functionality of AIO288 module (for the corresponding input) 5. Check for the wire break between FR1 monitor to AIO288 module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for corresponding rpm value if found OK be
happy
WireBreak_WindSpeed1
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM166 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the functionality of Anemometer1 output (4-20mA) 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between Anemometer1 to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for WindSpeed1 value if found OK be happy
WireBreak_WindSpeed2
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM167 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the functionality of Anemometer2 output (4-20mA) 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between Anemometer2 to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for WindSpeed2 value if found OK be happy
WireBreak_WindVane1
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM168 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the functionality of Windvane1 output (4-20mA) 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between Windvane1 to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for WindDirection1 value if found OK be
happy
WireBreak_WindVane2
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM169 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the functionality of Windvane2 output (4-20mA) 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between Windvane2 to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for WindDirection2 value if found OK be
happy
WireBreak_GearBox_HSS_DE
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM170 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of AIO288 module (for the corresponding input) 5. Check for the wire break between sensor to AIO288 module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_G1L1
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM172 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_G1L2
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM173 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_G1L3
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM174 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_GearBox_HSS_NDE
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM178 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of AIO288 module (for the corresponding input) 5. Check for the wire break between sensor to AIO288 module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_GearOilSump
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM179 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of AIO288 module (for the corresponding input) 5. Check for the wire break between sensor to AIO288 module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_GenBearingDE
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM180 1 0 3 1000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_GenBearingNDE
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM181 1 0 3 1000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_MainBearing
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM182 1 0 3 1000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_Temp_GearBox_IMS_DE
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM183 1 0 3 1000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_Nacelle
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM184 1 0 3 1000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_Outdoor
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM185 1 0 3 1000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of PTAI module (for the corresponding input) 5. Check for the wire break between sensor to PTAI module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
Temp_GearBox_IMS_NDE_Warn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM187 0 0 5 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gearbox intermediate section in the non driven end
♦ Reason:
We will get the Alarm only if measured value is greater than maximum warn level parameter Temp_GearBox_IMS_NDE (98 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication inside the
gear box intermediate section in the non driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_PowerPanel_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM188 1 0 5 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause:
If there is any abnormal temperature rise in the Power section
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_PowerSection (60 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the proper function of the cooling fans 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_PowerPanel_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM190 1 0 5 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause:
If there is any temperature decrease below standard level in the power section
♦ Reason: We will get the Alarm only if measured value is less than minimum stop level parameter Temp_PowerSection (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the proper function of the Panel heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_ControlPanel_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM191 1 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause:
If there is any abnormal temperature rise in the Control Section
♦ Reason: We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_ControlSection (60 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the proper function of the cooling fans 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_ControlPanel_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM193 1 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause:
If there is any temperature decrease below the standard level in the Control Section
♦ Reason: We will get the Alarm only if measured value is less than minimum stop level parameter Temp_ControlSection (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the AIO 288 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular AIO 288 pin if found ok then 6. Check for the proper function of the panel heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Elec_VoltageU1_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM194 1 0 3 100
♦ Place of the problem: Problem is related to the Grid Supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the voltage in R Phase is abnormal
♦ Reason: If the measured voltage is greater than the high stop parameter of AI_Intern_U1 (790 V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs during grid failure then it is normal (No trouble shooting
required) 4. If this error occurs without grid failure then we have to 5. Check the incoming voltage from the HT transformer secondary. If the measured
value is above our parameter value then the transformer tapping should be reduced to the rated voltage. If the incoming voltage is normal then
6. Check the 690V AC at the MFR 1371 unit as per the circuit 7. Replace the worned parts if required (MPCB / HRC Fuses) 8. Start the turbine and be happy
Elec_VoltageU2_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM195 1 0 3 100
♦ Place of the problem: Problem is related to the Grid Supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the voltage in Y Phase is abnormal
♦ Reason: If the measured voltage is greater than the high stop parameter of AI_Intern_U2 (790 V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs during grid failure then it is normal (No trouble shooting
required) 4. If this error occurs without grid failure then we have to 5. Check the incoming voltage from the HT transformer secondary. If the measured
value is above our parameter value then the transformer tapping should be reduced to the rated voltage. If the incoming voltage is normal then
6. Check the 690V AC at the MFR 1371 unit as per the circuit 7. Replace the worned parts if required (MPCB / HRC Fuses) 8. Start the turbine and be happy
Elec_VoltageU3_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM196 1 0 3 100
♦ Place of the problem: Problem is related to the Grid Supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the voltage in B Phase is abnormal
♦ Reason: If the measured voltage is greater than the high stop parameter of AI_Intern_U3 (790 V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs during grid failure then it is normal (No trouble shooting
required) 4. If this error occurs without grid failure then we have to 5. Check the incoming voltage from the HT transformer secondary. If the measured
value is above our parameter value then the transformer tapping should be reduced to the rated voltage. If the incoming is normal voltage then
6. Check the 690V AC at the MFR 1371 unit as per the circuit 7. Replace the worned parts if required (MPCB / HRC Fuses) 8. Start the turbine and be happy
Elec_VoltageU1_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM197 1 0 3 100
♦ Place of the problem: Problem is related to the Grid Supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the voltage in R Phase is abnormal
♦ Reason: If the measured voltage is lesser than the low stop parameter of AI_Intern_U1 (590 V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs during grid failure then it is normal (No trouble shooting
required) 4. If this error occurs without grid failure then we have to 5. Check the incoming voltage from the HT transformer secondary. If the measured
value is below our parameter value then the transformer tapping should be increased to the rated voltage. If the incoming voltage is normal then
6. Check the 690V AC at the MFR 1371 unit as per the circuit 7. Replace the worned parts if required (MPCB / HRC Fuses) 8. Start the turbine and be happy
Elec_VoltageU2_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM198 1 0 3 100
♦ Place of the problem: Problem is related to the Grid Supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the voltage in Y Phase is abnormal
♦ Reason: If the measured voltage is lesser than the low stop parameter of AI_Intern_U2 (590 V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs during grid failure then it is normal (No trouble shooting
required) 4. If this error occurs without grid failure then we have to 5. Check the incoming voltage from the HT transformer secondary. If the measured
value is below our parameter value then the transformer tapping should be increased to the rated voltage. If the incoming voltage is normal then
6. Check the 690V AC at the MFR 1371 unit as per the circuit 7. Replace the worned parts if required (MPCB / HRC Fuses) 8. Start the turbine and be happy
Elec_VoltageU3_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM199 1 0 3 100
♦ Place of the problem: Problem is related to the Grid Supply / MFR 1371 (Multi Functional Relay)
♦ Root Cause: Alarm is called if the voltage in B Phase is abnormal
♦ Reason: If the measured voltage is lesser than the low stop parameter of AI_Intern_U3 (590 V)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs during grid failure then it is normal (No trouble shooting
required) 4. If this error occurs without grid failure then we have to 5. Check the incoming voltage from the HT transformer secondary. If the measured
value is below our parameter value then the transformer tapping should be increased to the rated voltage. If the incoming voltage is normal then
6. Check the 690V AC at the MFR 1371 unit as per the circuit 7. Replace the worned parts if required (MPCB / HRC Fuses) 8. Start the turbine and be happy
Temp_GearBox_IMS_DE_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM200 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Gearbox intermediate section in the driven end
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_GearBox_IMS_DE (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the proper function of gear box heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Pitch_Angle1_SPDifference Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM204 1 0 3 10000
♦ Place of the problem:
Problem is related to hub panel
♦ Root Cause: We will get the alarm when actual angle of the blade 1 is differs from the controller set point (+2 / - 2 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check for the abnormalities inside hub (position encoder fixture, abnormal smelling /
loose connections inside hub panel and pitch pinion fixture), if found OK then, 5. Check for the pitch motor temperature, if it is found over temperature then check the
pitch brake loop as in circuit diagram. 6. Replace the worned parts if required (MCB, relay, contactor, diode, pitch brake or
frequency converter) 7. After replacement check for the proper function of all 3 blades using manual
pitching. 8. If you found OK be happy
Pitch_Angle2_SPDifference Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM205 1 0 3 10000
♦ Place of the problem: Problem is related to hub panel
♦ Root Cause: We will get the alarm when actual angle of the blade 2 is differs from the controller set point (+2 / - 2 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check for the abnormalities inside hub (position encoder fixture, abnormal smelling /
loose connections inside hub panel and pitch pinion fixture), if found OK then, 5. Check for the pitch motor temperature, if it is found over temperature then check the
pitch brake loop as in circuit diagram. 6. Replace the worned parts if required (MCB, relay, contactor, diode, pitch brake or
frequency converter) 7. After replacement check for the proper function of all 3 blades using manual pitching 8. If you found OK be happy
Pitch_Angle3_SPDifference Stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM206 1 0 3 10000
♦ Place of the problem: Problem is related to hub panel
♦ Root Cause: We will get the alarm when actual angle of the blade 3 is differs from the controller set point (+2 / - 2 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check for the abnormalities inside hub (position encoder fixture, abnormal smelling /
loose connections inside hub panel and pitch pinion fixture), if found OK then, 5. Check for the pitch motor temperature, if it is found over temperature then check the
pitch brake loop as in circuit diagram. 6. Replace the worned parts if required (MCB, relay, contactor, diode, pitch brake or
frequency converter) 7. After replacement check for the proper function of all 3 blades using manual pitching 8. If you found OK be happy
Pitch_SafetyTestActiv
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM207 1 0 3 604800000
♦ Place of the problem: Problem is related to the Turbine
♦ Root Cause: This alarm is called when once in every week (168 hrs) as per parameter
♦ Remedial Action:
1. This error is normally occurs to make a self test of the batteries in all battery banks
2. After making the battery test the turbine will automatically start only if there is no battery related errors during battery test
3. If any error occurs troubleshoot those individually as per circuit otherwise the turbine will not start
Temp_MainBearing_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM208 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Main bearing
♦ Reason: We will get the Alarm only if measured value is less than minimum stop level parameter Temp_Hub Bearing (-10 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Replace the worned parts if any 7. Start the turbine and be happy
Temp_GeneratorBearing_NDE_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM209 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Generator bearing in the non driven end
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_GeneratorBearing_NDE (-5 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Replace the worned parts if any 7. Start the turbine and be happy
Elec_LightningProtection_Topwarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM210 0 0 3 5000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We will get the alarm when DI_LightningProtection Top is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the loose connection from DIO module to the DHEN’port (Lightning
arrester Guards) 4. Check whether DHEN’port has failed to function 5. Check the 24V DC from the NO contact of the DHEN’port to DIO module 6. Replace the worned parts if required 7. Start the turbine and be happy
Elec_ManStopBottom
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM211 1 0 3 0
♦ Root Cause:
This alarm is called when we press the man STOP button in bottom panel
♦ Remedial Action:
1. We use this facility to work in the turbine under stopped condition if any 2. Turbine will start only when we press the START button in the bottom panel
Pitch_CAN1ComFail
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM212 4 0 3 1000
♦ Place of the problem: Problem is related to the hub and nacelle
♦ Root Cause:
Failure in the CAN communication with frequency converter 1
♦ Reason: We will get if there is any communication problem between CM202 module and frequency converter 1
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check for the loose connection in the CAN plug at CM202 module as well as at
the frequency converter 1. If ok then 5. Check the resistance value of the end resistor and it should be 120 ohm, if OK
then 6. Check for the misalignment of the slip ring brushes 7. check the operating supply (24V DC) of the frequency converter 1, if OK then 8. Check the functionality of the CM 202 module 9. Replace the worned parts if required and reset the turbine and take the safety
speed 10. If you found OK then start the turbine and be happy
Pitch_CAN2ComFail
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM213 4 0 3 1000
♦ Place of the problem: Problem is related to the hub and nacelle
♦ Root Cause:
Failure in the CAN communication with frequency converter 2
♦ Reason: We will get if there is any communication problem between CM202 module and frequency converter 2
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check for the loose connection in the CAN plug at CM202 module as well as at
the frequency converter 2. If ok then 5. Check the resistance value of the end resistor and it should be 120 ohm, if OK
then 6. Check for the misalignment of the slip ring brushes 7. check the operating supply (24V DC) of the frequency converter 2, if OK then 8. Check the functionality of the CM 202 module 9. Replace the worned parts if required and reset the turbine and take the safety
speed 10. If you found OK then start the turbine and be happy
Pitch_CAN3ComFail
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM214 4 0 3 1000
♦ Place of the problem: Problem is related to the hub and nacelle
♦ Root Cause: Failure in the CAN communication with frequency converter 3
♦ Reason: We will get if there is any communication problem between CM202 module and frequency converter 3
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check for the loose connection in the CAN plug at CM202 module as well as at
the frequency converter 3. If ok then 5. Check the resistance value of the end resistor and it should be 120 ohm, if OK
then 6. Check for the misalignment of the slip ring brushes 7. check the operating supply (24V DC) of the frequency converter 3, if OK then 8. Check the functionality of the CM 202 module 9. Replace the worned parts if required and reset the turbine and take the safety
speed 10. If you found OK then start the turbine and be happy
FSS_CANFail
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM215 2 0 3 1000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Failure in the CAN communication with SFS Module
♦ Reason: We will get if there is any communication problem between CM202 module and SFS module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the loose connection in the CAN plug at CM202 module as well as at
the SFS CAN plug. If ok then 4. Check the resistance value of the end resistor and it should be 120 ohm, if OK
then 5. Check the operating supply (24V DC) of the SFS module, if OK then 6. Check the functionality of the CM 202 module 7. Replace the worned parts if required and reset the turbine 8. Start the turbine and be happy
Temp_GeneratorBearing_DE_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM218 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Generator bearing in the driven end
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_GeneratorBearing_DE (-5 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Replace the worned parts if any 7. Start the turbine and be happy
Temp_GearBox_HSS_DE_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM219 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Gearbox High speed shaft section in the driven end
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_GearBox_HSS_DE (5 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the proper function of gear box heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Mech_RotorLockedStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM221 4 0 3 0
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_RotorLocked high when there is no rotor lock applied in the turbine
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Normally when we work in hub we will put hub lock so that time we will get this
alarm 4. So while removing hub lock we should get the DI signal high back, if not 5. Check for the loose connection from DIO module to the sensor if found OK then 6. Check the gap setting of the sensor if OK then 7. Check whether the sensor senses properly by manual metal object movement 8. Replace the worned parts if required 9. Start the turbine and be happy
Elec_MFR 1371_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM222 1 0 3 1000
♦ Place of the problem: Problem is related to the bottom panel and particularly for MFR 1371 (Multi Functional Relay) unit
♦ Root Cause:
Alarm is called if there is problem in CAN communication
♦ Reason:
Error in communication with CM 202 module
♦ Remedial Action:
2. Using M-Manager, Take the fast log and event log of the particular alarm 3. Take the necessary safety items, circuit diagram, tools including measuring devices
like multi meter 4. Check the operating voltage (24V DC) of the MFR 1371, if OK then 5. Check the CAN communication between MFR 1371 and CM202 module if not then
replace CM202 / MFR 1371 unit 6. Start the turbine and be happy
Wind_Lowwind_NoAzimuth
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM223 0 1 3 30000
♦ Root Cause:
This alarm is called when there is low wind less than the turbine start wind
♦ Remedial Action:
1. No remedial action required as the wind speed increases this alarm will auto reset
Elec_FB_PowerSupplyPitch
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM224 1 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason: We will get the alarm DI_FB_PowerSupplyPitch is low when DO_PowerSupplyPitch is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check for the loose connection from DIO module to Power supply pitch contactor 4. Check the functionality of DIO module, PLC Relay and the power supply pitch
contactor 5. Check the NO contact of PLC relay and power supply pitch contactor for feed
back 6. Replace the worned parts if required 7. Start the turbine and be happy
Mech_WindSpeed2_DefectWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM225 0 0 3 60000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Problem with the wind speed which is measured by anemometer 2
♦ Reason: We will get the Alarm only if there is no change in the measured wind speed
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the mechanical moment of the wind speed 2 / wind speed sensor. If OK
then 4. Check for the loose connection at the connectors as per the circuit 5. Check the operating supply (24V DC) of the wind speed 2, if OK then 6. Check the output of the wind speed 2. If OK then 7. Check the functionality of the PTAI 216 module 8. Replace the worned parts if required 9. Start the turbine and be happy
Mech_RmpObserver_OverSpeedStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM226 2 0 3 0
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the measured value is greater than high stop parameter
♦ Reason:
We will get the alarm when measured value is greater than AI_intern_SpeedRotFR (19 rpm)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs find whether Rotor_FR rpm increases during
Cutin Time
4. Check the complete functionality of the IXYS soft starter i.e. if there is prolonged synchronization then there is a possibility for rpm to increase drastically
5. Also check the gap setting for the Rotor_FR speed sensor
Running Time
6. Check the gap setting for the Rotor_FR speed sensor 7. Check whether the pitch angle of all three blades are same using logs 8. Replace the worned parts if required 9. Start the turbine and keenly observe for corresponding rpm value if found OK be
happy
Elec_UPSBattChange
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM228 1 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason: We will get the alarm when DI_UPS_BatteryChange signal is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. If this error occurs after resuming grid then we have to check the battery
condition of the UPS if found OK then 4. Check for the loose connection from UPS to DIO 264 module 5. Replace the worned parts if required 6. Start the turbine and be happy
Elec_ManStopTop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM229 1 0 3 500
♦ Root Cause:
This alarm is called when we press the man STOP button in top panel
♦ Remedial Action:
1. We use this facility to work in the turbine under stopped condition if any 2. Turbine will start only when we press the START button in the top panel
Pitch_EndSwitch1_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM231 1 0 3 5000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 1 is high
♦ Reason: We will get this alarm when DIi_Pit1_EndSwitch is high when the actual angle of the blade 1 is less than 80 degree
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Re-calibrate the blade and re-do the switch setting of the 90 degree switch if it is
OK then 5. Check the particular input loop from position encoder to frequency converter 1 6. Replace the worned parts if required and reset the turbine and take the safety
speed 7. If you found OK then start the turbine and be happy
Pitch_EndSwitch2_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM232 1 0 3 5000
♦ Place of the problem: ♦
Problem is related to the hub
♦ Root Cause: Alarm is called if the digital input of the frequency converter 2 is high
♦ Reason: We will get this alarm when DIi_Pit2_EndSwitch is high when the actual angle of the blade 2 is less than 80 degree
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Re-calibrate the blade and re-do the switch setting of the 90 degree switch if it is
OK then 5. Check the particular input loop from position encoder to frequency converter 2 6. Replace the worned parts if required and reset the turbine and take the safety
speed 7. If you found OK then start the turbine and be happy
Pitch_EndSwitch3_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM233 1 0 3 5000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 3 is high
♦ Reason: We will get this alarm when DIi_Pit3_EndSwitch is high when the actual angle of the blade 3 is less than 80 degree
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Re-calibrate the blade and re-do the switch setting of the 90 degree switch if it is
OK then 5. Check the particular input loop from position encoder to frequency converter 3 6. Replace the worned parts if required and reset the turbine and take the safety
speed 7. If you found OK then start the turbine and be happy
Pitch_EndSwitch1_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM234 1 0 3 10000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 1 is low
♦ Reason: We will get this alarm when DIi_Pit1_EndSwitch is low when the actual angle of the blade 1 is 90 degree
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Re-calibrate the blade and re-do the switch setting of the 90 degree switch if it is
OK then 5. Check the particular input loop from position encoder to frequency converter 1 6. Replace the worned parts if required and reset the turbine and take the safety
speed 7. If you found OK then start the turbine and be happy
Pitch_EndSwitch2_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM235 1 0 3 10000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 2 is low
♦ Reason: We will get this alarm when DIi_Pit2_EndSwitch is low when the actual angle of the blade 2 is 90 degree
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Re-calibrate the blade and re-do the switch setting of the 90 degree switch if it is
OK then 5. Check the particular input loop from position encoder to frequency converter 2 6. Replace the worned parts if required and reset the turbine and take the safety
speed 7. If you found OK then start the turbine and be happy
Pitch_EndSwitch3_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM236 1 0 3 10000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 3 is low
♦ Reason: We will get this alarm when DIi_Pit3_EndSwitch is low when the actual angle of the blade 3 is 90 degree
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Re-calibrate the blade and re-do the switch setting of the 90 degree switch if it is
OK then 5. Check the particular input loop from position encoder to frequency converter 3 6. Replace the worned parts if required and reset the turbine and take the safety
speed 7. If you found OK then start the turbine and be happy
Elec_FB_GearOil_PumpHighLow
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM237 1 0 3 500
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_GearOil_PumpHighLow high when DO_ GearOil_PumpHigh / DO_ GearOil_PumpLow is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the log find whether this error occurs for pump high /
pump low 4. Check for the loose connection from DIO module to Gear oil filter motor if found
OK then 5. Check the input supply(690V AC) for the MPCB and its NO contact for feedback if
OK then 6. Check the functionality of the PLC relay as well as contactor and its NO contact if
found OK 7. Check the corresponding motor winding values as per standard 8. Replace the worned parts if required 9. Start the turbine and be happy
WireBreak_CabinetTop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM238 1 0 3 500
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of AIO288 module (for the corresponding input) 5. Check for the wire break between sensor to AIO288 module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_BottomControlSection
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM239 1 0 3 500
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of AIO288 module (for the corresponding input) 5. Check for the wire break between sensor to AIO288 module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_BottomCapSection
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM240 1 0 3 500
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of AIO288 module (for the corresponding input) 5. Check for the wire break between sensor to AIO288 module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
WireBreak_BottomPowerSection
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM241 1 0 3 500
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called when there is a wire break
♦ Reason: We will get the alarm when there is an open circuit
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the resistance value of the temperature sensor 4. Also check the functionality of AIO288 module (for the corresponding input) 5. Check for the wire break between sensor to AIO288 module 6. Replace the worned parts if required 7. Start the turbine and keenly observe for temperature value if found OK be happy
SE_WatchdogCSF
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM242 0 0 3 120000
♦ Place of the problem: Problem is related to the controller
♦ Root Cause:
This alarm is called when there is an internal error in the controller
♦ Remedial Action:
1. Manually save the data from the CF card 2. Replace the M1 controller with new one 3. Copy the saved data to the new M1 controller 4. Start the turbine and be happy
Pitch_ExtPowerSupply24VStopp_Conv1
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM243 2 0 3 10000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 1 is low DIi_Pit1_ExternPowerSupply
♦ Reason: Missing of the 24V DC from the DC to DC converter (290V DC / 24V DC) of blade 1
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the 290V DC at the input of the DC to DC converter. If ok then 5. Check the 24V DC at the NO contact of the DC to DC converter. If OK then 6. Check the 24V DC at the particular input of the frequency converter 7. Replace the worned parts if required and reset the turbine and take the safety
speed 8. If you found OK then start the turbine and be happy
Pitch_ExtPowerSupply24VStopp_Conv2
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM244 2 0 3 10000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 2 is low DIi_Pit2_ExternPowerSupply
♦ Reason: Missing of the 24V DC from the DC to DC converter (290V DC / 24V DC) of blade 2
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the 290V DC at the input of the DC to DC converter. If ok then 5. Check the 24V DC at the NO contact of the DC to DC converter. If OK then 6. Check the 24V DC at the particular input of the frequency converter 7. Replace the worned parts if required and reset the turbine and take the safety
speed 8. If you found OK then start the turbine and be happy
Pitch_ExtPowerSupply24VStopp_Conv3
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM245 2 0 3 10000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 3 is low DIi_Pit3_ExternPowerSupply
♦ Reason: Missing of the 24V DC from the DC to DC converter (290V DC / 24V DC) of blade 3
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Check the 290V DC at the input of the DC to DC converter. If ok then 5. Check the 24V DC at the NO contact of the DC to DC converter. If OK then 6. Check the 24V DC at the particular input of the frequency converter 7. Replace the worned parts if required and reset the turbine and take the safety
speed 8. If you found OK then start the turbine and be happy
RS_BottomServiceStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM246 1 0 3 1000
♦ Root Cause:
This alarm is called when we switch on the service stop button in bottom panel
♦ Remedial Action:
1. We use this facility to work in the turbine under stopped condition if any 2. Turbine will start only when we switch off the service button
Elec_FB_GearBox_Heating
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM247 1 0 3 500
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_GearBox_Heating high when DO_ GearBox_Heating is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to Gearbox heater if
found OK then 4. Check the input supply(690V AC) for the MPCB and its NO contact for feedback if
OK then 5. Check the functionality of the PLC relay as well as contactor and its NO contact if
found OK 6. Check the resistance value of the heater 7. Replace the worned parts if required 8. Start the turbine and be happy
Pitch_EndSwitch_5GradNeg_Conv1
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM248 2 0 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 1 is high
♦ Reason: We will get this alarm when DIi_Pit1_LimitSwitch_5Grad is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Kindly make a keen analysis for which reason the blade moves to – 5 degree by
using the fast log and event log (It is important to be done before calibration) 5. Re-calibrate the blade and re-do the switch setting of the -5 degree if it is OK
then 6. Check the particular input loop from position encoder to frequency converter 1 7. Replace the worned parts if required and reset the turbine and take the safety
speed 8. If you found OK then start the turbine and be happy
Pitch_EndSwitch_5GradNeg_Conv2
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM249 2 0 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 2 is high
♦ Reason: We will get this alarm when DIi_Pit2_LimitSwitch_5Grad is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Kindly make a keen analysis for which reason the blade moves to – 5 degree by
using the fast log and event log (It is important to be done before calibration) 5. Re-calibrate the blade and re-do the switch setting of the -5 degree if it is OK
then 6. Check the particular input loop from position encoder to frequency converter 2 7. Replace the worned parts if required and reset the turbine and take the safety
speed 8. If you found OK then start the turbine and be happy
Pitch_EndSwitch_5GradNeg_Conv3
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM250 2 0 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital input of the frequency converter 3 is high
♦ Reason: We will get this alarm when DIi_Pit3_LimitSwitch_5Grad is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Kindly make a keen analysis for which reason the blade moves to – 5 degree by
using the fast log and event log (It is important to be done before calibration) 5. Re-calibrate the blade and re-do the switch setting of the -5 degree if it is OK
then 6. Check the particular input loop from position encoder to frequency converter 3 7. Replace the worned parts if required and reset the turbine and take the safety
speed 8. If you found OK then start the turbine and be happy
RS_Pitch_manuell
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM251 0 0 5 0
♦ Root Cause:
This alarm is called when we press the Pitch Manual button in visualization or by changing the parameter (108 – SwitchmanualPitch) to 1 in WT305
♦ Remedial Action:
1. We use this facility to pitch three blades individually as per our requirement by using the following parameters
→ 109 - P_PitAlphaMan1 → 110 - P_PitAlphaMan2 → 111 - P_PitAlphaMan3
2. Turbine will start only when we again press the Pitch Manual button or by
changing the parameter (108) back to 0 in WT305
RS_Turbine_manuell
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM252 0 0 5 0
♦ Root Cause:
This alarm is called when we press the Turbine Manual button in visualization
♦ Remedial Action:
1. We use this facility to make free wheeling test in the turbine as per our requirement by using the following parameters
→ 14 – P_Turb_MinPitAngleManuell → 15 – P_Turb_SpeedGenSPManuell
2. Turbine will start only when we again press the Turbine Manual button
Pitch_Manuell_OverSpeed
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM253 1 0 5 100
♦ Place of the problem: Problem is related to the controller
♦ Root Cause:
This alarm is called when the generator rpm increases during manual pitching
♦ Remedial Action:
1. Manual pitching should be done only if the rotor is in locked status 2. Before manual pitching confirm that the rotor is locked properly
Temp_GearBox_HSS_NDE_HighStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM255 1 0 3 1
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gearbox High speed shaft section in the non driven end
♦ Reason:
We will get the Alarm only if measured value is greater than maximum stop level parameter Temp_GearBox_HSS_NDE (95 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication inside the
gear box HSS section in the non driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_GearBox_HSS_NDE_LowStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM256 1 0 3 1000
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any temperature decrease below the standard level in the Gearbox High speed shaft section in the non driven end
♦ Reason:
We will get the Alarm only if measured value is less than minimum stop level parameter Temp_GearBox_HSS_NDE (5 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. Check for the proper function of gear box heater 7. Replace the worned parts if any 8. Start the turbine and be happy
Temp_GearBox_HSS_NDE_HighWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM257 0 0 3 1
♦ Place of the problem: Problem is related to the Nacelle
♦ Root Cause:
If there is any abnormal temperature rise in the Gearbox High speed shaft section in the non driven end
♦ Reason:
We will get the Alarm only if measured value is greater than maximum stop warn parameter Temp_GearBox_HSS_NDE (90 deg)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from the sensor to the PTAI 216 module if
found ok then 4. Measure the ohmic value of the PT100 sensor in the terminal block if found ok
then 5. Check for the proper functionality of the particular PTAI pin if found ok then 6. If the temperature rise was real then check for the proper lubrication inside the
gear box HSS section in the non driven end 7. Replace the worned parts if any 8. Start the turbine and be happy
Elec_Current Asymmetry
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM258 3 4 3 2000
♦ Place of the problem:
Problem is related to the Power Panel, HT line and Generator
♦ Root Cause: We will get this alarm only if we have the current difference between any two phases
♦ Reason:
If the measured current value exceeds the parameter AI_Intern Current Asymmetry (>150A)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. After keenly observing the logs check whether the alarm comes during running or cut
in time
If it happens during running time a) Check for the proper tightness in power panel, capacitor panel, generator terminal box cable terminations and HT line connections b) Check for the proper function of power contactors (Big G & Bypass) c) Check for the condition of capacitors, fuses and inter connection cables terminations as well as contactors d) Check whether any damage occurred in power cables e) Check the current transformer loop and for loose connections in power panel
If it happens during cut in time
a) Check for the proper function of IXYS soft starter and the thyristors values b) Check for the generator winding values as well as for the tightness c) Check for the proper tightness in power panel, generator terminal box and
HT line d) Check for the proper function of power contactors (Big G) e) Check whether any damage occurred in power cables f) Check the current transformer loop in power panel g) Replace the worned parts if required and reset the turbine h) If you observe OK, be happy
Elec_GearBoxLubricPumpOn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM260 1 0 3 7200000
♦ Place of the problem: Problem is related to the nacelle
♦ Reason: We will get this alarm only when the filter motor is not in running condition for more than 2 hours
♦ Remedial Action:
1. This alarm will be auto resetted when the filter motor starts running
Elec_24VSupply_TopFail
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM261 1 0 3 1000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We will get the alarm when DI_24V_Top is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the input supply(230V AC) of three Power supply modules if OK then 4. Check the NO contact of all three power supply modules 5. Check for the loose connection from DIO module to Power supply modules 6. Replace the worned parts if required 7. Start the turbine and be happy
Elec_24VSupply_BottomFail
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM262 1 0 3 1000
♦ Place of the problem: Problem is related to the Bottom Panel
♦ Root Cause: Alarm is called if the digital input of the DIO 264 module is low
♦ Reason:
We will get the alarm when DI_24V_Bottom is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the input supply(230V AC) of two Power supply modules if OK then 4. Check the NO contact of all two power supply modules 5. Check for the loose connection from DIO module to Power supply modules 6. Replace the worned parts if required 7. Start the turbine and be happy
Elec_MFR_Fail
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM263 1 0 3 1000
♦ Place of the problem: Problem is related to the MFR 1371 (Multi Functional Relay)
♦ Root Cause:
Alarm is called if the digital input of the DIO 264 module is low
♦ Reason:
Missing of the 24V DC from the MFR1371 to DIO 264 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the operating voltage (24V DC) of the MFR 1371 unit. If OK then 4. Check the 24V DC output from the MFR 1371 5. Check the 24V DC at the particular input of the DIO264 module 6. Here you should get 24V DC if not then replace worned parts if required 7. Start the turbine and be happy
Mech_RpmFR1_CNT_DiffStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM264 3 0 3 5000
♦ Place of the problem: Problem is related to the Top Panel
♦ Root Cause: Alarm is called if the measured value is greater than high stop parameter
♦ Reason:
We will get the alarm when measured value is greater than AI_intern_Speed_RpmDiff_FR1_RotCNT (+2 / -2 rpm)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. After keenly observing the logs find whether Rotor_CNT rpm / Rotor_FR1 rpm
jumps 4. After finding check the functionality of the corresponding sensor also check for
the proper gap distance as per the standard 5. Check the functionality of the CNT204 module as well as FR1 monitor 6. Replace the worned parts if required 7. Start the turbine and keenly observe for corresponding rpm value if found OK be
happy
RS_YawCW_manuell
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM265 0 3 3 0
♦ Root Cause:
This alarm is called when we Press the Clockwise button (Yaw control) either in the visualization or in WT305
♦ Remedial Action:
1. We use this facility to move the turbine manually in clockwise direction as per our requirement if any
2. we can use this facility under running condition of the turbine
RS_YawCCW_manuell
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM266 0 3 3 0
♦ Root Cause:
This alarm is called when we Press the Counter Clockwise button (Yaw control) either in the visualization or in WT305
♦ Remedial Action:
1. We use this facility to move the turbine manually in counter clockwise direction as per our requirement if any
2. we can use this facility under running condition of the turbine
RS_YawCW_TopBox_manuell
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM267 1 3 3 0
♦ Root Cause:
This alarm is called when we Press the Yaw CW push button in the top panel
♦ Remedial Action:
1. We use this facility to move the turbine manually in clockwise direction as per our requirement if any
2. The turbine will start only when we reset the alarm
RS_YawCCW_TopBox_manuell
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM268 1 3 3 0
♦ Root Cause:
This alarm is called when we Press the Yaw CCW push button in the top panel
♦ Remedial Action:
1. We use this facility to move the turbine manually in counter clockwise direction as per our requirement if any
2. The turbine will start only when we reset the alarm
FSS_Fault
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM270 3 0 3 0
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause:
Problem detected by the SFS Module
♦ Reason: We will get if there is any problem in the flexi slip system
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the complete loop of flexi slip circuit including the rotor terminals and
resistor box 4. Check for any abnormalities in the SFS panel (Component failure) 5. Check the operating supply (24V DC) of the SFS module, if OK then 6. Replace the worned parts if required and reset the turbine 7. Start the turbine and be happy
RS_StopBrakeButtonTop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM275 2 0 2 1000
♦ Root Cause:
This alarm is called when we Press the Brake push button in top operational box
♦ Remedial Action:
1. To bring the rotor in standstill condition as per our requirement we use the push button
2. The turbine will start only when we reset the alarm
FB_YawBrake
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM278 4 0 0 5000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_FB_YawBrake high when DO_ YawCW / DO_ YawCW is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to yaw brake sensor if
found OK then 4. Check the gap setting of the yaw brake sensor if OK then 5. Check whether the sensor senses properly by manual metal object movement 6. Replace the worned parts if required 7. Start the turbine and be happy
YawLubricationWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM279 0 0 0 60000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_PulseSensorCLYawBearing high when DO_ CLPumpYawBearing is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to centralized
lubrication system if found OK then 4. Replace the worned parts if required 5. Start the turbine and be happy
MainBearingLubricationWarn
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM280 0 0 0 60000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We should get the signal DI_PulseSensorCLMainBearing high when DO_ CLPumpMainBearing is high
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Initially check for the loose connection from DIO module to centralized
lubrication system if found OK then 4. Replace the worned parts if required 5. Start the turbine and be happy
Pitch_EmergencyRun
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM283 3 4 3 1000
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the digital inputs of the frequency converters are low DIi_Pit1EmergencyRun / DIi_Pit2EmergencyRun / DIi_Pit3EmergencyRun
♦ Reason: Missing of the 24V DC in the safety speed loop
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. If there is any error, after resetting the turbine all 3 blades should move to 0
degree. If it not happens check the safety speed signal loop of the frequency converter. It should be high during normal condition (No error).
5. If the safety speed signal is low, then check the complete loop of the safety speed signal as per the circuit.
6. If you found OK then start the turbine and be happy
Pitch_SuppyFail
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM284 1 0 3 5000
♦ Place of the problem: Problem is related to the Hub
♦ Root Cause:
If there is any problem with the incoming 3phase 230V supply to the hub
♦ Reason: We will get the Alarm only if measured value is greater than AI_intern_PitchSupply (270V DC)
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm whether it has done properly 4. Check the complete loop for the incoming 3phase 230V supply in the hub 5. Replace the worned parts if required 6. Make the safety speed if you found OK then 7. Start the turbine and be happy
Pitch_FusesBattChargerOFF
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM285 1 0 3 1000
♦ Place of the problem: Problem is related to the nacelle
♦ Root Cause: Alarm is called if the digital input of the DIO 280 module is low
♦ Reason:
We will get the alarm when signal DI_FusesBattCharger is low
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check whether the corresponding fuses were tripped 4. If tripped then we have to find out reason for which it has been tripped. There
may be following possibilities → Battery charger failure → Slip ring → Battery banks → Diodes
5. If not tripped, Check the NO contact of the fuses and the functionality DIO280
module 6. Replace the worned parts if required and take the safety speed 7. If you observed OK, start the turbine and be happy
Rep_Mech_TowerVib_stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM291 1 4 3 0
♦ Place of the problem: Problem is related to the nacelle control panel and particularly for the PCH 1026 digital structural vibration monitor
♦ Root Cause:
We will get the alarm only when the Mech_TowerVib_stop came thrice within an hour
♦ Reason:
Problem with the abnormal vibration of the tower due to misalignment of the nacelle accessories (or) missing of the 24V DC from the PCH1026 to DIO 280 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the nacelle accessories (Gear Box, Generator etc...) for the misalignment.
If you found OK, then 4. Compare the pitch angle of all 3 blades and it should be same. If its OK, then 5. Check the 24V DC output from the PCH 1026 digital structural vibration monitor.
Here you should get 24V DC if not then replace the PCH 1026 monitor. 6. Start the turbine and observe for vibration. 7. If you found OK be happy.
Rep_Mech_DriveTrainVib_stop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM292 1 4 3 0
♦ Place of the problem: Problem is related to the nacelle control panel and particularly for PCH 1026 digital structural vibration monitor
♦ Root Cause:
We will get the alarm only when the Mech_DriveTrainVib_stop came thrice within an hour
♦ Reason:
Problem with the abnormal vibration of the Gear box due to misalignment of the nacelle accessories (or) missing of the 24V DC from the PCH1026 to DIO 280 module
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the nacelle accessories (Gear Box, Generator etc...) for the misalignment.
If you found OK, then 4. Compare the pitch angle of all 3 blades and it should be same. If its OK, then 5. Check the 24V DC output from the PCH 1026 digital structural vibration monitor.
Here you should get 24V DC if not then replace the PCH 1026 monitor. 6. Start the turbine and observe for vibration 7. If you found OK be happy.
Rep_Pitch_FreqConvPitch1_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM293 1 0 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the Pitch_FreqConvPitch1_ErrStop came thrice in an hour
♦ Reason: Missing of the signals at the frequency converter 1
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Initially check for any abnormalities inside the hub visually also check the
tightness of the circuit connections inside the hub panel if found ok then 5. Completely check all the incoming supply to the frequency converter 1 if found
ok then 6. Check the cable continuity between the frequency converter and pitch motor if
found ok then 7. Check the ohmic value of the pitch motor temperature sensor 8. Check the functionality of the resolver including the cable connections 9. Check all the inputs of the frequency converter as per the circuit 10. Check for the battery leakage in all the battery banks 11. Also check for the proper alignment of slip ring brushes including CAN
connections 12. If all above check points are found ok then replace the frequency converter 13. Take the safety speed if you found ok then 14. Start the turbine and be happy
Rep_Pitch_FreqConvPitch2_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM294 1 0 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the Pitch_FreqConvPitch2_ErrStop came thrice in an hour
♦ Reason: Missing of the signals at the frequency converter 2
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Initially check for any abnormalities inside the hub visually also check the
tightness of the circuit connections inside the hub panel if found ok then 5. Completely check all the incoming supply to the frequency converter 2 if found
ok then 6. Check the cable continuity between the frequency converter and pitch motor if
found ok then 7. Check the ohmic value of the pitch motor temperature sensor 8. Check the functionality of the resolver including the cable connections 9. Check all the inputs of the frequency converter as per the circuit 10. Check for the battery leakage in all the battery banks 11. Also check for the proper alignment of slip ring brushes including CAN
connections 12. If all above check points are found ok then replace the frequency converter 13. Take the safety speed if you found ok then 14. Start the turbine and be happy
Rep_Pitch_FreqConvPitch3_ErrStop
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM295 1 0 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause:
Alarm is called if the Pitch_FreqConvPitch3_ErrStop came thrice in an hour
♦ Reason: Missing of the signals at the frequency converter 3
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. Initially check for any abnormalities inside the hub visually also check the
tightness of the circuit connections inside the hub panel if found ok then 5. Completely check all the incoming supply to the frequency converter 3 if found
ok then 6. Check the cable continuity between the frequency converter and pitch motor if
found ok then 7. Check the ohmic value of the pitch motor temperature sensor 8. Check the functionality of the resolver including the cable connections 9. Check all the inputs of the frequency converter as per the circuit 10. Check for the battery leakage in all the battery banks 11. Also check for the proper alignment of slip ring brushes including CAN
connections 12. If all above check points are found ok then replace the frequency converter 13. Take the safety speed if you found ok then 14. Start the turbine and be happy
Rep_Pitch_EmergencyRun
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM297 1 0 3 0
♦ Place of the problem: Problem is related to the hub
♦ Root Cause: Alarm is called if the Pitch_Emergency Run error occurs 3 times with in 3600 seconds
♦ Reason: We will get the alarm if the digital inputs of the frequency converters are low DIi_Pit1EmergencyRun / DIi_Pit2EmergencyRun / DIi_Pit3EmergencyRun
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Make the hub lock and confirm that it has been made properly 4. If there is any error, after resetting the turbine all 3 blades should move to 0
degree. If it not happens check the safety speed signal loop of the frequency converter. It should be high during normal condition (No error).
5. If the safety speed signal is low, then check the complete loop of the safety speed signal as per the circuit
6. If you found OK then start the turbine and be happy
Rep_SE_RebootPLC
Index Brake Program Yaw Program Reset Level Set Delay (ms) FM298 1 0 3 0
♦ Place of the problem: Problem is related to the Bottom Panel and Control Panel
♦ Root Cause: Alarm is called if the PLC rebooted 3 times with in 3600 seconds
♦ Reason: Missing of the 24V DC at the NT250 power supply module / synchronization problem of both fast bus modules
♦ Remedial Action:
1. Using M-Manager, Take the fast log and event log of the particular alarm 2. Take the necessary safety items, circuit diagram, tools including measuring
devices like multi meter 3. Check the 24V DC at the NT250 power supply module. If OK then 4. Check for the loose connection in all Bachmann modules, if OK then 5. Check the warning for the fast bus synchronization problem in the previous log
book and current log book by using M-Manager, if you found 6. Check the optical cable, jumper setting of the fast bus modules and functionality
of all Bachmann modules 7. Replace the worned parts if required 8. Start the turbine and be happy
Prepared by : P.Vijaya Kumar
Approved by : D.Rajesh DGM (Engg.)
Version : RD.S88.01 Date : 22 / 09 / 2006