ec2 plus

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Functional RangeEC2 PLUS :AMF Relay

C&S Electric Limited(Protection & Control Division)

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EC 2 PLUS :AMF Relay

2

Contents

1 Introduction and Application

2 Features and Characteristics

2.1General features2.2 AMF function features

2.3 Measurement, display and supervision features2.4 Protection features2.5 Communication features

3 Operating Mode

3.1 Automatic mode3.2 Manual mode3.3 Test mode

4 Mains Supervision

4.1 Parameter selection4.1.1 Voltage4.1.2 Frequency4.1.3 Frequency blocking voltage4.2 Circuit breaker supervision

5 Generator Supervision

5.1 Parameter selection5.2 Overload , CT Ratio, Run time, Rest time, Room

temp, Ex battery lower setting

5.3 Run time and Rest time5.4 Exchange battery voltage supervision5.5 DG battery voltage supervision5.6 Thermal management5.7 Emergency stop5.8 Time circuits5.9 Time elements5.9.1 Auto Hooter reset period5.9.2 Generator CB on delay5.9.3 Generator Re-cooling time5.9.4 Generator cranking period5.9.5 Generator cranking wait period5.9.6 Mains restoration time

5.9.7 Generator start delay5.9.8 Delayed supervision time5.9.9 Generator off delay

6 Design

6.1 Connection6.2 Output relays6.3 Inputs6.3.1 Mains voltage connection6.3.2 Generator voltage connection6.3.3 Auxiliary supply

6.3.4 CB feedback No contacts

6.3.5 External fault inputs6.3.6 Internally processed fault display6.4 Display6.4.1 Display for 16 * 2 LCD6.4.2 Display for 20 * 4 LCD

6.5 LEDs6.6 Front panel keypad6.7 GSM communication6.8 Protection6.8.1 Over load6.8.2 Phase reversal6.9 Digital inputs

7 Parameters Procedure & Display

7.1 Mode selection7.2 Measuring parameters display

8 Getting Started

8.1 EC2+ display for MMI-18.2 Faults displayed on LCD8.3 EC2+ display for MMI-28.4 Edit para mode8.5 View para mode8.6 Selection mode8.7 Password modes8.8 Load default mode

9 Functional Specification

10 Performance Specification

11 Hardware Specification

12 Snap Shot of CSE LIVE LINK Frontend Software

13 Front Panel of EC2 PLUS

14 Snap Shot of Data Logging & Data

Management in Standard ExcelFormat

15 Snap Shot of Daily Energy Reportin Excel Format

16 Terminal Details

16.1 Terminal arrangement

16.2 Terminal description

17 Order Form

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1. Introduction and Application

AMF & Engine Control Relay Type - EC2 PLUS

EC2 PLUS is designed for the control of emergency andstandby power systems. It integrates the functions of enginestart relay, engine and alternator supervision and

annunciator. The relay measures and displays variouselectrical parameters and has a user friendly MMI in theform of a keypad and a LCD display.

EC2 PLUS measures and displays various parameters likevoltages, currents, power factors, active power consumedin all the three phases. It also measures the energyconsumed by the load and records start and stop times ofthe generator. The display of month-wise energyconsumption is available.

EC2 PLUS provides the overload protection and thepermissible overload limit can be selected on the relay.The Actual load current is displayed by selecting the actualCT ratio used for the purpose of measurement.

The relay has excellent communication features includingGPRS and SMS connectivity through Modem and any faultevent thus can be immediately conveyed to the base stationor to the concerned persons.

2. Features & Characteristics

Features of the relays are explained in five differentcategories like General features, AMF features,Measurement Display and Supervision features, Protectionsfeatures and Communication related features.

2.1 General Features

Micro controller technology

Wide range of auxiliary supply: 7 V to 35VDC.

Withstands a dip to 0V of auxiliary supply for 1second.

Alphanumeric LCD displays with keypad for easy ofoperation.

LED indications to know the status of variousparameters

Provision for operating externally mounted 12Auxiliary relays for control and protection purpose.

Isolated inputs and outputs.

Periodic test feature

Flush Mounting

2.2 AMF Funct ion Features

Continuous supervision of mains & D.G breakerstatus - ensures human /equipment safety

Internal interlock for EB & DG breaker for fail safe

operation.

DG starting process supervision Indication of CB status

Wide array of time circuits for start delay, stop delay,mains restoration, re-cooling etc.

2. 3 Measurement, Display & Supervision Features

Measures and displays different electrical parametersof mains and generator for different phases including

Current, Voltage, Frequency, Power Factor, Power andEnergy.

Supervision of three phase mains voltages for UV,OV & unbalance.

Supervision of D.G voltages for UV, OV.

Supervision of mains & D.G frequency.

Supervision of battery voltage.

Parameter setting from front panel keypad.

24 LEDs to indicate status of the relay and the type offault occurred. Fault indications in RED color & statusindications in GREEN color.

Exchange battery voltage supervision.

Fuel level monitoring at two different levels.

2. 4 Protection Features

Over-frequency indication / shutdown.

Internal fault annunciation for fail to start, over speed& low battery.

Overload protection with selectable overload setting.

Protection against undesired conditions of variousDigital inputs.

Protection against LLOP, HCT, Faults in the engine.

2. 5 Communication Features

Connectivity through Modem on GPRS for transfer ofdata and event.

Connectivity through Modem on SMS to maximum 6persons for event related information transfer.

Records and communicates monthly energyconsumed by Generator and Mains to base station(As shown in section 15).

Records and communicates the five Logs ofGenerator start and stop times to base station tomonitor run hours of the DG.

EC2 PLUS gives first priority to Base stationcommunication via TCP/IP through GPRS. In case ofunavailability of GPRS, EC2 PLUS update its status toMonitoring base station via SMS communication.

Data communication occurs through TCP/IP protocol.IP address of monitoring base station is configurablein EC2 PLUS relay.

CSE LIVELINK front end software interface gives thecomplete data base management for AMF controller

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at base station. Front end monitoring interface s/w,gathers all the information of EC2 PLUS like runningenergy, voltages, load currents, PF , Run hours , DG/Mains Fault status in Excel format. One base stationcan handle more then 100 EC2 PLUS simultaneouslyvia GSM/GPRS modem connection (as shown insection 13,14)

EC2 PLUS communication record at base station isdistinguished through unique Site Name and Site Nowhich is configurable in relay.

3. Operating Modes

EC2 PLUS operates in one of the three modes as describedbelow. The operating mode can be selected from frontkeypad. The three modes are:

1 . Automatic

2 . Manual3 . Test

The three operating modes are described below:

3.1 Automatic Mode

In Automatic mode starting and stopping of the engine andon/off control of circuit breakers is governed by sixconditions: Availability of healthy mains supply, the roomtemperature (analog i/p) ,room temperature (digital i/p),*BTS2 voltage , *BTS3 voltage and the Exchange battery

voltage. If mains supply is healthy, genset is not started orswitched off if running. If mains supply is unhealthy then alow Exchange battery voltage as compared to lower setvalue or a high room temperature(digital i/p) or low roomtemperature (analog i/p) as compared to set value or low*BTS2 voltage or low *BTS3 voltage start the genset.Gensetwill be stopped when mains recovered.

NOTE: *BTS2 voltage and *BTS3 voltage areavailable only in version 1.1

3.2 Manual Mode

In this mode EC2 PLUS ignores mains voltage. It onlyresponds to STARTand STOP commands from the keypad.Similarly generator and mains CBs are also operated fromthe keypad.

Precaution:Before giving Start command to generator,one must ensure that the generator CB is open. Start keyshould be held down until the engine reaches thresholdspeed. The generator CB may now be switched on fromkeypad provided that the Mains CB is off. Stop key turns offthe engine (remove this line).

When stop key is pressed, the generator CB is switched offand then the generator is stopped.

The mains CB can also be activated from the keypad.Interlocking of mains and generator CBs is built into thefirmware.

3.3 Test Mode

In this mode no-load and load test run of the Gen-set is

possible. In TEST mode, the engine is automatically startedand supervised and it is checked whether the generatorhas reached its rated voltage. Should a mains failure occurduring test mode operation, the mains emergencyoperation is initiated automatically.

Mains CB open/close switches are active. Similarlygenerator CB open/close switches are also active.

4. Mains Supervision

EC2 PLUS continuously monitors three phase mains supplyvoltage and detects unhealthy conditions. If unhealthy

conditions are detected, then it trips mains CB and initiatesstarting of genset depending upon thermal managementcondition. Unhealthy condition shall be defined by user inEdit mode.

Unhealthy conditions are defined as follows:

If voltage of any phase falls below a lower set limit orexceeds a higher set limit.

If difference between voltages of any two phasesexceeds a preset limit (% unbalance)

If frequency falls below a lower set limit or exceeds ahigher set limit.

If Single phase enable is selected then all thephases must become unhealthy for a valid unhealthycondition.

4.1 Parameter Selection

4.1.1 Voltage

User selects lower and upper limits of line voltage inparameter setting mode. EC2 PLUS can be used for singlephase / 3 phase systems. However the user can set theunder and over voltage values.

If mains voltage in any phase either exceeds the upper setlimit or falls below the lower set limit, then it is deemed tobe an unhealthy condition. In Auto mode the relay tripsmains CB if the condition prevails continuously for the userdefined time delay.EC2 PLUS is also provided with mainsvoltage unbalance monitoring.

4.1.2 Frequency

User selects lower and upper limits of acceptable frequency.If the frequency is beyond the limits then it is considered tobe an unhealthy supply condition and the mains CB must

trip if the condition prevails longer than user defined timedelay.

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4.1.3 Frequency Blocking Voltage

Frequency supervision is disabled below this voltage.

4.2 Circuit Breaker Supervision

The unit is also equipped with Circuit Breaker Supervision.For supervising the healthiness of circuit breaker thefeedback is to be connected at terminal 19 & 21 fromnormally open contacts of Mains & Gen. Circuit Breakerrespectively.

After issuing closing command, if the feedback signal fromNO contact of breaker is not received, the unit will indicatea fault by displaying message on the LCD (16*2) displayfor Mains & Generator respectively.

5. Generator Supervision

While the genset supplies power, it can also show all thoseabnormalities which were anticipated in mains supervision;there are however two added parameters: engine speedand battery voltage.

5.1 Parameter Selection

The voltage/frequency limits for the DG set can be setindependently. The setting procedures are similar to themains parameters settings.

The over-speed is sensed through the frequency of the

generating set. In case of high frequency the relayaccordingly trips the generator CB and proceeds to shut-down the engine.

5.2 Overload, CT Ratio, Run Time, Rest Time,

Room Temperature, Exchange Battery Lower Setting

Min Max Increment in Step

Over Load 10A 30A 0.5A

CT Ratio 1 10 0.5

Run Time 1Hr 10Hr 0.5Hr

Rest Time 1Hr 10Hr 0.5Hr

Room Temp 30deg 100deg 5deg

Exchange Battery 40V 48V 1V Lower Setting

*NOTE: Editable through serial comm. port

5.3 Run Time and Rest Time

Generator will continuously run till the set Run Time elapsesafter that generator will shut down and LCD(20*4) will

display REST_TIME in its status(screen nos 1,last line).Itwill remain in the off state till the set Rest time expires.

5.4 Exchange Battery Voltage Supervision

EC2 PLUS relay continuously monitors exchange batteryvoltage. If the Exchange battery voltage falls below a lowerset value, it only gives the visual indication by glowing theLED marked Exchange Battery Lowon the front plateof the relay. When the exchange battery voltage returns to

its operating limit, then the LED marked ExchangeBattery Low returns to normal state.

5.5 DG Battery Voltage Supervision

EC2 PLUS relay continuously monitors DG battery voltageand if the voltage falls below a set value, LCD (20*4) willdisplay DG_BAT_LOW in its fault status. Indication of highbattery voltage is also available with fixed settings i.e. iflow battery voltage is set below 12 V high battery voltagewill be automatically set as 14 V & if low battery voltage isset above 12 V, setting of high battery will be 28V.

5.6 Thermal Management

EC2 PLUSrelay will not start Generator even when mainsfail. If exchange battery voltage exceeds higher set valueand room temperature (analog i/p) is more than set valueand room temp (digital i/p) is low and *BTS2 voltage and*BTS3 voltages are high when all these above conditionssatisfies EC2_PLUS will not issue start command and LCD(20*4) will display DG_ON_HOLD in its status (screen nos1, last line). When any of this condition gets violated andmains voltage is not present generator will get the startcommand.

NOTE: *BTS2 voltage and *BTS3 voltage are available

only in version 1.1

5.7 Emergency Stop

The Gen-set can be stopped in the event of an emergencyby shorting terminal marked Emergency to the negativeterminal of battery. In this case the re-cooling phase isbypassed.

5.8 Time Circuits

EC2 PLUS provides a user friendly MMI (Man-MachineInterface) for setting different time circuits for engine startdelay, stop delay, mains restoration, re-cooling etc.All theseparameters can be viewed in MMI-2.

The Table 1 gives the entire time settings.

5.9 Time Elements

5.9.1 Auto Hooter Reset Period

It is related to hooter operation and it can be set by theuser. It starts as soon as hooter starts. If hooter is not silencedwithin auto-silence period, then at the expiry of this periodhooter is automatically stopped.

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5.9.2 Generator CB on Delay:

Generator circuit breaker is not closed immediately aftergenerator exceeds ignition speed. A time delay isintroduced. This time delay can be set by the user. Duringthis time EC2 PLUS checks if generator voltage is healthy.

This timer starts after generator voltage reaches safe limit.

5.9.3 Generator Re-cooling Time:

Engine is not switched off immediately after GCB is opened.The Gen-set needs time to cool off. If it is stopped coolingaction also stops and the heat stored in its mass starts raisingits temperature. The temperature can attain dangerouslevels depending on the duty to which Gen-set was subjectedto before GCB was opened. Generator is allowed to runat no load for sometime, this is known as re-cooling time.Re-cooling time can be set by the user.

5.9.4 Generator Cranking Period

Engine is cranked for the duration of Generator CrankingPeriod and then waits for engine to start. If engine starts(generator Voltage > Ignition voltage OR Ignition Oncontact closes), during Generator Cranking Period thenalso cranking is stopped. This period can be set by theuser.

5.9.5 Generator Cranking Wait Period

It is the time interval between two start attempts. During

this period cranking is not repeated.

5.9.6 Mains Restoration Time:

It is the time from mains recovery to closing of mains CB.This timer is started when mains recover. Mains must remainhealthy during this period otherwise the timer is reset.

5.9.7 Generator Start Delay:

Time between mains failure and initiation of start procedure.

5.9.8 Delayed Supervision Time:

Oil pressure takes time to build up and hence low pressurealarm is initially on. Thus the alarm is not meaningful. Wemust give time for oil pressure to build up and then monitorthe alarm. The process is called Delayed Supervisionand this time is user settable.The timer starts after generator voltage exceeds ignitionvoltage.

This is also a form of delayed supervision.When GCB is closed, entire load is taken by the generator.If there are loads which draw heavy starting current, thengenerator voltage will dip as soon as GCB is closed. Thedip will persist for some time. During this time generatorvoltage should not be monitored otherwise EC2 PLUS willdecide to trip generator. The time allowed for this delayedsupervision is Generator tripping delay. It is usersettable.

5.9.9 Generator Off Delay:

This timer is started as soon as generator unhealthycondition is detected and generator is turned off when the

set time elapses. This time is set to Generator Off delay.

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Description Displayed As Range Steps Default Setting

Mains Rated Voltage MAINS RATED VOLT 0-999 1V 230V

Mains Under Voltage MAINS RATED VOLT 0-999 1V 180V

Mains Over Voltage MAINS OVER VOLT 0-999 1V 250V

Mains Rated Frequency MAINS RATED FREQ 40-99.9 0.1 Hz 50Hz

Mains Under Frequency MAINS UNDER FREQ 40-99.9 0.1 Hz 47.5Hz

Mains Over Frequency MAINS OVER FREQ 40-99.9 0.1 Hz 52.5Hz

Generator Rated Voltage GEN RATED VOLT 0-999 1V 230V

Generator Under Voltage GEN UNDER VOLT 0-999 1V 180V

Generator Over Voltage GEN OVER VOLT 0-999 1V 250V

Generator Rated Frequency GEN RATED FREQ 40-99.9 0.1 Hz 50.0Hz

Generator Under Frequency GEN UNDER FREQ 40-99.9 0.1 Hz 47.5Hz

Generator Over Frequency GEN OVER FREQ 40-99.9 0.1 Hz 52.5Hz

Mains Frequency Blocking Voltage M_FREQ_BLK_VOLT 0-999 1V 100V

Generator frequency Blocking Voltage G_FREQ_BLK_VOLT 0-999 1V 100V

Over Speed OVER SPEED 40-99.9 0.1 Hz 55.0 Hz

Ignition Voltage IGNITION VOLT 0-999 1V 60V

Generator CB on Delay GEN CB ON DELAY 0-999 1 Sec. 3 Sec

Generator Re-cooling time GEN RECOOL TIME 0-999 1 Sec. 180 Sec

Generator Cranking Wait Period GEN CK WAIT TIME 0-999 1 Sec. 10 Sec

Mains Restoration Time MAIN RESTOR TIME 0-999 1 Sec. 30 Sec

Generator Start Delay GEN START DELAY 0-999 1 Sec. 3 Sec

Generator Off Delay GEN OFF DELAY 0-999 1 Sec. 3 Sec

Delayed Supervision Time DELAY SUPER TIME 0-999 1 Sec. 10 Sec(LLOP protection only)

Single Phase Enable 1 PHASE ENABLE 0-1 - 0

Generator Tripping Delay GEN TRIP DELAY 0-999 1 Sec. 0 Sec

Auto Hooter Reset Period HOOTER RST TIME 0-999 1 Sec. 5 Sec

Mains Unbalance Voltage M UNBALANCE VOLT 1-999 1% 25%

Number of Generator Cranking NO. OF GEN CRANK 1-9 1 3

Generator Cranking Period GEN CRANK PERIOD 0-999 1 Sec. 1 Sec

Stopper Time STOPPER TIME 1-999 1Sec 10Sec

Battery low Indication BAT LOW INDICATN 6-999 1V 10.5V

Periodic Test Delay PERIOD TEST TIME 0-999 1 Hour 0 Hour

Table 1: Different parameter settings in edit mode

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6. Design

6.1 Connection:

The connection diagram for the AMF relay EC2PLUS isshown in the Fig. 2

6.2 Output Relays

The EC2 PLUS has twelve output lines which controls thetwelve different relays. Which are mounted externally onthe relay card .The function and the termination of theseoutput relays are described in the Table 2 below:

Relay No. Description Terminal No.

1 Hooter 35

2 DG Stop 36

3 Fuel 37

4 DG Start 385 MBK 39

6 GBK 40

7 Fail to Start 52

8 Mains Fail 53

9 Alt DG Stop 54

10 LLOP 55

11 Low Fuel 56

12 Fire Alarm 57

Table 2: Output relay description

6.3 Inputs

6.3.1 Mains Voltage Connection

Mains supply voltage connection to the relay EC2 PLUS isshown in the Fig2. The mains line voltage supply is connectedto the terminal numbers 1, 3, 5 with neutral at 6 to theEC2 PLUS relay.

6.3.2 Generator Voltage Connection

Generator supply voltage connection to the relay EC2 PLUSis shown in the Fig2. The generator line voltage supply isconnected to the terminal numbers 7, 9, 11 with neutral at12 to the EC2 PLUS relay.

6.3.3 Auxiliary Supply

The relay EC2 PLUS has SMPS auxiliary supply, which hasthe DC supply voltage range 7 - 35 V dc. This voltagesupply is connected positive (+ VE) to the terminal No.-14and negative (-VE) to the terminal No. 13.

6.3.4 CB Feedback No Contacts

The relay EC2 PLUS has two numbers CB feedback contactsone for mains CB and other for generator CB which areconnected to the terminal 19, 21 respectively.

6.3.5 External Inputs:

There are three external input fault signals provided inrelay EC2 PLUS. Details of these faults are listed as below.

Description Type DefaultSetting

Fault No.1 0,1,2,3,4 0

Fault No.2 0,1,2,3,4 0

Fault No.3 0,1,2,3,4 0

Fault setting

0 Disable.1 Display only.

2 Display with Hooter/ Alarm.

3 Display, Hooter/Alarm with normal shut down ofgenerating set.

4 Display, Hooter/Alarm with emergency shut

down of generating set

Fault priority level

Annunciation

External fault Inputs Displayed As

Low lube oil pressure LOW LUBE OIL PRE

Over Speed OVER SPEED

High cooling water HIGH COOL TEMPtemperature

6.3.6 Internally Processed Fault Display

Different internally processed fault displays in the relay

are

1 Mains CB open fail

2 Mains CB close fail

3 Generator voltage unhealthy

4 Generator fails to start

5 Generator fails to stop

6 Generator CB open fail

7 Generator CB close fail

8 Fail to build

9 Generator over speed10 Generator Emergency Stop

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6.4 Display

6.4.1 Display for 16 * 2 LCD

The AMF relay EC2 PLUS is equipped with four digits sevensegment numeric LCD display to provide the mode selectionstatus. The mains/ generator editable parameters checking

when required as shown in table 1. It also displays theabnormalities of the mains/generator parameters, CBs etc.

6.4.2 Display for 20 * 4 LCD

The AMF relay EC2 PLUS is equipped with four digits sevensegment numeric LCD which displays measuringparameters for Mains/Gen, RTC, fault status, site name &number, log duration for start/stop of DG, Energy registerfor 12 months for both Mains & DG and editableparameters.

6.5 LEDs

There are twenty-four LED indication provided in the frontpanel of the relay EC2 PLUS. Fault indications in RED color& status indications in GREEN color.The function of thesetwenty-four LEDs is described in the Table 6.

S.NO

1

2

3

4

5

6

7

8

LEGEND

Chrg AltFail

Load OnDG

Low WaterLevel

or*BTS3_Low

Fire Alarm

RoomTemp Low

Echg BattLow

CanopyTempHigh

Over Load

LED OFF

Charging ok

Load notconnected

Water levelabove theexternalset value*BTS3 voltageis OkFire notoccurred

Temp abovethe externalset value

Exchangebatteryvoltagehealthy

Temperaturewithinexternal setlimit

Load withinexternal setlimit

LED ON

Charging notOK

Loadconnected

Water levelbelow theexternal setvalue*BTS3 voltageis lowFireoccurred

Temp belowthe externalset value

Exchangebattery voltagelow

Temperaturemore than theexternal setlimit

Load is morethan externalset limit

S.NO

9

1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

2 0

2 1

2 2

2 3

2 4

LEGEND

Mains CB

AlternatorFault

FrequencyLow

FrequencyHigh

LLOP

HCT

FuelLevel1

FuelLevel2

Phase

Reversal

Start Fail

Stop Fail

EmergencyStop

Mains Fail

Over Speed

GenVoltageHigh

GenVoltageLow

LED OFF

Mains CB notconnected

AlternatorOK

Frequencyabove the setlimit

Frequencybelow the setlimit

Pressure valueabove externalthe limit

Cylinder tempOK

Fuel levelabove thevalue of 50%

Fuel levelabove thevalue of 25%

Phase

sequence R-Y-B (correct)

..

..

EmergencyStop notoccurred

Mains Healthy

Speed belowthe set limit

Voltage belowthe set value

Voltage abovethe set value

LED ON

Mains CBconnected

Alternator notOK

Frequencybelow the setlimit

Frequencyabove the setlimit

Pressure valuebelow theexternal set limit

Cylinder temphigh

Fuel levelbelow thevalue of 50%

Fuel levelbelow thevalue of 25%

Phase

sequence is R-B-Y (not OK)

Generator failto start

Generator failto stop

EmergencyStop occurred

Mains not OK

Speed abovethe set limit

Voltage abovethe set value

Voltage below

the set value

Table 6: Function/Indication of LEDs

NOTE : *BTS3 is available only in version 1.1

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6.6 Front Panel Keypad

The front panel keypad consists of thirteen keys which arearranged into three groups.

These are:

6.6.1 Command keys in MMI 2

The Six Command keys marked as Gen Start, Gen Stop,Gen CB Open, Gen CB Close, Mains CB Open,and Mains CB Close.

6.6.2 Scroll/Editable keys in MMI 2

There are five Edit Keys in MMI-2 marked as Enter, ,, +, and , .Edit keys serve following functions

Key [Select Forward]

This key selects the mode of operation. These are:

Default mode, Edit parameter mode, view para mode,Selection mode Password mode and Load mode. The relayenters the specified mode only after the Enter key ispressed.

Key [Select Backward]

This is a multifunctional key. It performs following functions.

1 When there is no fault, it is used for back scrolling.

2 In the presence of a fault it is used as Silencekey to silence hooter.

3 In the presence of a fault, the fault can be resetby holding down this key for 4 seconds. The displaywill come back on the default screen as theacknowledgement of reset.

+

This key increments the value of the parameter beingdisplayed in Edit Para mode. This key is also used to enterand change the password.

-

This key decrements the value of parameters beingdisplayed in EDIT mode. This key is also used to enter andchange the password.

Enter

This key activates selected mode in mode selection process.

GEN START

This key is active in Manual mode. It starts the generator.

GEN STOP

This key is active in Manual mode only. It stops the generator.

GEN CB OPEN

This key is active in Manual mode. It opens generator CB.

GEN CB CLOSE

This key is active in Manual mode. It closes generator CB.Mains CB OPEN

This key is active in Manual mode. It opens mains CB.

Mains CB CLOSE

This key is active in Manual mode. It closes mains CB.

6.6.3 Scroll/Editable keys in MMI 1

Right Key

This key is used for viewing the next page, Long Press RightKey to Enter in Next Menu.

This key is also used to reset the Hooter, overload and

alternator fault.

Left Key

Left Key is used for viewing the previous page.

6.7 GSM/GPRS Communication

EC2 PLUS is equipped with TCP/IP communication whichallows interfacing of the relay with GSM/GPRS modem. Anull modem cable is required for communication withmodem.

6.8 Protection

1. Over Load2. Phase Reversal

6.8.1 Over Load

EC2 PLUS provides overload protection for the DG, if thecurrent value in any phase or in all phases exceeds the setlimit of overload current & if this condition prevailscontinuously for 1 min, it will shut down the DG, LEDannunciation is also provided. This fault will be reset bypressing Right key in MMI 1.

6.8.2 Phase Reversal

Phase reversal is provided for both Mains & DG.If thesequence is R,Y,B then phase sequence is ok otherwise itwill glow phase reversal LED after 3sec of the load transfer

on Mains or DG.This LED will return to its normal statewhen relay will get the right phase sequence

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6.9 Digital Inputs

NOTE: *BTS2 voltage and *BTS3 voltage are available

only in version 1.1

7. Parameters Setting/Display Procedure

7.1 Mode Selection

To scroll through various modes press key. We canselect parameters by pressing Enter key.

7.2 Display Measured Parameters

To scroll through parameters, press + key. Refer GettingStarted for details.

8 Getting Started

8.1 EC2 PLUS display for MMI-1

The EC2 PLUS relay is equipped with a back-lit LCD displayhaving four lines of twenty alpha-numeric characters todisplay Mains and current, Voltage, power factor, frequency,and etc. The left, right key on the left side is used to see thefollowing screens displaying various parameters. Thegenerator start time, stop time and duration of run arelogged and the last 5 values can be seen on the screen.The number in the left top corner indicates the numberlogged. The data related to energy consumed by generatorand by mains in a given month are recorded. On eachscreen energy values of 3 months are displayed.(The screenfor Jan, Feb, March is shown in screen no. 17).Theinformation related to Generator start time, Stop time andDuration of run are also displayed .Refer screen number19 (On the top right corner E1 is displayed which meansrecord 1). The last 5 records can be displayed and recordnumber will accordingly get changed.

SCREEN NO. 1

# SITE NAME SITE NO #BSNL 12345678

12.08.08 11.03.08> DG_BAT_LOW

8.2 EC2 PLUS display for MMI-2

8.2.1 If any external or internal fault comes, then EC2PLUS comes into fault displaying mode.

8.2.2 In fault screen, one fault is displayed in the first lineand an instruction to reset the fault (by pressing for four seconds) is displayed in second line.

8.2.3 If more than one faults are present they can beviewed by pressing E when fault has beendisplayed followed by +/- keys

OVER SPEEDRST:PRESS MORE

8.3 EC2 PLUSenters in the menu selection by pressing (Forward Select) & (Backward Select)

8.3.1 Scrolling through different modes can be done with (For. Select) & (Back Select) keys.

8.3.2 By pressing E (Enter) we can go in to the selectedmode.

8.3.3 Default mode is meant for returning to the defaultscreen view.

8.3.4 Edit parameter mode is for editing parameter. It isprotected by service password.

8.3.5 View parameter mode is only to view parameters.Parameters cant be changed.

8.3.6 Selection mode is for selecting the operationalmode.

SCREEN NO. 12

# TEMP LEVEL #

RMTEMPLEVEL >50C

SCREEN NO. 18

NEXT MENU >

SCREEN NO. 17

MONTHLY ENERGYMAINS KWH DG KWH

JAN 12345.6 12345.6FEB 12345.6 12345.6MAR 12345.6 12345.6

SCREEN NO. 9

GENERATOREX_BAT_VOLTAGE 48.5

BAT_VOLTAGE 48.5SPEED 1500 RPM

SCREEN NO. 10

MAINSPOWER 5671.2 KWFREQUENCY 49.7 HZ

SCREEN NO. 11

GENERATORPOWER 5671.2 KWFREQUENCY 49.7HZ

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8.3.7 Password mode is to change the service password.It requires the service password while changing.

8.3.8 Load default mode is for loading the defaultparameters and default service password .It isprotected by the master password.

8.3.9 EC2 PLUS will return to the default screen displaymode if left unattended for more than 16 secondsat any stage.

8.4 Edit Para Mode:

8.4.1 Enter the edit para menu by entering correctservice password and then pressing E. Scrollingthrough different editable parameters can be donewith & keys. By using the + & - keyparameters values can be increased or decreased.

8.4.2 External faults level can be edited by pressing +& - key when fault parameters appear. Type(Level) of the fault can be Inc/Dec when cursorpoints the Type.

8.4.3 Further presses of will roll over theparameter list from the start.

8.4.4 By pressing E, EC2 PLUS will ask whether to savethe edited parameters which can be selected ornot by + & - keys. Pressing E on Yes willsave the parameter set and will automatically exit

to the default mode.

8.4.5 The current mode has been written at the end ofsecond line.

DEFAULT MODE

B. SELECT F. SELECT

EDIT PARA MODE

B. SELECT F. SELECT

VIEW PARA MODE

B. SELECT F. SELECT

MANUAL DIAG MODE

B. SELECT F. SELECT

SELECTION MODE

B. SELECT F. SELECT

PASSWORD MODE

B. SELECT F. SELECT

LOAD DEFAULT MODE

8.5 View Para Mode:

8.5.1 Enter the view para menu by pressing E.Scrolling through different non-editable param-

eters can be done with & keys.

8.5.2 Further presses of will roll over the param-eter list from the start.

8.5.3 By pressing E, EC2 PLUS will revert to thedefault mode.

8.5.4 The current mode has been written at the end ofsecond line

8.6 Selection Mode:

8.6.1 Enter the operational mode selection menu bypressing E. Scrolling through different modescan be done with & keys.

8.6.2 Further presses of will roll over the param-eter list from the start.

8.6.3 Current operational mode can be identified asmode with already written Selected.

8.6.4 By pressing E, EC2 PLUS current selection willbe selected and will return to the default displays.

MAINS RATED VOLT

240V VIEW

B. SELECT F. SELECT

MAINS UNDER VOLT

180V VIEW

B. SELECT F. SELECT

FAULT 1 TYPE 4

LOW FUEL LEVEL

MAINS RATED VOLT

240V EDIT

B. SELECT F. SELECT

MAINS UNDER VOLT

180V EDIT

B. SELECT F. SELECT

FAULT 1 TYPE 4

LOW FUEL LEVEL

ENTER SAVE?? Y

EDIT

SAVED......

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8.6.5Current mode has been written at end of secondline

8.7 Password Modes:

8.7.1 Enter the change password menu by pressingenter to the Chng Super Pass.

8.7.2 Enter the old supervisor password which if foundinvalid will popup the Invalid Password error andwill return to the default mode.

8.7.3 Change the new supervisor password andconfirm it.

8.7.4 The current mode has been written at the end of

second line

Test Mode

Selected SeleSELE

Auto Mode

SELE

ENTER ENTERManual Mode

CONFIRM PASSWORD

....... PASS

ENTERCHNG SUPER PASSPASS

ENTER

ENTER OLD PASS...... PASS

ENTER

ENTER NEW S. PASS...... PASS

PASSWORD CHANGED

ENTER

LOAD DEFAULT PARA

LOADED LOADENTER

LOAD DEFAULT PARALOAD

B. SELECT

LOAD DEF. S. PASS LOAD

F. SELECT

8.8 Load Default Mode

8.8.1 Enter the load default menu by entering correctmaster password and then pressing E. Scrollingthrough different parameters can be done with & keys.

8.8.2 Further presses of will roll over the parameterlist from the start.

8.8.3 By pressing E, EC2 PLUS will load defaultparameter or service password or will reset theengine run hours.

8.8.4 The current mode has been written at the end ofsecond line

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S.No Parameter Specification

1 Selection modeIn MMI-2 Auto mode

2 Manual mode

3 Test mode

4 Functions Mains 3 phase

voltage,Current,Freq,Power,P.F,cumulative andmonthly Energy

5 DG 3 phase Voltage,Current,Freq,Power,P.F,cumulative and monthly Energy,Speed,RunHours,DG Battery voltage,Exchange Battery voltage

6 Overload Current,CT Ratio,Exchange battery lowersetting, Exchange battery higher setting

7 Voltage rated, upper and lower limits for mains andGenerator

8 Frequency rated, upper and lower limits for mainsand generator

9 Unbalance limit for mains voltage

10 Enable mains operation on single phase

11 Voltage limit below which frequency ofmains/generator is not read

12 Battery voltage Low value

13 Ignition voltage

14 Over speed limit

15 Number of cranking attempts

16 Generator start delay

17 Generator cranking period

18 Stopper delay 19 Cranking wait period

20 Re-cooling Time

21 Generator CB on delay

22 Generator Tripping delay

23 Delayed supervision

24 Generator off delay

25 Mains restoration time

26 Periodic test delay

27 Hooter Reset Time

28 Set all above parameters. This mode is protectedby Supervisor Password.

29 Supervisor password can be modified.

30 Load Default Mode This mode loads default parameters and supervisorpassword It is protected by Master password.

31 Supervision Three line voltages & current of mains-voltage band-unbalance limit

32 Three line voltage & current of generator-voltage band

33 Frequency of mains-frequency band

34 Frequency of generator-frequency band

35 Battery voltage-voltage band

View actual values in

MMI-1EditParametersin MMI-1

Edit Parameters inMMI-1

View Set Parameters(View Para Mode)In MMI-2

Edit Parameters (Edit ParaMode)in MMI-2

Change Password(Password Mode)in MMI-2

9. Functional Specifications

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10. Performance Specifications

S.No Parameter Specification

1 Aux supply 7.0 35.0 V DC

2 Aux supplyInterruption Time One second sustains battery dip down to zero voltsfor one second without requiring external capacitorbank.

3 Aux supply burden

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26 Key pad 13 Keys 1 Scroll/ Editable Keys Forward, Increment, Decrement,11 keys on right side & 2 on Backward, Enterleft side

5 Keys

27 2 Control Keys Gen Start, Gen Stop, Open

Mains CB, Close Mains CB, Open DG 6 Keys CB, Close DG CB

28 Scroll / editable keys Left, Right2 Keys

29 External faults - 4 Opto-isolated I/Ps

30 Controls 3 Opto-isolated I/Ps Emergency Stop

31 Feed Back 3 Opto-isolated I/Ps MCB check back

32 GCB check back

33 Ignition On

34 Relay HOOTER

35 Relay DG STOP36 Relay FUEL

37 Relay DG START

38 Relay- MBK

41 Relay- GBK

42 Relay FAIL TO START

43 Relay MAINS FAIL

44 Relay ALT DG STOP

45 Relay LLOP

46 Relay LOW FUEL

47 Relay FIRE ALARM48 Communication Serial full duplex

RS232Modem enabled (Bi-directional)Windows based Proprietary Software

49 Serial connector 9-pin subminiature DB9-connector

50 Storage temp. 0C - +70C

51 Operating Temp 0C - +70C

52 Connecting terminals max 2.5 mm2

Recommended 2.5 mm2conductor

53 Enclosure 1. Flush mounting

2. Panel cut-out :( W x H) 2850.5 x 1600.5 mm (max.)

3. Installation Depth: 80 mm (max.)

4. Weight: 0.8 Kg approx.

Relay 12 nos.O/PContact rating (Allrelays) 250 V AC, 4Aresistive

NOTE: *BTS3 is available only in version 1.1

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12. Snap Shot of CSE LIVE LINK Frontend Software:

13. Front Panel of EC2 PLUS

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16. Terminal Details

16.1 Terminal arrangement

Terminal DescriptionNo.

1 Mains Voltage R

2 --

3 Mains Voltage Y

4

5 Mains Voltage B

6 Mains Neutral N

7 Generator Voltage R

8

9 Generator Voltage Y

10

11 Generator Voltage B

12 Generator Neutral N

13 Auxiliary Voltage[Negative]

14 Auxiliary Voltage [Positive]

15

16 Ignition On

17 SPARE

18 High Cylinder Temp (HCT)

19 MCB_CB

20 Over Speed

21 GCB_CB

22 LLOP

23 Emergency Stop

24

25 Load Current IR

26 Load Current IY

27 Load Current IB

28 Load Current IN

29 Room temp level (analog input)

30 Under Speed / *BTS2 voltage

31 Canopy Temp Hi

32 Charge Alternator

33 LOP

34 Low Water Level / *BTS3 voltage

35 Relay-HOOTER

36 Relay-DG STOP

37 Relay-FUEL

38 Relay-DG START

39 Relay-MBK

40 Relay-GBK

41

42

43 Relay- SPARE 0

44 Relay- SPARE 1

45 Relay- SPARE 2

46 Relay- SPARE 3

47 Relay- SPARE 4

48 Exchange Battery[Negative]

49 Exchange Battery[Positive]

50

51 Relay-SPARE 5

52 Relay-FAIL TO START

53 Relay-MAINS FAIL

54 Relay-ALT DG STOP

55 Relay-LLOP

56 Relay-LOW FUEL

57 Relay- FIRE ALARM

58 Fire Alarm

59 Room Temp Low (DI)

60 Door Open

61 Fuel Sensor 50%

62 Fuel Sensor 25%

NOTE : *BTS2 voltage and *BTS3 voltage are available

only in version 1.1

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16.2 Terminal Description

1

2

3

4

MainsVoltageR

MainsVoltageY

MainsVoltageN

MainsVoltageB 5

6

13AuxiliaryVoltage[-]

AuxiliaryVoltage[+]

29

30

UnderSpeed/*BTS2

CanopyTempHi

RoomTempLevel

LowWaterLevel/*BTS3

31

Fuel Sensor 50%

Fuel Sensor 25%

Fire Alarm

Room Temp Low

Door Open

Relay-Fail to Start

Relay-Mains Fail

Relay-Alt-DG-STOP

Relay-LLOP

Relay-Low Fuel

Relay-Fire Alarm

Relay-HOOTER

Relay-DG STOP

Relay-Fuel

Relay-DG START

Relay-MBK

Relay-GBK

Relay-SPARE 4

Exchange Battery[-]

Exchange Battery[+]

MAINS

VOLTAGE

DIGITALINPUT

S

ANOLOG

INPUT

RELAYPOTENTIALOUTPUTS

DIGITALINPUT

DIGITALINPUTS

RELAYPOTENTIALOUTPUTS

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

7

8

GeneratorVoltageY

GeneratorVoltageB

GeneratorVoltageR

GeneratorVoltageN12

11

9

10

DG

VOLTAGE

32

33

3

4

ChargeAlt

25

26

LoadCurrentIY

LoadCurrentIB

LoadCurrentIRCURRENT LoadCurrentIN

27

28

17

18

SPARE

HCTDIGITALINPUTS

16

IgnitionOn

14

15

Relay-SPARE 3

Relay-SPARE 2

Relay-SPARE 1

Relay-SPARE 0

Relay SPARE 5

61

62

Group

LOP

GCB_CB

LLOP

EmergencyStop

22

23

24

21

19

MCB_CB

OverSpeed 20

RS 232

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!

WAR

NING

PLEASEPROVIDEAP

PROPRIATEFUSES

ONCIRCUITWIRED

TOTERMINALS

35,36,37,38,39,40,52,53,54,55,55,56,57

Mains

G

Generator

Contractor

ConsumerLoad

1

2

3

4

5

6

7

8

+VE12V

-VE

11

12

N

N

Auxillary Voltage

Auxillary Voltage

13

14

15

16

17

18

19

20

21

22

242

9

30

31

LLOP

HCT

Spare

Ignition On

Emergency Stop

MCB_CB

GCB_CB

Fire Alarm

Room Temp Low

Door Open

Fuel Sensor 50%

Fuel Sensor 25%

35

3637

38

3940

52

53

54

55

56

57

RelayCard

60

61

Exchange Battery -

Exchange Battery +

+V48V

HOOTER

DGStopFuel

DGStart

MBK

GBK

FailtoStart

MainsFail

AltDGStop

LLOP

LowFuel

UR

UY

UB

UR

UY

UB

28

27

26

25

IR

IB

IYIR

IY

IB

OverSpeed

23

33

34

58

59

Under Speed/*BTS2

Charge Alternator

Low Water Level/*BTS3

32

FireAlarm

Room Temp Level

Contractor

91

0

Canopy Temp Hi

LOP

62

48

49

CTCommon

Com

mon

Fig2ConnectionDiagram

NOTE:*BTS2voltageand*BTS3voltageare

availableonlyinversion

1.1

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44, Okhla Industrial Estate, New Delhi -110 020 (INDIA)Phone : +91 11- 66602414, 30883745/54/64 Fax: +91 11- 66602413E-mail: [email protected] Web : www.cselectric.co.in

Marketing Offices :AHMEDABAD: +91 79 30074534/35/36 FAX : +91 79 30074519 BANGALORE: +91 80 25586147, 25594939 FAX : +91 25584839

BHUBANESWAR : +91 674 2507265 FAX : +91 674 2507265 CHANDIGARH : +91 172 272613, 3062624 FAX : +91 172 2726153

CHENNAI :+91 44 39180531/32/33/34 FAX :+91 44 39180514 DELHI : +91 11 30838822-25 Fax :+91 11 30838826 HYDERABAD :+91 40 27813003

FAX : +91 40 27812987 KOLKATA : +91 33 22275850/51 FAX : +91 33 22275849 MUMBAI : +91 22 24114727/28 FAX : +91 22 24126631

BASIC RANGE

Micro-controller based compact economical design

DIN rail mounted

Status indication via LED

Step-less settings through front potentiometer

FUNCTIONAL RANGE

Genset Supervision & Control

Auto Synchroniser

Load Balancing & Control

Related Protection

HIGH-TECH RANGE

Microprocessor based numerical protection

Event & fault recording

RS 485 communication

Bright alpha-numeric display

INTEGERATED RANGE Numeric protection, solution for sub-station in association

with INGETEAM T&D, Spain

Distance protection

Comprehensive transformer protection

a. Three winding transformerb. Two winding transformer

Multi-functional relay: variety of protection combination

Range of Protection Relays

C&S Electric Limited(Protection & Control Division)

ec2 plus

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