mec2

3815 Oregon Street • Oshkosh, WI 54902 • 1-800-872-7697 • Phone (920) 236-4200 • Fax (920) 236-4219 • www.baldor.com909 Perkins Drive • Mukwonago, WI 53149 • Phone (262) 363-1555 • Fax (262) 363-1556 • www.baldor.com

ISO 9001-2000

• Microprocessor-based circuitry provides ultimate reliability and versatility

• Standard features meet or exceed requirements as defined by NFPA 110 Level 1 and CSA C282

• Backlit LCD display screen with alpha-numeric readout for display and programming

• Digital 3-phase voltage, 3-phase current and frequency metering for generator output

• 16 alarm/shutdown fault circuits utilizing analog and digital inputs

• Alarm/shutdown indications are displayed in plain English language

• Auto mains failure (AMF) functionality

• Optional expansion output module for individual fault output contacts

• Password protected programming levels

• Self diagnostic features continuously verify processing, I/O and memory circuits

• Superior EMI/RFI noise immunity and surge performance features as per IEEE C62.41

• Certified to UL #508 and CSA 22.2 #14 Industrial Control Equipment Standards

• Quality Assurance System ISO 9001

GENERAL DESCRIPTION

The MEC 2 Microprocessor-based Engine/Generator Controller utilizes the latest advancements inmicroprocessor technology, printed circuit board assembly techniques and software development.The eighth generation of engine controllers reflects over 25 years of engine controller designexperience, including a decade utilizing microprocessors. The result is an automatic engine/generatorcontroller of superior design, providing a comprehensive array of operational, protection anddisplay features. All functions of the MEC 2 are fully configurable from the front panel keypad, and arepassword protected. The LCD display screen prompts are in plain English, providing a user-friendlyoperator interface with many display options available. The microprocessor design provides highaccuracy for all voltage monitoring, current monitoring and timing functions as well as providingmany standard features.

03 • 03 • 01

MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

Model MEC 2

“NEW”EAP 110

Remote AnnunciatorWith Data

Communication Link

STANDARD FEATURES

• Timers: Engine Start, Cooldown, Oil Bypass, Overcrank, Cycle crank• Control Switches: Run/Off/Auto/Load Test, Horn Silence, Lamp Test, Fault Reset• Emergency Stop: Faceplate mounted push-button and provision for remote contact input• LCD Display Menus: AC metering, timer countdown functions, alarm/shutdown indication,

engine parameters• LED Indicators: Switch position (run, off, auto, load test), Common alarm, Common

shutdown, Ready, Speed signal, Emergency stop, Mode of operation• AMF (Auto Mains Failure): Control outputs and timers to control external transfer mechanism (refer to manual)• Diagnostic LED Indicators: Watchdog (CPU running), run output energized, crank output energized,

remote start signal initiated, common fail output energized• Audible Alarm Horn: Programmable continuous or auto silence feature• Run & Crank Output Contacts: (10A/240Vac, 8A/24Vdc, Form A)• 4 Programmable Outputs: (10A/240Vac, 8A/24Vdc, Form C):

User configured function (refer to programming functions available)• Provision for Remote Contact Inputs: Emergency stop, Remote reset• Expansion Port: Provision for addition of Expansion Port Module (Refer to Options)• Engine Senders: Oil pressure (1/8" NPT), Temperature (1/4" NPT) supplied loose for engine mounting

Standard features meet or exceed requirements as defined by NFPA 110 Level 1 & CSA C282.Requires customer-supplied sensing contact.Generator supply must utilize a solidly grounded neutral system for standard panel connections.High Engine Temperature and Low Oil Pressure shutdowns are factory programmed to utilizeboth digital contact and analog sender inputs.

• Alpha-Numeric Readout: Display and Programming• Digital AC Metering: 3 phase voltage (Phase to Phase and Phase to Neutral), 3 phase current, kVA, frequency• Digital Engine Gauge Display: Oil Pressure, Engine Temperature, Hourmeter, Tachometer, DC Voltage• 16 Standard Fault Circuits:

SHUTDOWNS ALARMS• Undervoltage • Weak Battery • Low Fuel Level• Underfrequency • Low Battery Voltage • Switch Not in Auto• High Engine Temperature • High Battery Voltage• Low Oil Pressure • Battery Charger Input Fail• Overspeed • Low Engine Temperature• Loss of Speed Signal • High Engine Temperature• Overcrank • Low Oil Pressure

OPTIONAL FEATURES

• VFD Vacuum flourescent display for extended low temperature operation (-40°C)

• PM Additional Product Manual (One manual is included with each unit shipped)

• EXP 16 point relay expansion module for individual fault output contacts on MEC 2. Relay contacts are configurable(normally open or closed) and are rated 0.5A 120Vac, 1.0A 30Vdc resistive (maximum)

• EAP 110 Remote annunciator with data communication link. 20 light annunciator for NFPA 110 (Level 1) & CSA282-00 fault


All of the following items are field programmable using the front panel keypad and LCD display. A password code restricts access.

General Programming Digital/Analog Fault Input Programming (For Each Circuit)• System voltage (120 - 15000 volts) • Fault label description (choose from list)• System Frequency (50/60Hz) • Level set point (analog fault)• System Phases (single or 3 phase) • Shutdown or alarm• Voltage sensing ratio (1 - 208) • Latched or non-latched alarm• Current sensing ratio (1 - 999) • Remote reset (yes/no)• Engine Temperature units (deg. F / C) • Always active or after bypass delay• Oil Pressure units ( PSI / KPA) • Transient delay (0 - 99 sec.)• Engine start delay (0 - 999 sec.) • Fault contact open/close to fail (digital fault)• Crank time (0 - 99 sec.) Programmable Output Contact Functions• Rest time (0 - 99 sec) • Energize to stop• Starter re-engage cycle time (0 - 99 sec.) • Switch not in auto alarm• Number of crank attempts (0 - 99) • Preheat• Oil Bypass delay (0 - 99 sec) • Ready alarm status• Cooldown time (0 - 99 min.) • Engine run alarm status• Number of flywheel teeth (0-999 teeth) • Air flap• Nominal engine speed (0-4000 RPM) • Transfer switch load test• Crank disconnect set point (0 - 100%) • Oil Bypass Delay Expired• Overspeed set point (100 - 150%) • Common alarm• Run output fail safe activated (yes/no) • Common fail• Loss of speed signal (alarm/shutdown) • Ready to load• Common fail output for “not in auto” (yes/no) Analog Calibration Programming• Programmable output • Analog zero• Display menu time-out (60 - 999 sec) • Analog span

PROGRAMMING

SPECIFICATIONS

• Power supply: 10 to 30Vdc, negative ground • Power consumption: 5 watts (max.)• Operating temperature: -15°C to +50°C • Storage temperature: -20°C to +70°C• Environmental (Faceplate): NEMA 1 • Humidity: 5 to 95% non-condensing• Vibration: 4g, 5-250Hz • Dimensions: 10.75”W x 6.75”H x 2.0”D• Engine Gauge Display Accuracy: • AC Metering Accuracy: ± 1.0%, @ 25°C Volts, Amps

• Analog Oil Pressure Measurement: ± 2.0% @ 25°C KVARange: 15 PSI – 150 PSI (maximum)Pressure Accuracy: Operating range: 15 – 59 PSI = ± 6 PSI

Operating range: 60 – 75 PSI = ± 2 PSIOperating range: 76 – 150 PSI = ± 7 PSI

• Analog Engine Temperature Measurement:Range: 0 – 200°C (maximum)Temperature Accuracy: Operating range: 0 – 30°C = ± 8°C

Operating range: 30 – 100°C = ± 2°COperating range: 100 – 200°C = ± 8°C

• Inputs:Engine speed sensing 100 - 10,000Hz, 3.0 - 20Vac, rmsAC Voltage 120 - 600Vac (nominal), 0.1VA, 3 phase, 50/60HzAC Current 0 - 5Aac (nominal), 1.5VA, 3 phaseEngine Parameters Dedicated Senders (supplied loose)Digital Fault Contacts Open or Close to DC Negative

• Output Contacts:Run, Crank 10A/240Vac, 8A/24Vdc resistive, (3A inductive, 0.4pf) Form AProgrammable 10A/240Vac, 8A/24Vdc resistive, (3A inductive, 0.4pf) Form C


NOTE: Specifications subject to change without notice.

REV 2 03/03/01

28

29

30

1

1

1

1

1

1

VA

VB

VC

VA

VB

VC

N

1A

1A

1A

VN

IA

IB

IC

IN

OA

OB

OC

GENERATOR OUTPUT CURRENT SENSINGTRANSFORMERS5Aac SECONDARY(DELETE PHASE CFOR SINGLE PHASESYSTEMS)

GENERATOROUTPUT VOLTAGE120Vac TO 600Vac3 PHASE OR SINGLEPHASE 3(DELETE PHASE VCFOR SINGLE PHASE SYSTEMS)

GRD

PROGRAMMABLECONTACT # 1

31

32

33


34

35

36


22

21

20


B +

B -

GRD

GRD

1

2

3

4

RUN CIRCUIT(FUEL SOL., GOV.)

CRANK

12/24 VdcBATTERY

RUN

23

24

18

19

MP1

MP2

37

38

13

14

15

16

17

SPEED SENSINGMAGNETIC PICKUP

OIL PRESSURE SENDER

CRCRANK PILOT RELAY

RUN CIRCUIT

ENGINE TEMPERATURESENDER

REMOTE FAULT RESET(CLOSE TO INITIATE)

REMOTE EMERGENCY STOP(CLOSE TO INITIATE)

REMOTE STARTCONTACT

DIGITAL FAULT INPUTCONTACTS #1 TO #4

NOTES:

1 CONTACTS RATED MAXIMUM 10A/240Vac, 8A/24Vdc RESISTIVE

2 LOGIC IS SOFTWARE PROGRAMMABLE FOR OPEN OR CLOSE ON FAIL

3 GENERATOR SUPPLY MUST UTILIZE A SOLIDLY GROUNDED NEUTRAL SYSTEM–REFER TO INSTRUCTION MANUAL FOR ALTERNATE CONNECTIONS

MEC 2

GRD

4

4

4 2

4

4

4 ENGINE MOUNTED COMPONENTS

5 "GRD" CONNECTION TO BE MADE TO COMMON CHASSIS/ENCLOSURE GROUND BOND SYSTEM

ConnectionDiagram

7

– + 10A

4


* Overcrank * Switch Not in Auto * Low Battery Voltage* Overspeed * Low Fuel Level 2 * High Battery Voltage* Loss of Speed Signal * Low Engine Temperature * Weak Battery* Low Oil Pressure 2 * Low Oil Pressure Pre-Alarm * Battery Charger Input Fail 2 3

* High Engine Temperature 2 * High Engine Temp. Pre-Alarm * Underfrequency* Emergency Stop * Undervoltage * Overfrequency* Overvoltage * Overcurrent (definite time) * Spare fault inputs (qty 8)

STANDARD FEATURES

OPTIONAL FEATURES

• Digital AC Metering: 3 phase voltage 4 , 3 phase voltage, 3 phase current, KVA, frequency• Digital Engine Gauge Display: Oil pressure, Engine temperature, Battery Voltage, Hourmeter, Tachometer• 28 Standard Fault Circuits:

• Timers: Engine Start, Cooldown, Oil Bypass, Overcrank, Cycle crank• Control Switches: Run/Off/Auto/Load Test, Horn Silence, Lamp Test, Fault Reset• Emergency Stop: Faceplate mounted push-button and provision for remote contact input• LCD Display Menus: AC metering, timer countdown functions, alarm/shutdown indication,

engine parameters• LED Indicators: Switch position (run, off, auto, load test), Common alarm, Common

shutdown, Ready, Speed signal, Emergency stop• Diagnostic LED Indicators: Watchdog (CPU running), run output energized, crank output energized,

remote start signal initiated, common fail output energized• Audible Alarm Horn: Programmable continuous or auto silence feature• Run & Crank Output Contacts: (10A/240Vac, 8A/24Vdc, Form A)• Common Fail Output Contact: (10A/240Vac, 8A/24Vdc, Form C)• 4 Programmable Output Contacts: (10A/240Vac, 8A/24Vdc, Form C): User configured function

(refer to programming functions available)• Engine Senders: Oil pressure (1/8" NPT), Temperature (1/4" NPT) supplied loose

for engine mounting• Future Remote Communication Capability: Every standard MEC 20 controller can be field upgraded.

Consult factory for additional information.1 Standard features meet or exceed requirements as defined by NFPA 110 Level 1 & CSA C282.2 Requires customer-supplied sensing contact.

3 For CSA C282 applications, Battery Charger Input Fail alarm is reconfigurable as Low Coolant Level Shutdown.

4 Generator supply must utilize a solidly grounded neutral system for standard panel connections.

Shutdowns Alarms

• COM MEC 20 remote communication port (RS422). Can be used in conjunction with external Communication Interface Module (CIM module not included).

• CIM Communication Interface Module with internal 14.4Kbaud modem, RS232/422/485 ports and Modbus™ protocol. One CIM module provides communication interface for up to ten MEC 20 controllers with COM per system.

• EXP 16 point relay expansion module for individual fault output contacts on MEC 20. Specify number of expansion modules required (one module required for standard fault circuits, two modules required for standard and optional fault circuits). Relay contacts are configurable (normally open or closed) and are rated 0.5A 120Vac, 1.0A 30Vdc resistive (maximum)

• VFD Vacuum flourescent display for extended low temperature operation (-40°C)

• PRG Custom programming of features (provides up to 6 custom fault labels)

• PM Additional Product Manual (One manual is included with each unit shipped)


All of the following items are field programmable using the front panel keypad and LCD display.A password code restricts access.General Programming Digital/Analog Fault Input Programming (For Each Circuit)• Node Address (1 - 255) • Fault label description (choose from list)• System voltage (120 - 15000 volts) • Level set point (analog fault)• System Frequency (50/60Hz) • Shutdown or alarm• System Phases (single or 3 phase) • Latched or non-latched alarm• Voltage sensing ratio (1 - 208) • Remote reset (yes/no)• Current sensing ratio (1 - 999) • Always active or after bypass delay• Engine Temperature units (deg. F / C) • Transient delay (0 - 99 sec.)• Oil Pressure units ( PSI / KPA) • Fault contact open/close to fail (digital fault)• Engine start delay (0 - 999 sec.)• Crank time (0 - 99 sec.) Programmable Output Contact Functions• Rest time (0 - 99 sec) (select only one function per output used)• Starter re-engage cycle time (0 - 99 sec.) • Energize to stop• Number of crank attempts (0 - 99) • Idle control• Oil Bypass delay (0 - 99 sec) • Pre-lube/post-lube/cycle-lube control• Cooldown time (0 - 99 min.) • Switch not in auto alarm• Number of flywheel teeth (0-999 teeth) • Overcurrent• Nominal engine speed (0-4000 RPM) • Preheat• Crank disconnect set point (0 - 100%) • Ready alarm status• Overspeed set point (100 - 150%) • Engine run alarm status• Run output fail safe activated (yes/no) • Air flap• Loss of speed signal (alarm/shutdown) • Transfer switch load test• Remote Start signal (open or close to run) • Oil Bypass Delay Expired• Common fail output for “not in auto” (yes/no) • Common alarm• Programmable output #1, 2, 3, 4, 5, 61 • Common fail• Post lube duration (0 - 999 min.) • Ready to load• Cycle lube interval (1- 9999 min.)• Cycle lube duration (0 - 999 min.) Analog Calibration Programming• Horn duration (0 = continuous, 1- 999 sec) • Analog zero• Display menu time-out (60 - 999 sec) • Analog span

1 Programmable outputs #5 & #6 are available only with option EXP

PROGRAMMING

SPECIFICATIONS

• Power supply: 10 to 30Vdc, negative ground • Power consumption: 5 watts (max.)• Operating temperature: -15°C to +50°C • Storage temperature: -20°C to +70°C• Environmental (Faceplate): NEMA 12 • Humidity: 5 to 95% non-condensing• Vibration: 4g, 5-250Hz • Dimensions: 10.75”W x 6.75”H x 2.0”D• Engine Gauge Display Accuracy: ± 1.0% @ 25 °C • AC Metering Accuracy: ± 1.0%, @ 25°C Volts, Amps

(plus sender accuracy ± 5.0%) ± 2% @ 25°C KVA• Inputs:

Engine speed sensing 100 - 10,000Hz, 3.0 - 20Vac, rmsAC Voltage 120 - 600Vac (nominal), 0.1VA, 3 phase, 50/60HzAC Current 0 - 5Aac (nominal), 1.5VA, 3 phaseEngine Parameters Dedicated Senders (supplied loose)Digital Fault Contacts Open or Close to DC Negative

• Output Contacts:Run, Crank 10A/240Vac, 8A/24Vdc resistive, (3A inductive, 0.4pf) Form AProgrammable, Common Fail 10A/240Vac, 8A/24Vdc resistive, (3A inductive, 0.4pf) Form C


22

21

20

1

34

35

36

1

31

32

33

1

28

29

30

1

25

26

27

1

1

1

VA

VB

VC

VA

VB

VC

N

1A

1A

1A

VN

1A

1B

1C

1N

GENERATOR OUTPUT CURRENT SENSINGTRANSFORMERS5Aac SECONDARY(DELETE PHASE CFOR SINGLE PHASESYSTEMS)

5

GENERATOROUTPUT VOLTAGE120Vac TO 600Vac3 PHASE OR SINGLEPHASE 4(DELETE PHASE VCFOR SINGLE PHASE SYSTEMS)

GRD

COMMON FAIL CONTACT(OPERATES ON AN ALARM ORSHUTDOWN CONDITION)

PROGRAMMABLECONTACT #1




B +

B -

GRD

GRD

1

2

3

4

5

6

7

8

9

10

11

12

RUN CIRCUIT(FUEL SOL., GOV.)

CRANK

12/24 VDCBATTERY

RUN

23

24

18

19

MP1

MP2

37

38

13

14

15

16

17

SPEED SENSINGMAGNETIC PICKUP

OIL PRESSURE SENDER

CRCRANK PILOT RELAY

RUN CIRCUIT

ENGINE TEMPERATURESENDER

REMOTE FAULT RESET(CLOSE TO INITIATE)

REMOTE EMERGENCY STOP(CLOSE TO INITIATE)

REMOTE STARTCONTACT

DIGITAL FAULT INPUTCONTACTS #1 TO #12

NOTES:

1 CONTACTS RATED MAXIMUM 10A/240Vac, 8A/24Vdc RESISTIVE

2 CONTACT TO CLOSE TO INITIATE STARTING

3 LOGIC IS SOFTWARE PROGRAMMABLE FOR OPEN OR CLOSE ON FAIL

4 GENERATOR SUPPLY MUST UTILIZE A SOLIDLY GROUNDED NEUTRAL SYSTEM–REFER TO INSTRUCTION MANUAL FOR ALTERNATE CONNECTIONS

MEC 20

GRD

6

6

6

2

3

6

6

5 NEUTRAL CONNECTION IS REQUIRED FOR SINGLE PHASE SYSTEMS ONLY

6 ENGINE MOUNTED COMPONENTS

7 "GRD" CONNECTION TO BE MADE TO COMMON CHASSIS/ENCLOSURE GROUND BOND SYSTEM

ConnectionDiagram

7

– + 10A

6

NOTE: Specifications subject to change without notice.

REV 4 01/07/15


ISO 9001-2000

The Remote Communication System provides remote monitoring and control of microprocessor-based controllersas used in the power generation industry. The Communication Interface Module (CIM) is a hardware interface devicewhich allows two way data transfer between microprocessor-based controllers (such as models MEC 20 or TSC 800)and a remote monitoring/controlling system. Utilizing Modbus™ protocol, the CIM can be integrated with buildingmanagement systems, programmable logic controllers (PLC’s) or used with a stand alone personal computer (PC).For remote monitoring and control applications utilizing a stand alone PC, model THS 2000 Host Softwarewhich operates on standard IBM™ compatible PCs. THS 2000 is a user friendly, Windows™-based softwareprogram with pre-configured graphic screens showing operational status and analog data of connected controllers.

GENERAL DESCRIPTION

ADVANCED FEATURES• Automatic callout from a generator site to a remote monitoring PC when a generator system or transfer switch activity

occurs, such as a fault or status change. Up to three phone numbers can be programmed using 32 digit numbers tosupport pager use.

• Remote communication via telephone system (with modems) or a direct connected serial communication link usingRS-232, -422 or -485 transmission types.

• The THS 2000 program is designed for use with standard Windows 95™/Windows 98™, Windows NT™ andWindows 2000™ operating systems.

• One CIM module can control and monitor up to ten controllers at a generator site using a singletelephone line or direct connected serial link.

• Direct connect configuration for applications not requiring Modbus protocol, auto-callout and the need to communicate to multiple controllers.

• Communication system parameters are configured in software using the THS 2000 program.

• A three level password protected security system is provided to prevent unauthorized useraccess to a generator system.

DEVELOPMENT ASSISTANCE PROVIDED BY THE SCIENCE COUNCIL OF BC

Typical Remote Communication System

MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

00 • 11 • 01

REMOTE COMMUNICATION SYSTEM

THS 2000 Software with CIM Module


Generator Control Panel

Specifications

Type: Solid State

Size: Height 12.00 in. 305 mmWidth 18.00 in. 508 mmDepth 10.00 in. 305 mm

Weight: 30 lbs. (13.5 kg)

Power Supply: 12 or 24 VDC

Panel Specifications:

• Operates at 50 or 60 Hertz.

• Removable top cover allows easy access to wiring.

• NEMA 1 type enclosure, shock mounted.

• AC meters comply with ANSI C39.1 and IP H2.

• Engine instruments meet SAE standardspecifications.

• Protection – circuit breaker protects 12 or 24 voltengine, control wiring and components fromoverloads.

• Three AC line fuses for meter protection.

Auto-Start Specifications:

• Solid state LED indicators for long life.

• Plug in auto-start/overspeed for ease of service.

• CMOS logic and FET output transistors used toprovide long life, reliability and no maintenance.

• LED lights on circuit board indicate engine status,such as cranking, running, auto start ready, etc.

Standard Design Features

Engine Instrument Section

Engine Gauges Include:

• Engine oil pressure

• Engine coolant temperature

• Battery voltage

• Running time meter

Engine gauges are 12 or 24 volt DC electric type,2 1/8” (54 mm), ± 5% accuracy.

Engine gauges indicate both English and Metric unitsand include international symbols.

Includes manual engine start control switch.

Includes a minimum of three alarm lights for thefollowing fault conditions:

• Overspeed

• Low oil pressure

• High coolant temperature

Generator Control Section

AC Meters Include:

• AC Voltmeter

• AC Ammeter

• AC Frequency Meter

Meters are 3.5 inch (89) mm, ±2% accuracy. Includesammeter/voltmeter selector switch for monitoring linevoltage and current in each phase. Three tape woundcurrent transformers included.


3815 Oregon Street • Oshkosh, WI 54902 • 1-800-872-7697 • Phone (920) 236-4200 • Fax (920) 236-4219909 Perkins Drive • Mukwonago, WI 53149 • Phone (262) 363-1555 • Fax (262) 363-1556

World HeadquartersBaldor Electric Company • P.O. Box 2400 • Fort Smith, AR 72902-2400 U.S.A.Phone (479) 646-4711 • Fax (479) 648-5792 • International Fax (479) 648-5895

www.baldor.com

© Baldor Electric Company Printed in the U.S.A.FM2493CP 5/05 FARR 5000

mec2

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