THOMSON MEC 20 - V1.82 Manuale utente

9087A – 198th Street, Langley, BC Canada V1M 3B1 Telephone (604) 888-0110

Telefax (604) 888-3381 E-Mail: [email protected] www.thomsontechnology.com

MEC 20

MICROPROCESSOR

ENGINE/GENERATOR CONTROLLER

(WITH REMOTE COMMUNICATION, EXPANSION OUTPUT MODULE &

EAP 110 REMOTE ANNUNCIATOR OPTIONS)

INSTALLATION, OPERATING &

SERVICE MANUAL

Software Version 1.82

PM047 Rev 13 05/03/30

MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

PM047 Rev 12 03/03/04 Thomson Technology

CONTENTS

1. INTRODUCTION 1

1.1. PRODUCT REVISION HISTORY 1

1.2. GENERAL DESCRIPTION 3

2. INSTALLATION 5

2.1. GENERAL INFORMATION 5

2.2. BATTERY SUPPLY INPUT 5

2.3. SPEED SENSING INPUT 6

2.4. DC VOLTAGE INPUTS 6

2.5. AC VOLTAGE INPUT 7

2.6. AC CURRENT INPUT 8

2.7. OUTPUTS 8

2.8. EXTERNAL PANEL CONTROL WIRING 8

2.9. REMOTE START CONTACT FIELD WIRING 9

2.10. REMOTE COMMUNICATION WIRING 9

2.11. EXPANSION OUTPUT MODULE LOCATION/INSTALLATION 10

2.12. MEC MOUNTING LOCATION/INSTALLATION 11

2.13. FACEPLATE MOUNTING DIMENSIONS 11

2.14. MEC 20 ASSEMBLY - SIDE VIEW 13

2.15. DIELECTRIC TESTING 14

3. DESCRIPTION 14

MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

PM047 Rev 12 03/03/04 Thomson Technology

3.1. LEXAN FACEPLATE 14

3.2. PRINTED CIRCUIT BOARD 17

4. FAULT CIRCUIT DESCRIPTIONS 19

4.1. MEC 20 FUNCTIONAL BLOCK DIAGRAM 20

4.2. INTERNAL FAULT CIRCUITS 21

4.3. DIGITAL FAULT INPUT CIRCUITS 22

4.4. ANALOG FAULT INPUT CIRCUITS 23

5. CONTROL OUTPUT CONTACT DESCRIPTIONS 28

5.1. RUN, CRANK, COMMON FAIL OUTPUT CONTACTS 29

5.2. PROGRAMMABLE OUTPUT CONTACTS 29

6. REMOTE COMMUNICATION OPTION 34

7. EXPANSION OUTPUT MODULE OPTION 37

8. EAP 110 REMOTE ANNUNCIATOR OPTION 40

9. OPERATING INSTRUCTIONS 41

9.1. MEC 20 POWER-UP OPERATION SEQUENCE 41

9.2. MEC 20 DISPLAY MENUS 41

9.3. SEQUENCE OF OPERATION 48

9.4. CONTROL PUSH-BUTTONS 55

10. PROGRAMMING INSTRUCTIONS 57

10.1. SECURITY PASSWORDS 57

MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

PM047 Rev 12 03/03/04 Thomson Technology

10.2. BASIC PROGRAMMING OPERATION 58

10.3. MAIN PROGRAMMING MENU 59

10.4. ANALOG FAULT PROGRAMMING MENU 66

10.5. DIGITAL FAULT PROGRAMMING MENU 67

10.6. CALIBRATION MENU 70

11. PROGRAMMING SHEETS 80

11.1. SUMMARY CONFIGURATION DATA SHEET 80

11.2. MAIN CONFIGURATION 81

11.3. ANALOG FAULT PROGRAMMING MENU 84

11.4. DIGITAL FAULT PROGRAMMING MENU 85

11.5. CALIBRATION MENU 86

12. SPECIFICATIONS 87

13. CONNECTION DIAGRAM 88

14. TROUBLE SHOOTING 89

15. NOTES 92

MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

PM047 Rev 13 05/03/30 1Thomson Technology

1. INTRODUCTION

1.1. PRODUCT REVISION HISTORY

The following information provides an historical summary of changes made to this

product since the original release.

1.1.1. Software Version

1.82 05/03/30  Revised Idle Control Logic for Digital Inputs #1,2

 Increased High Temperature Analog Shutdown High Limit

1.81 03/03/04  Changed Oil Pressure Sender Manufacturer requiring revised

pressure/resistance calibration data

New Oil Pressure Sender Thomson p/n-003654, Manufacturer-

Datcon, p/n 102227.

Discontinued Oil Pressure Sender Thomson p/n-000772,

Manufacturer- Isspro, p/n R9279C

Note: The oil pressure senders are not interchangeable with the

software versions.

1.8 02/09/09  Added Programmable Output Feature “EPS Supplying Load”

 Added Digital Input Feature “No-Load Test”

 Added New Digital Fault Names

Basin Rupture

ATS in Bypass

Fuel Leak

Vent Damper Fail

High Fuel Level

Low Fuel Press

Bat Charger Fail

Fail to Sync

HighIntkManfTemp

 Added Independent Programming features for AMF Outputs

 Added references for EAP 110 Remote Annunciator

 Misc. Display & Menu changes

MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

PM047 Rev 13 05/03/30 2Thomson Technology

1.7 02/02/15 Key changes implemented as follows:

• Auto Mains Failure (AMF) logic with new timers, control outputs

and display features

• Line to Neutral AC Voltage Display on 3 Phase 4 Wire Systems

(neutral connection required)

• Analog Shutdown Capability from Oil Pressure and

Temperature Senders

• Expanded oil pressure operation up to 150 PSI (was 100 PSI)

• Single Point Calibration for Oil Pressure/engine temperature

sender inputs (simplified calibration, field calibration is now

mandatory)

• Programmable Output features now expanded to map to every

available fault circuit

Add new Programmable Output features Engine Ready & Engine

Run (Fuel)

There were also minor changes that are reflected in the manual.

1.6 01/07/18 Added Ready to load programmable output and new Isspro Oil

Pressure sender curves; increased standard digital & analog fault

features.

1.5 00/09/20 Added kVA metering.

1.4 99/12/09 Added new digital faults labels and blank selections.

1.3 98/02/09 New version with communication features, expansion relay module

capability, deletion of “horn” programming, deletion of cooldown

shutdown programmability, deletion of “common fail”

programmability and revised password number.

1.2 97/06/04 Original version.

1.1.2. Operating & Service Manual Version

Rev 13 05/03/30 Added descriptive information for new software version 1.82

Rev 12 03/03/04 Changed Oil pressure/resistance calibration data and new software

version 1.81.

MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

PM047 Rev 13 05/03/30 3Thomson Technology

Rev 11 02/09/09 Added descriptive information for new software version 1.8

Rev 10 02/02/15 Added descriptive information for new software version 1.7

Rev 9 01/10/17 Clarification of faults required for C282 or NFPA 110.

Rev 8 01/07/18 Addition of “Static Precaution”; deletion of calibration jumpers to

requiring external calibration resistors/potentiometers; standard

fault circuits increase from 12 to 28; Ready status changes to

“Ready to Load”; changes in temperature and pressure calibrations;

extended temperature ratings.

Rev 7 00/12/01 Minor text changes.

Rev 6 00/10/06 Added KVA metering feature.

Rev 5 00/04/06 Changes made to digital fault labels.

Rev 4 99/02/01 Remote communication wiring changes; multiple controllers that

can be connected changes from 5 to 10.

Rev 3 98/05/08 Corrected minor errors.

Rev 2 98/02/18 New version with communication features; expansion relay module

capability and revised password number.

Rev 1 98/01/22 Corrected minor errors.

Rev 0 97/06/04 Original release.

Contact Thomson Technology, to obtain applicable instruction manuals. Soft copy of

most current version is available at www.thomsontechnology.com.

1.2. GENERAL DESCRIPTION

The Thomson Technology MEC 20 Microprocessor-based Engine/Generator Controller

utilizes the latest advancements in microprocessor design technology for the control and

monitoring of engine-generator sets. The MEC 20 provides a comprehensive array of

operational, protection and display features for automatically controlling an

engine/generator set. All standard and optional features of the MEC 20 are configurable

from the front panel LCD display and are security password protected. The LCD display

screen prompts are in plain English, providing a user-friendly operator interface with

many display options available. The microprocessor design provides high accuracy for

MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER

PM047 Rev 13 05/03/30 4Thomson Technology

all voltage monitoring, current monitoring and timing functions as well as providing many

standard features which were previously only available as expensive add-on optional

features.

The MEC 20 provides the following advanced features:

• Up to 28 alarm/shutdown fault circuits utilizing analog and digital inputs.

• Standard model meets or exceeds CSA C282, NFPA 110 Level 1 generator set

control requirements.

• RS 422 remote communication port.

• Expansion output module communication port for individual output fault contact

capability.

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

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

output.

• Non-volatile memory retains logic and set points if control power is lost.

• Direct 3-phase voltage sensing inputs on generator supply from 120Vac up to

600Vac (nominal).

• Security 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 requirements.

• Dual microprocessor design provides independent speed sensing circuitry for higher

performance.

CAUTION

contents subject to damage by

STATIC ELECTRICITY

This equipment contains static-sensitive parts. Please observe the following anti-static

precautions at all times when handling this equipment. Failure to observe these

precautions may cause equipment failure and/or damage.

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