Thomson Power Systems Marathon MEC 20 Manuale di servizio
9087A – 198th Street, Langley, BC Canada V1M 3B1 Telephone (604) 888-0110
Telefax (604) 888-3381 E-Mail: info@thomsontechnology.com 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 1.81
PM047 Rev 12 03/03/04
MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 12 03/03/04 Thomson Power Systems
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 7
2.5. AC VOLTAGE INPUT 7
2.6. AC CURRENT INPUT 8
2.7. OUTPUTS 9
2.8. EXTERNAL PANEL CONTROL WIRING 9
2.9. REMOTE START CONTACT FIELD WIRING 10
2.10. REMOTE COMMUNICATION WIRING 10
2.11. EXPANSION OUTPUT MODULE LOCATION/INSTALLATION 11
2.12. MEC MOUNTING LOCATION/INSTALLATION 12
2.13. FACEPLATE MOUNTING DIMENSIONS 13
2.14. MEC 20 ASSEMBLY - SIDE VIEW 13
2.15. DIELECTRIC TESTING 14
3. DESCRIPTION 15
MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 12 03/03/04 Thomson Power Systems
3.1. LEXAN FACEPLATE 15
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 24
5. CONTROL OUTPUT CONTACT DESCRIPTIONS 29
5.1. RUN, CRANK, COMMON FAIL OUTPUT CONTACTS 29
5.2. PROGRAMMABLE OUTPUT CONTACTS 30
6. REMOTE COMMUNICATION OPTION 34
7. EXPANSION OUTPUT MODULE OPTION 38
8. EAP 110 REMOTE ANNUNCIATOR OPTION 41
9. OPERATING INSTRUCTIONS 42
9.1. MEC 20 POWER-UP OPERATION SEQUENCE 42
9.2. MEC 20 DISPLAY MENUS 42
9.3. SEQUENCE OF OPERATION 50
9.4. CONTROL PUSH-BUTTONS 57
10. PROGRAMMING INSTRUCTIONS 59
10.1. SECURITY PASSWORDS 59
MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 12 03/03/04 Thomson Power Systems
10.2. BASIC PROGRAMMING OPERATION 60
10.3. MAIN PROGRAMMING MENU 61
10.4. ANALOG FAULT PROGRAMMING MENU 69
10.5. DIGITAL FAULT PROGRAMMING MENU 70
10.6. CALIBRATION MENU 72
11. PROGRAMMING SHEETS 83
11.1. SUMMARY CONFIGURATION DATA SHEET 83
11.2. MAIN CONFIGURATION 84
11.3. ANALOG FAULT PROGRAMMING MENU 87
11.4. DIGITAL FAULT PROGRAMMING MENU 88
11.5. CALIBRATION MENU 89
12. SPECIFICATIONS 90
13. CONNECTION DIAGRAM 91
14. TROUBLE SHOOTING 92
15. NOTES 95
MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 12 03/03/04 1Thomson Power Systems
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
1.81 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 12 03/03/04 2Thomson Power Systems
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 12 03/03/04 Changed Oil pressure/resistance calibration data and new software
version 1.81.
Rev 11 02/09/09 Added descriptive information for new software version 1.8
MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 12 03/03/04 3Thomson Power Systems
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
all voltage monitoring, current monitoring and timing functions as well as providing many
MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 12 03/03/04 4Thomson Power Systems
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.
•Discharge body static charge before handling the equipment (contact a
grounded surface and maintain contact while handling the equipment, a
grounded wrist strap can/should also be utilized).
Indice
