THOMSON MEC 2 - V1.4 Manuel utilisateur
9087A – 198th Street, Langley, BC Canada V1M 3B1 Telephone (604) 888-0110
MEC 2
MICROPROCESSOR
ENGINE/GENERATOR CONTROLLER
(WITH EAP 110 REMOTE ANNUNCIATOR OPTIONS)
INSTALLATION, OPERATING &
SERVICE MANUAL
Software Version 1.4
PM056 Rev 6 05/10/15
MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 3Thomson Technology
CONTENTS
1. INTRODUCTION 1
1.1. PRODUCT REVISION HISTORY 1
1.2. GENERAL DESCRIPTION 3
2. INSTALLATION 4
2.1. GENERAL INFORMATION 4
2.2. BATTERY SUPPLY INPUT 4
2.3. SPEED SENSING INPUT 5
2.4. DC VOLTAGE INPUTS 6
2.5. AC VOLTAGE INPUT 6
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. MEC MOUNTING LOCATION/INSTALLATION 9
2.11. FACEPLATE MOUNTING DIMENSIONS 10
2.12. MEC 2 ASSEMBLY - SIDE VIEW 11
2.13. DIELECTRIC TESTING 12
3. DESCRIPTION 13
3.1. LEXAN FACEPLATE 13
3.2. PRINTED CIRCUIT BOARD 15
MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 4Thomson Technology
4. FAULT CIRCUIT DESCRIPTIONS 17
4.1. MEC 2 FUNCTIONAL BLOCK DIAGRAM 18
4.2. INTERNAL FAULT CIRCUITS 19
4.3. DIGITAL FAULT INPUT CIRCUITS 20
4.4. ANALOG FAULT INPUT CIRCUITS 21
5. CONTROL OUTPUT CONTACT DESCRIPTIONS 26
5.1. RUN, CRANK OUTPUT CONTACTS 26
5.2. PROGRAMMABLE OUTPUT CONTACT 27
6. EXPANSION OUTPUT MODULE OPTION 30
7. EAP 110 REMOTE ANNUNCIATOR OPTION 34
8. OPERATING INSTRUCTIONS 35
8.1. MEC 2 POWER-UP OPERATION SEQUENCE 35
8.2. MEC 2 DISPLAY MENUS 35
8.3. SEQUENCE OF OPERATION 43
8.4. CONTROL PUSHBUTTONS 49
9. PROGRAMMING INSTRUCTIONS 50
9.1. SECURITY PASSWORDS 50
9.2. BASIC PROGRAMMING OPERATION 52
9.3. MAIN PROGRAMMING MENU 53
9.4. ANALOG FAULT PROGRAMMING MENU 59
9.5. DIGITAL FAULT PROGRAMMING MENU 60
MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 5Thomson Technology
9.6. CALIBRATION MENU 62
10. PROGRAMMING SHEETS 73
10.1. SUMMARY CONFIGURATION DATA SHEET 73
11. MAIN CONFIGURATION 74
11.1. ANALOG FAULT PROGRAMMING MENU 76
11.2. DIGITAL FAULT PROGRAMMING MENU 77
11.3. CALIBRATION MENU 77
12. SPECIFICATIONS 80
13. CONNECTION DIAGRAM 81
14. TROUBLE SHOOTING 82
15. NOTES 85
MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 Thomson Technology
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1. INTRODUCTION
1.1. PRODUCT REVISION HISTORY
The following information provides an historical summary of changes made to this
product since the original release.
Software Version
1.4 05/10/15 Added AC protection faults Under/Over Voltage, Under/Over
Frequency and Over Current
Revised Idle circuit operation with digital faults #1 & 2
1.31 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.
1.3 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 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 Thomson Technology
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1.2 02/01/31 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)
3 Additional Programmable Outputs #2, #3, #4 Enabled
Programmable Output features now expanded to map to every
available fault circuit
Add new Programmable Output features Engine Ready &
Engine Run (Fuel)
Expansion Port Enabled for optional relay expansion board
There were also minor changes that are reflected in the manual.
1.1 01/07/24 Add “Ready to Load”; changes in temperature and pressure
calibrations; extended temperature
1.0 01/01/31 Original version
Operating & Service Manual Version
Rev 6 05/10/15 Added AC protection faults Over/Under Voltage, Over/Under
Frequency and Over Current for software version 1.4
Rev 5 03/03/04 Changed Oil pressure/resistance calibration data and new software
version 1.31.
Rev 4 02/09/09 Added descriptive information for new software version 1.3
Rev 3 02/01/31 Added descriptive information for new software version 1.2
Rev 2 01/07/25 Addition of “Static Precaution”; deletion of calibration jumpers to
requiring external calibration resistors/potentiometers; Ready status
changes to “Ready to Load”; changes in temperature and pressure
calibrations; extended temperature ratings.
Rev 1 01/02/15 Minor corrections.
Rev 0 01/01/31 Original release.
MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 Thomson Technology
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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 2 Microprocessor-based Engine/Generator Controller
utilizes the latest advancements in microprocessor design technology for the control and
monitoring of engine-generator sets. The MEC 2 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 2 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
standard features which were previously only available as expensive add-on optional
features.
The MEC 2 provides the following advanced features:
• Up to 15 alarm/shutdown fault circuits utilizing analog and digital inputs.
• Standard model meets or exceeds CSA C282, NFPA 110 Level 1 generator set
control requirements.
• 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 setpoints 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.
MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 Thomson Technology
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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).
• Do not touch any components on the printed circuit board with your hands or any
other conductive equipment.
• Do not place the equipment on or near materials such as Styrofoam, plastic and
vinyl. Place the equipment on grounded surfaces and only use an anti-static bag for
transporting the equipment.
2. INSTALLATION
2.1. GENERAL INFORMATION
NOTE:
Installations should be done according to all
applicable electrical regulation codes as
required.
The following installation guidelines are provided for general information only pertaining
to typical site installations. For specific site installation information, consult Thomson
Technology as required. Note: Factory installations of THOMSON TECHNOLOGY
supplied control panels that have been tested and proven may deviate from these
recommendations.
CAUTION!!!
All installation and/or service work performed must be done by qualified
personnel only. Failure to do so may cause personal injury or death.
2.2. BATTERY SUPPLY INPUT
The MEC 2 can operate on any battery supply from 10 to 30 volts DC. The battery DC
negative or common conductor must be grounded to the main generator-set frame
MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 Thomson Technology
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ground. The MEC 2 is internally protected by a solid state type fuse that protects it from
internal short circuits. The solid state fuse will automatically reset when the over current
condition is removed. Wiring from the engine cranking battery to the control panel should
conform to the following guidelines to avoid possible controller malfunction and/or
damage.
2.2.1. Avoid wiring from the engine starter terminals - wiring should go directly
from the battery terminals to the engine control panel (to avoid voltage drop in
the starter cables and starter motor commutator noise). Note: Unit mounted
control panels with short wiring runs may utilize connections from the starter
terminals provided that the specific application is tested satisfactorily.
CAUTION!!!
The battery charger must be turned off before battery cables are
removed from the battery (i.e. for servicing). Failure to do so may
subject the control panel to an over voltage condition in which
damage may result.
2.2.2. Wiring from battery to engine control panel should be two - #14 AWG
(2.5mm2) wires (i.e. do not use the engine block as one of the common
conductors).
2.2.3. Under noisy environments (i.e. gas engines with high voltage ignitions,
etc.), wiring from battery should be a twisted pair of #14 AWG (2.5mm2) wires.
2.3. SPEED SENSING INPUT
Field wiring of the speed sensing signal wires should conform to the following guidelines
to avoid possible controller malfunction and/or damage:
2.3.1. Wiring from magnetic pickup must utilize a 2 conductor shielded/twisted
cable. The drain (shield) wire must be connected at the control panel end only.
2.3.2. Magnetic pickup voltage at cranking speed must be greater than 3.0VAC.
At nominal speed, magnetic pickup voltage should be between 3 and 5VAC.
2.3.3. A single dedicated magnetic pickup is recommended for connection to the
speed sensing input terminals. Note: One common magnetic pickup may be
utilized for the system provided specific test measurements are done with the
equipment installed (i.e. mag pickup voltage levels meet the required levels).
Ce manuel convient aux modèles suivants
1
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