THOMSON MEC 310#GENSET CONTROLLER OPTION J-CANBUS... User manual

9087A – 198
th
Street, Langley, BC Canada V1M 3B1 Telephone [phone]
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MEC 310
GENSET CONTROLLER
INSTALLATION AND OPERATION MANUAL
r. 0472f
PM075 Rev 2 09/08/20

This description of options covers the following products:
MEC 310 SW version 1.2X.X

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 THOMSON TECHNOLOGY
Table of Contents
1. ABOUT THIS DOCUMENT................................................................................................................1
GENERAL PURPOSE .......................................................................................................................................1
INTENDED USERS ..........................................................................................................................................1
CONTENTS/OVERALL STRUCTURE .................................................................................................................1
2. WARNINGS AND LEGAL INFORMATION ....................................................................................3
LEGAL INFORMATION AND RESPONSIBILITY ..................................................................................................3
ELECTROSTATIC DISCHARGE AWARENESS ....................................................................................................3
SAFETY ISSUES .............................................................................................................................................3
FACTORY SETTINGS ......................................................................................................................................3
DEFINITIONS .................................................................................................................................................3
3. GENERAL PRODUCT INFORMATION ..........................................................................................5
INTRODUCTION .............................................................................................................................................5
TYPE OF PRODUCT ........................................................................................................................................5
STANDARD FUNCTIONS .................................................................................................................................5
OPTIONS .......................................................................................................................................................6
4. INSTALLATION INSTRUCTIONS....................................................................................................7
MOUNTING ...................................................................................................................................................7
TERMINALS ..................................................................................................................................................7
WIRING.......................................................................................................................................................11
BINARY INPUTS...........................................................................................................................................12
CHARGER ALTERNATOR CONNECTIONS.......................................................................................................13
CONNECTION OF THE 3-PHASE VOLTAGE AND CURRENT .............................................................................14
CONNECTION OF THE 1-PHASE 2-WIRE VOLTAGE AND CURRENT .................................................................14
CONNECTION OF THE 2-PHASE 3-WIRE VOLTAGE AND CURRENT .................................................................15
COMMUNICATION .......................................................................................................................................16
TECHNICAL INFORMATION ..........................................................................................................................21
5. PUSH-BUTTONS, LEDS AND DISPLAY ........................................................................................24
UNIT ...........................................................................................................................................................24
6. FUNCTIONAL DESCRIPTIONS......................................................................................................28
ALARM FUNCTION ......................................................................................................................................28
TIMER FUNCTION ........................................................................................................................................28
MAINS VOLTAGE UNBALANCE DETECTION ..................................................................................................29
PHASE SEQUENCE ERROR............................................................................................................................29
TPS 300 SOFTWARE INPUT CONFIGURATION...............................................................................................29
OUTPUT FUNCTIONS....................................................................................................................................31
ALARM INHIBIT...........................................................................................................................................39
ALARM INDICATION LEDS..........................................................................................................................43
PARAMETER GROUPS ..................................................................................................................................44
LANGUAGE SELECTION ...............................................................................................................................44
TRANSLATION.............................................................................................................................................45
FAIL CLASS .................................................................................................................................................46
SERVICE TIMERS .........................................................................................................................................47
COUNTERS..................................................................................................................................................48
COMMAND TIMER .......................................................................................................................................48
CONFIGURABLE VIEWS IN THE DISPLAY.......................................................................................................50
VDO SENSORS ...........................................................................................................................................54
BINARY INPUTS WITH CABLE SUPERVISION .................................................................................................58

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 THOMSON TECHNOLOGY
FUEL PUMP LOGIC .......................................................................................................................................59
ANALOGUE INPUTS 0(4)-20MA...................................................................................................................61
RPM INPUTS...............................................................................................................................................62
GENERATOR BREAKER CONTROL................................................................................................................64
TEST FUNCTION ..........................................................................................................................................65
M-LOGIC.....................................................................................................................................................67
BUZZER ......................................................................................................................................................68
UPGRADE OF FIRMWARE .............................................................................................................................69
GSM COMMUNICATION ..............................................................................................................................74
SMS ALARMS .............................................................................................................................................75
TPS 300 SOFTWARE CONNECTION VIA MODEM ..........................................................................................76
TPS 300 SOFTWARE COMMUNICATION SAFETY ..........................................................................................77
AUTO ENGINE START ..................................................................................................................................78
START SEQUENCES .....................................................................................................................................79
STOP SEQUENCES........................................................................................................................................84
5. PARAMETER LIST............................................................................................................................86
PARAMETER GROUPS ..................................................................................................................................86
SETUP .........................................................................................................................................................86
PARAMETER OVERVIEW..............................................................................................................................88
FAIL CLASS .................................................................................................................................................90
ENGINE ALARM SETTINGS (PROTECTION) ....................................................................................................91
MULTI-INPUTS ............................................................................................................................................95
BINARY INPUTS WITH WIRE BREAK .............................................................................................................95
ANALOGUE INPUTS 0(4)-20MA...................................................................................................................96
VDO INPUTS ..............................................................................................................................................98
RPM INPUT ..............................................................................................................................................100
HZ/V MONITORING SETTINGS....................................................................................................................107

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 1 THOMSON TECHNOLOGY
1. About this document
This chapter includes general user information about this handbook concerning the general purpose,
the intended users, the overall purpose and the overall contents and structure.
General purpose
This document is the Installation Instructions and Reference Handbook for Thomson Technology’s
MEC 310 Generator Controller. The document mainly includes installation instructions, presentation
of push-buttons, LEDs and display, functional descriptions and complete standard parameter lists.
The general purpose of the Installation Instructions and Reference Handbook is to provide the
information needed to install the unit correctly and to provide information about the functionality of
the unit and its applications. The handbook also offers the user the information he needs in order to
successfully set up the parameters needed in his specific application.
Intended users
The handbook is mainly intended for the person responsible for installing the unit and for the
person responsible for the unit setup. Naturally, others might also find useful information in the
handbook.
Contents/overall structure
The Installation Instructions and Reference Handbook is divided into chapters and in order to make
the structure of the document simple and easy to use, each chapter will begin from the top of a new
page. The following will outline the contents of each of the chapters.
About this document
This first chapter includes general information about this handbook as a document. It deals with the
general purpose and the intended users of the Installation Instructions and Reference Handbook.
Furthermore, it outlines the overall contents and structure of the document.
Warnings and legal information
The second chapter includes information about general legal issues and safety precautions relevant in
the handling of Thomson Technology products. Furthermore, this chapter will introduce note and
warning symbols, which will be used throughout the handbook.
General product information
The third chapter will deal with the unit in general and its place in the Thomson Technology product
range.
Please make sure to read this handbook before working with the MEC 310
controller and the gen-set to be controlled.
Failure to do this could result in
human injury or damage to the equipment.

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 2 THOMSON TECHNOLOGY
Installation instructions
This chapter includes the information needed to perform correct installation of the unit, e.g.
mounting instructions, terminals, wiring, inputs etc.
Push-buttons, LEDs and display
This chapter deals with push-button and LED functions. Furthermore, information about the display
including icon list is presented.
Functional descriptions
This chapter includes functional descriptions for the unit’s standard functions. Screen dumps and
flow charts are used in order to simplify the information.
Parameter list
This chapter includes a complete standard parameter list for setup. Therefore, this chapter is to be
used for reference, when information about specific parameters is needed.

MEC 310 GENSET CONTROLLER
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2. Warnings and legal information
This chapter includes important information about general legal issues relevant in the handling of
Thomson Technology products. Furthermore, some overall safety precautions will be introduced and
recommended. Finally, the highlighted notes and warnings, which will be used throughout the
document, are presented.
Legal information and responsibility
Thomson Technology takes no responsibility for installation or operation of the generator set. If there
is any doubt about how to install or operate the generator set controlled by the unit, the company
responsible for the installation or the operation of the set must be contacted.
Electrostatic discharge awareness
Sufficient care must be taken to protect the terminals against static discharges during the
installation. Once the unit is installed and connected, these precautions are no longer necessary.
Safety issues
Installing the unit implies work with dangerous currents and voltages. Therefore, the installation should
only be carried out by authorized personnel who understand the risks involved in working with live
electrical equipment.
Factory settings
The unit is delivered with certain factory settings. Given the fact that these settings are based on
average values, they are not necessarily the correct settings for matching the individual engine.
Thus precautions must be taken to check the settings before running the engine.
Definitions
Throughout this document a number of notes and warnings will be presented. To ensure that these
are noticed, they will be highlighted in order to separate them from the general text.
Notes
The notes provide general information which will be helpful for the reader to
bear in mind.
Be aware of the hazardous live currents and voltages. Do not touch any AC
measurement inputs as this could lead to injury or death.
The units are not to be opened by unauthorized personnel. If opened anyway, the
warranty will be lost.

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 4 THOMSON TECHNOLOGY
Warnings
The warnings indicate a potentially dangerous situation which could result in
death, personal inju
ry or damaged equipment, if certain guidelines are not
followed.

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 5 THOMSON TECHNOLOGY
3. General product information
This chapter includes overall product information about the unit in general and its place in the
Thomson Technology product range.
Introduction
The concept of the MEC 310 is to offer a simple and effective solution to gen-set builders, who
need a flexible yet cost-competitive protection and control unit for small and medium-sized
generators.
Type of product
The Generator Controller MEC 310 is a microprocessor-based control unit containing all necessary
functions for protection and control of a power generator. Besides the control and protection of the
diesel engine it contains a full 3-phase AC voltage and current measuring circuit. The unit is
equipped with an LCD display presenting all values and alarms.
Standard functions
Engine control
• Start preparation (preheating or prelubrication)
• Start/stop sequences with selectable number of start attempts
• Fuel solenoid selection (coil type)
• Idle speed control
• Local or remote start/stop
• Stop sequence with cooling down
• Command timers
• Shut down override (fire pump)
• Fuel logic
• Running speed detection selectable
o Generator Hz/V
o Charger alternator input (W terminal)
o Binary input (D+)
o Oil pressure
o RPM input
Engine monitoring
• 3 configurable inputs, all selectable between
o VDO or
o 0(4)-20mA from active transducer or
o Binary with cable supervision
• 6 binary inputs, configurable
• RPM input, selectable
o Magnetic pick-up
o NPN or PNP pick-up
o Tacho generator
o Charger alternator W terminal

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 6 THOMSON TECHNOLOGY
Generator monitoring
• 3-phase or single phase generator monitoring
o Voltage/current/frequency/power factor/power/reactive power
Generator protection (ANSI)
• Over-/undervoltage (27/59)
• Over-/underfrequency (81)
• Overcurrent (51)
• Reverse power (32)
• Voltage unbalance (60)
• Phase sequence error (47)
M-logic
• Simple logic configuration tool
• Selectable input events
• Selectable output commands
Clear text display
• 128 x 64 pixel backlight STN
• Alarm texts editable
• All texts in multi-language
• Clear text alarm messages
• Clear text diagnostics for both hardwired inputs and CANbus messages (J1939)
• Log book holding 150 log entries
• Real time clock for time and date
Options
The basic MEC 310 generator controller unit can be equipped with an AMF option needed to
provide a real emergency power system controller. Furthermore, CANbus communication for
different engine types is available and CANbus for up to two EAPs is possible at the same time.
Also Modbus RS485 is available as an option.
A full options list is included in the data sheet.

MEC 310 GENSET CONTROLLER
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4. Installation instructions
This chapter includes the information needed to perform correct installation of the unit, e.g.
mounting instructions, terminals, wiring, inputs etc.
Mounting
The unit is designed for flush mounting by means of 4 fixing clamps (IP52), which are included at
delivery. To have the IP65 (12 fixing clamps) the unit must be ordered with option L. The two fixing
clamps on each side are mounted on the top and bottom of the MEC 310 box.
Terminals
Unit rear view
For Use on a Flat Surface of a Type 1 Enclosure.
The RJ11 connector for the PC connection i
nterface (SSP) is placed on the side
of the unit.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
28 29 30 31 32 33 34 35 36 37 38
L1 N L2 NA L3 L1 N NA L2 NA L3
Mains Voltage Generator Voltage
+ 0 1 2 3
R21 R22 R23
com
DC
Power
supply
Status Multi functional
input
1 2 3 4 5 6
com Tacho com
Tacho w/capacitor
com
R24 R26
Binary inputs E-Stop
45 46
39 40 41 42 43 44
L1
Generator Current
L2
L3
49
50
51
52
53
54
55
56
57
58
59
Can L
com
Can H
Can 1 J1939
Option J
47 48
R45 R47
TX
com
RX
modbus
RS485
(option M)
EAP
Can 2
Can H
com
Can L

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 8 THOMSON TECHNOLOGY
Terminal Description
Term. Technical data Description
1 Power supply + 6…36V DC (UL/C-UL: 7.5…32.7V DC)
2 Power supply – GND
3-4 Status out. Contact ratings 1A 24V DC/V AC Resistive General status output for marine approvals**
9 Common Common for term. 10…15
10 Digital input Start enable/configurable
11 Digital input Remote start/stop/configurable
12 Digital input Charge alternator D+ (running)/configurable
13 Digital input Configurable
14 Digital input Coolant temperature/configurable
15 Digital input Oil pressure/configurable
19 Common Common for emergency stop term. 20
20 Emergency stop and common for 21…23 Common for relay 1, 2 and 3 and input for emergency stop*
21 Relay output 21. Contact ratings 2A 30V DC/V AC
(UL/C-UL: 1A Resistive)
Start prepare/configurable. Function NO
22 Relay output 22. Contact ratings 2A 30V DC/V AC
(UL/C-UL: 1A Resistive)
Starter (crank)/configurable. Function NO
23 Relay output 23. Contact ratings 2A 30V DC/V AC
(UL/C-UL: 1A Resistive)
Run coil/stop coil/configurable. Function NO
24-25 Relay output 24. Contact ratings 8A 30V DC/V AC
(UL/C-UL: 6A Resistive)
Horn/configurable. Function NO
26-27 Relay output 26. Contact ratings 8A 30V DC/V AC
(UL/C-UL: 6A Resistive)
Alarm/configurable. Function NO
Multi-functional inputs
5 Common Common for term. 6…8
6 VDO1/4...20mA/binary input Fuel level/configurable
7 VDO2/4...20mA/binary input Oil pressure/configurable
8 VDO3/4...20mA/binary input Water temp./configurable
Tacho RPM input
16 RPM input (MPU) Magnetic pick-up/tacho generator
17 RPM-GND Common for RPM input
18 RPM input (W/L) Magnetic pick-up. PNP, NPN or charge alternator W terminal
3-phase generator voltage input
33 Gen. voltage L1
34 Gen. neutral
35 Not used, must not be connected
36 Gen. voltage L2
37 Not used, must not be connected
38 Gen. voltage L3
Generator voltage and frequency
3-phase generator current input
39 Gen. current L1, s1
40 Gen. current L1, s2
41 Gen. current L2, s1
42 Gen. current L2, s2
Generator current. Use listed or R/C (XODW2,8) current
transformer.
• Must be installed in accordance wit
h the NEC (United States) or the
CEC(Canada)
• Wire size: AWG 30 – 12 (or equivalent)
• Use 60/75°C copper conductors only
• Tightening torque: 5-7 lb-in (or equivalent)
• Main disconnect shall be provided by installer

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 9 THOMSON TECHNOLOGY
43 Gen. current L3, s1
44 Gen. current L3, s2
Optional 3-phase mains voltage inputs (option A)
28 Mains voltage L1
29 Mains voltage neutral
30 Mains voltage L2
31 Not used, must not be connected
32 Mains voltage L3
Breaker relays
45 Relay R45 Contact ratings 2A 30V DC/250V AC
(UL/cUL Listed: Contact ratings 2A 30V DC/30V AC)
46 Relay R45
Generator circuit breaker/configurable, function NO
(normally open).
Optional relay for closing mains breaker (option A)
47 Relay R47 Contact ratings 2A 30V DC/250V AC
(UL/cUL Listed: Contact ratings 2A 30V DC/30V AC)
48 Relay R47
Mains circuit breaker/configurable, function NC (normally
closed). Option A.
Optional Modbus RS485 interface (option M)
49 B (-)
Modbus RS485 RTU or ASCII
50 GND
51 A (+)
Optional CANbus engine interface (option J)
53 CAN-H CAN J1939 engine communication
54 CAN-GND
55 CAN-L
Optional CANbus port #2: External I/O interface (feature EXP)
57 CAN-H
CAN communication port to External I/O
58 CAN-GND
59 CAN-L
* If terminal 20 is used for emergency stop, please see wiring diagram on page 15.
** The status relay is the uP watchdog output. This relay is normally energised, and the switch is
closed after power-up. If the uP fails or the power is lost, the relay will de-energize and the
switch will open. If the unit fails to start up at power-up, then the relay switch will remain open.
The binary output functions are configurable via the TPS 300 software and can be configured to
cover the following functions:
- Alarm/limit
- Engine running
- Horn
- Idle speed
- Not used
- Start prepare
- Run coil
- Starter
- Stop coil
- External heater
- Stop coil (not acc. in start seq.)
- Fuel pump
It is possible to choose run coil on one relay and stop coil on another, thus supporting engines with
double systems.

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 10 THOMSON TECHNOLOGY
The multi-functional inputs can be configured to cover the following functions:
- VDO sensor input
- 0…20mA input
- 4…20mA input
- Binary input with the possibility of cable supervision
Tacho RPM input (MPU) can be configured to cover the following functions:
- Magnetic pick-up (2-wire)
- NPN or PNP pick-up*
* These RPM inputs require external equipment.
Tacho RPM input with capacitor (M/L) can be configured to cover the following functions:
- Magnetic pick-up (2-wire)
- W terminal on charger alternator
- NPN or PNP pick-up*
* These RPM inputs require external equipment
The generator voltage and current input can be configured to the following:
- Voltage 100…25000V primary
- Current 5….9000A primary

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 11 THOMSON TECHNOLOGY
Wiring
15
9
Oil pressure
Coolant temp
Overspeed
Remote start
Start enable
R11
plug
Charging alternator
MEC 310
*: Term.12 can be used as
alarm input if not used for
charger generator terminal D+
Rex: 12V systems: 47 Ohm 4W
24V systems: 100 Ohm 6W
19
Converter
Programming
tool
12
Running
1N4007
Rex
D+ D-
R22
23
22
R21
20
21
R23
4
3
Alarm
R26
27
26
RUN coil
Start prep.
Emer. STOP
1
2
F
Battery
+
Status
10
11
13
14
24
Alarm Horn
R24
25
Starter
Engine communication
option
Multi-functional inputs
Binary input w. cable superv. VDO sensors
Multi-functional inputs
Can H
Can L
Com
MEC 310
53
54
55
4-20 mA transmitters
Multi-functional inputs
R= 100 Ohm
Magnetic pickup/
Tacho input
Tacho generator
Tacho input
NPN/PNP pickup W input from charger alternator
Tacho input
Modbus
option
B (-)
A (+)
GND
MEC 310
49
50
51
External I/O and
EAP300 feature
Can H
Can L
Com
MEC 310
57
58
59
VDO 3
VDO 1
8
7
6
5
VDO 2
MEC 310
+
-
3
1
8
7
6
5
2
MEC 310
+
-
+
-
3
1
2
R
8
7
6
5
MEC 310
R
R
17
16
MEC 310
out
+24 VDC
17
16
MEC 310
B+
W
17
18
MEC 310
B-

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Binary inputs
All binary inputs are 12/24V DC bi-directional optocoupler type. The typical wiring is illustrated
below:
12/24V DC
The illustrated
configuration is the default factory setting. The use of the relays
can be chosen freely.
It is important to protect the unit against damage caused by high voltages.
Therefore, the fuse must not be more than 2A.
The binary
inputs use fixed signals. Only the mode shift input and the test input
(if the timer is used) use pulse signal.
If a stop coil is used, the REX resistor can be connected to the starter relay
(crank).

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PM075 REV 2 09/08/20 Page 13 THOMSON TECHNOLOGY
Charger alternator connections
The charger alternator can be connected in 2 different ways:
1) Using the D+ terminal connected to terminal 12
2) Using the W terminal connected to the RPM input
Rex: Excitation resistor 12V systems: 47Ω4 W
24V systems: 100Ω6 W
At standstill the battery + is connected to terminal 9 (common), and a current flows to terminal 12
and via the D+ input on the alternator to ground (battery -). When the starter is engaged (cranking),
the battery will supply the D+ through the REX resistor, helping the alternator to excite. When the
alternator starts to produce voltage (excitation OK), the speed of the alternator will be above
running speed, and the voltage on term. 12 will rise to a value higher than the battery voltage and
then interrupt the current flow through REX and activate the running feedback input. Engine is
running.
Usually only one of these possibilities is used.
MEC 310
RPM
Starter
(crank)
Running
feedback
input
9
23
22
12
18
17
Rex
1N4007
+
-
Battery
B+
D+
W
Brush
Brush
Excitation
controller
Coil (rotor)
Exciter
Charge
alternator
U
V
W
Stator
If a stop coil is used, the REX resistor can be connected to the starter relay
(crank).

MEC 310 GENSET CONTROLLER
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Connection of the 3-phase voltage and current
Wiring, AC interface
Connection of the 1-phase 2-wire voltage and current
S2
S1
N
L1
U L1
33
36
U L2
40
L1 s2
39
L1 s1
Generator
voltages
current
Generator
N
L1
14
GB OFF feedback
Supply
Generator
MEC 310
GB ON command
45
46
CONSUMER
GB
U L3
38
34
Neutral
L2
L2
L3
L3
L2 s1
41
L2 s2
42
S1
S2
S2
44
L3 s2
S1
43
L3 s1
S2
S1
N
L1
U L1
33
36
Neutral
40
L1 s2
39
L1 s1
Generator
voltages
current
Generator
N
L1
14
GB OFF feedback
46
45
GB ON command
Supply
Generator
MEC 310
GB

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Connection of the 2-phase 3-wire voltage and current

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Communication
Wiring instructions
Cable
Belden 3106A or equivalent. 22 AWG (0.324 mm
2
) shielded twisted pair, min. 95% shield coverage.
Cable shield
Connect the cable shield to earth at one end only.
GND terminal connection
In case of communication problems, the GND terminals of the MEC 310 unit and the external
device can be linked together using a third wire.
CANbus Termination resistor
The size of the terminating resistors should be 120Ω1%, 0.5W resistor.
Option M, Modbus RTU
Connection with 3-wire shielded cable:
MEC310
Modbus Slave
A
49
GND
50
B
51
A
49
GND
50
B
51
A
49
GND
50
B
51
Data +
A
GND Data -
B
MEC310
Modbus Slave
MEC310
Modbus Slave
PLC
Modbus Master
Never connect the GND terminal to earth directly or through the shield!
If the GND terminal is connected to a PLC or other device, the GND connection
of this device must be isolated from earth!
Maximum length of the CANbus line is 400m.