THOMSON MEC 320 User manual

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MEC 320
SW version 3.3.X.X
OPERATOR’S MANUAL
•Display readings
•Push-button functions
•Alarm handling
•Log list
PM106 Rev 0 10/02/02

PM106 Rev0 10/02/02 Thomson Technology Page 1 of 20
Table of Contents
1. ABOUT THIS DOCUMENT...................................................................................................... 2
GENERAL PURPOSE ............................................................................................................................. 2
INTENDED USERS ................................................................................................................................ 2
CONTENTS/OVERALL STRUCTURE ....................................................................................................... 2
2. WARNINGS AND LEGAL INFORMATION.......................................................................... 3
LEGAL INFORMATION AND RESPONSIBILITY ........................................................................................ 3
ELECTROSTATIC DISCHARGE AWARENESS .......................................................................................... 3
SAFETY ISSUES ................................................................................................................................... 3
DEFINITIONS ....................................................................................................................................... 3
3. DISPLAY PUSH-BUTTONS AND LEDS................................................................................. 4
PUSH-BUTTON FUNCTIONS.................................................................................................................. 4
LED FUNCTIONS................................................................................................................................. 6
4. DISPLAY AND MENU STRUCTURE ..................................................................................... 8
LCD DISPLAY ..................................................................................................................................... 8
MENU STRUCTURE ............................................................................................................................. 8
STATUS LINE TEXT ............................................................................................................................ 12
5. ALARM HANDLING AND LOG LIST.................................................................................. 17
ALARM HANDLING............................................................................................................................ 17
LOG LIST........................................................................................................................................... 18

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1. About this document
General purpose
This document is the Operator’s Manual for THOMSON TECHNOLOGY’s Automatic Gen-
set Controller, the MEC320. The document mainly includes general product information,
display readings, push-button and LED functions, alarm handling descriptions and
presentation of the log list.
The general purpose is to give the operator important information to be used in the daily
operation of the unit.
Intended users
This Operator’s Manual is mainly intended for the daily user. On the basis of this document,
the operator will be able to carry out simple procedures such as start/stop and control of the
generator set.
Contents/overall structure
The document is divided into chapters, and in order to make the structure simple and easy to
use, each chapter will begin from the top of a new page.
Please make sure to read this handbook before working with the MEC320
controller and the gen-set to be controlled. Failure to do this could result in
damage to the equipment or human injury.

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2. Warnings and legal information
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 authorised personnel who understand the risks
involved in working with live electrical equipment.
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
Warning
The notes provide general information which will be helpful for the reader to
bear in mind.
The warnings indicate a potentially dangerous situation which could result in
death, personal injury or damaged equipment, if certain guidelines are not
followed.
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 unauthorised personnel. If opened anyway, the warranty will
be lost.

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3. Display push-buttons and LEDs
Push-button functions
The display unit holds a number of push-button functions which are described below.
ALARM STATUS: Shifts the display 3 lower lines to show the alarm list.
JUMP: Enters a specific menu number selection. All settings have a specific number
attached to them. The JUMP button enables the user to select and display any
setting without having to navigate through the menus (see later).
VIEW: Shifts the first line displaying in the setup menus. Push 2 sec. to switch to
master display in case more than 1 display is connected.
LOG: Displays the LOG SETUP window where you can choose between the Event,
Alarm and Battery logs. The logs are not deleted when the auxiliary supply is
switched off.
: Moves the cursor left for maneuvering in the menus.
: Increases the value of the selected set point (in the setup menu). In the daily
use display, this button function is used for scrolling the View lines in V1 or the
second line (in the setup menu) displaying of generator values.
ENTER: Is used to select the underscored entry in the fourth line of the display.
: Decreases the value of the selected set point (in the setup menu). In the daily
use display, this button function is used for scrolling the second line displaying
of generator values.
: Moves the cursor right for maneuvering in the menus.
EXIT: Jumps one step backwards in the menu (to previous display or to the entry
window).
Reset/Silence: Resets an alarm and or silence the horn
Event log: Shift the display three lower lines the alarm list
Lamp test: Push to test the LED’s on display unit and on EPA300 units.
RUN/Manual: Start of the gen-set if ‘SEMI-AUTO’ or ‘MANUAL’ is selected.
OFF: Stop of the gen-set if ‘SEMI-AUTO’ or ‘MANUAL’ is selected.
(GB) CLOSE: Manual activation of close breaker sequence if ‘SEMI-AUTO’ is selected.
(GB) TRIP: Manual activation of open breaker sequence if ‘SEMI-AUTO’ is selected.
(MB) CLOSE: Manual activation of close breaker sequence if ‘SEMI-AUTO’ is selected.
(MB) TRIP: Manual activation of open breaker sequence if ‘SEMI-AUTO’ is selected.
AUTO/MODE: Place the controller in “AUTO” mode.

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The push-buttons are placed as follows:
Alarm Status: Shift the display three lower lines the alarm list
Reset/Silence: Resets an alarm and or silence the horn
Event log: Shift the display three lower lines th
e alarm list
Trip the generator
breaker
Closes the generator
breaker
Trip the mains breaker
Closes the mains breaker
Off: Stop the gen-set if Semi-auto or
Manual is selected
View Shifts the first line
displaying in the setup
menus. Push 2 sec. to switch
to master display in case
more than 1 display is
connected.
Exit:: Jumps one step back
Enter: Selects the underscored entry in
the fourth display line.
Jump: Enter a specific menu number selection.
Lamp test
Auto/Mode: Place the controller in
“Auto” mode.
Run/Manual: Start the gen-set if
Semi-auto or Manual is selected

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LED functions
The display unit holds 10 LED functions. The colour is green or red or a combination in
different situations.
Alarm: LED flashing indicates that unacknowledged alarms are present.
LED fixed light indicates that all alarms are acknowledged, but some are still
present.
Power: LED indicates that the auxiliary supply is switched on.
Self check OK: LED indicates that the unit is OK.
Inhibit: LED fixed light indicates that an alarm is enabled but inhibited. Please refer
to Help in the PC utility software for description of inhibit settings.
Run/Manual: LED indicates that the generator is in semi-auto mode.
Run: LED green light indicates that the generator voltage/frequency is present
and OK.
(GB) Open: LED green light indicates that the generator breaker is closed.
LED yellow light indicates that the generator breaker has received a
command to close on a black BUS, but the breaker is not yet closed due to
interlocking of the GB.
LED is flashing yellow if the ‘Enable GB black close’ or the ‘GB spring
loaded’ signal is missing or the GB load time has not expired.
(GB) Closed: LED green light indicates that the generator breaker is closed.
LED yellow light indicates that the generator breaker has received a
command to close on a black BUS, but the breaker is not yet closed due to
interlocking of the GB.
LED is flashing yellow if the ‘Enable GB black close’ or the ‘GB spring
loaded’ signal is missing or the GB load time has not expired.
(MB) Open: LED indicates that the mains breaker is closed.
LED is flashing yellow if the ‘MB spring loaded’ signal from the breaker is
missing or the MB load time has not expired.
(MB) Closed: LED indicates that the mains breaker is closed.
LED is flashing yellow if the ‘MB spring loaded’ signal from the breaker is
missing or the MB load time has not expired.
(Mains) OK: LED is green, if the mains is present and OK.
LED is red at a measured mains failure.
LED is flashing green when the mains returns during the ‘mains OK delay’
time.
Auto: LED indicates that auto mode is selected.
Shutdown: The engine was shutdown.

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The display LEDs are indicating as follows:
Alarm:
Flashing: Unacknowledged
alarms present.
Fixed: Acknowledged
alarms present.
Power: Indicates auxiliary supply ON
Self check OK: Indicates self check OK
Inhibit: Indicates alarm inhibit active.
Generator OK.
Generator breaker Open
Generator breaker Closed
Mains breaker Open
Mains breaker Closed
Mains voltage OK
Run mode: Semi-auto ON.
Auto: ON. Semi-auto: OFF

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4. Display and menu structure
LCD display
The display is a backlit LCD text display containing 4 lines with 20 characters in each line.
There is no control of the display light intensity (no dimmer). Basically, all measured and
calculated values can be read in the display. These may be selected via the PC utility
software (TSP300).
Menu structure
The display includes two menu systems which can be used without password entry:
View menu system
This is the commonly used menu system. 15 windows are configurable and can be
entered by using the arrow push-buttons.
Setup menu system (not commonly used by the operator)
This menu system is used for setting up the unit, and if the operator needs detailed
information that is not available in the view menu system.
Changing of parameter settings is password protected.
Entry window
When the unit is powered up, an entry window appears. The entry window is the turning point in the menu structure
and as such the gateway to the other menus. It can always be reached by pushing the EXIT push-button 3 times.
The event and alarm list will appear at power up if an alarm is present.
For selection of values, see the Designer’s Reference Handbook.
MEC32