THOMSON MEC 310#GENSET CONTROLLER User Manual

MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 64 THOMSON TECHNOLOGY
Generator breaker control
Breaker closing
Since the generator is assumed to run alone (single generator island), the breaker will close
immediately when the Hz/V OK status is reached (AUTO), or if the breaker close button is activated
(LOCAL). In LOCAL mode the breaker can be closed by pressing the GB close button on the front
of the MEC 310, when Hz/V is OK.
Relay output control
The generator breaker is assumed to be a contactor, i.e. the relay output is steady ON when the
breaker is closed, and steady OFF when the breaker is open. It is not possible to have 2 pulse
outputs for a motorised breaker (ON and OFF).
Breaker trip control
Any alarm selected to have the fail class
Trip
or
Shutdown
will automatically open the breaker
control relay. If the breaker is closed when the idle speed is activated, a breaker out signal will be
transmitted.
Breaker ON/OFF feedback
As default there is no feedback for breaker ON or OFF. The breaker position LED is paralleled to
the breaker control relay output. It is possible, however, to select a binary input to be breaker ON
feedback and/or an OFF feedback. This is done via an extra selection in the input settings of the
TPS 300 software. This extra input is called
GB Pos on
or
GB Pos off
.
This icon activates the inputs settings:
If the input
Breaker ON feedback
is selected, then the input must be connected and activated, if the
breaker is ON. The reason is that a
Breaker close failure
alarm will appear, if the breaker control
relay is activated without the binary input. Also, if the breaker control relay is OFF and the binary
input is ON, then a
Breaker open failure
alarm will appear.
These alarms are fixed with the fail class
Warning
.
Engine temperature controlled GB closing
This function can be used, if it is recommendable that the engine cooling water temperature must
be above a certain temperature before the engine is loaded. In the parameter 6360 it is possible to
set the cooling water temperature that must be exceeded, before the generator breaker is closed.
The function is also enabled/disabled in parameter 6360. An engine heating message is displayed,
until the engine cooling water temperature has reached the set point in parameter 6360.
The engine cooling water temperature sensor must be selected to be a VDO sensor to make the
function work. If the option A (AMF logic) is enabled, this function will also work upon a mains
failure.
Cool-down controlled by engine temperature
The engine temperature-controlled cool-down is to ensure that the engine is cooled down below the
set point in parameter 6213 “Cool-down temperature” before the engine is stopped. This is
particularly beneficial if the engine has been running for a short period of time, and therefore has
not achieved normal cooling water temperature, as the cool-down period will be very short or none

THOMSON MEC 310#GENSET CONTROLLER Specifications

General

Brand	THOMSON
Model	MEC 310#GENSET CONTROLLER
Category	Controller
Language	English