MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20
Page 29
THOMSON TECHNOLOGY
Mains voltage unbalance detection
The formula for mains voltage unbalance is:
(Most deviating line-to-line voltage - average voltage)*100/average voltage (nominal value in %)
Phase sequence error
Prior to closing a breaker the unit checks that the phase sequence is correct, depending on the
chosen phase direction in parameter 2280: “phase rotation”. If it’s incorrect (reversed), an alarm will
be issued and the breaker in question (generator or option A mains breaker) will not be closed and
the breaker’s LED will flash red.
TPS 300 software input configuration
It is possible to configure the inputs indicated in the table. The unit has a number of passive binary
inputs (input terminals 10-15).
Input function
Comment
Test run
Configurable
Nom. setting 3 1 ph
Configurable
Alarm acknowledge
Configurable
Parameter shift (secondary parameters)
Configurable
Start enable (OFF = start blocked)
Configurable
GB Pos on
Configurable
GB Pos off
Configurable
MB Pos on
Configurable (option A)
MB Pos off
Configurable (option A)
Access lock
Configurable
Mode shift (auto/manual)
Configurable
Fire pump
Configurable
Remote start/stop
Configurable
D+
Configurable
Digital inputs no. 1….6 used as alarms
Configurable
Idle speed
Configurable
Inhibit EI alarms
Configurable (option J)
Input function description
1.
Test run
When the test input is activated, the selected test sequence will start. Please see the test
function description for further information.
2.
Nom. setting 3 1 ph
Activates the third set of nominal settings, if the parameter 6026 is set to binary input. When
deactivated, the MEC 310 returns to Nom. setting 1.
3.
Alarm acknowledge
Acknowledges all present alarms.
4.
Parameter shift
Selection of this input will make the unit use the secondary set of parameters (SP2).
5.
Start enable
This input must be activated to start the engine.
Start enable is start control only, i.e. if removed when the engine is running, the
engine keeps on running.
