Mains Voltage Unbalance Detection; Phase Sequence Error; Tps 300 Software Input Configuration - THOMSON MEC 310#GENSET CONTROLLER Installation And Operation Manual

The formula for mains voltage unbalance is:
(Most deviating line-to-line voltage - average voltage)*100/average voltage (nominal value in %)
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.
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
Test run
Nom. setting 3 1 ph
Alarm acknowledge
Parameter shift (secondary parameters)
Start enable (OFF = start blocked)
GB Pos on
GB Pos off
MB Pos on
MB Pos off
Access lock
Mode shift (auto/manual)
Fire pump
Remote start/stop
D+
Digital inputs no. 1....6 used as alarms
Idle speed
Inhibit EI alarms
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.
PM075 REV 2 09/08/20
MEC 310 GENSET CONTROLLER

Mains voltage unbalance detection

Phase sequence error

TPS 300 software input configuration

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Comment
Configurable
Configurable
Configurable
Configurable
Configurable
Configurable
Configurable
Configurable (option A)
Configurable (option A)
Configurable
Configurable
Configurable
Configurable
Configurable
Configurable
Configurable
Configurable (option J)
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