Mains Voltage Unbalance Detection; Phase Sequence Error; Utility Software Input Configuration - Deif GC-1F Installation Instructions Manual

Genset controller

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Operator's manual (9 pages)

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GC-1F

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 is incorrect (reversed), an alarm

will be issued and the breaker in question (generator or option B3 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 to 15).

Input function

Alarm acknowledge

Start enable (OFF = start blocked)

Remote start/stop

Access lock

Remote manual/auto

Fire pump (shutdown override)

D+ (digital running feedback)

Idle speed

Test sequence

GB Pos on

GB Pos off

Digital inputs no. 1 to 6 used as alarms

Inhibit EI alarms

Remote Start (pulse)

Remote Stop (pulse)

Remote Start and close (pulse)

Remote Open and stop (pulse)

EIC increase speed

EIC decrease speed

Remote GB open

Remote GB close

Island mode

GB close inhibit

Input function description

1. Alarm acknowledge

Acknowledges all present alarms.

2. Start enable

This input must be activated to start the engine.

3. Remote start/stop input

Activating this input will start the genset. Deactivating it will stop the genset after cool down

(auto mode only).

4. Access lock

Activating the access lock input deactivates the control push-buttons on the display and the

possibility to change parameters. It will be possible to view measurements, alarms and the

log.

DEIF A/S