6. SWBD control
Activates switchboard control, that is all controls and commands will stop. Protections are still active.
7. Manual
Changes the present running mode to manual.
8. Alarm inhibit 1
Specific alarms are inhibited to prevent the alarms from occurring.
Essential protections might also be inhibited, if inhibit is used.
9. Remote GB ON
The generator breaker ON sequence will be initiated and the breaker will synchronise if the busbar voltage is
present, or close without synchronising if the busbar voltage is not present.
10. Remote GB OFF
The generator breaker OFF sequence will be initiated. In fixed frequency mode, the generator breaker will
open instantly. In any other mode, the generator load will be de-loaded to the breaker open limit followed by a
breaker open command.
11. Remote alarm acknowledge
Acknowledges all present alarms, and the alarm LED on the display stops flashing.
12. Ext. communication control
When the input is activated, the GPC is controlled from Modbus or Profibus only.
When load sharing mode is selected through the communication, the analogue load sharing
lines are used.
13. Reset analogue GOV/AVR outputs
The analogue +/-20 mA controller outputs will be reset to 0 mA.
All analogue controller outputs are reset. That is the governor output and the AVR output if op-
tion D1 is selected.
If an offset has been adjusted in the control setup, then the reset position will be the specific
adjustment.
14. Manual GOV up
If manual mode is selected, then the governor output will be increased.
15. Manual GOV down
If manual mode is selected, then the governor output will be decreased.
16. Manual AVR up
If manual mode is selected, then the AVR output will be increased.
17. Manual AVR down
If manual mode is selected, then the AVR output will be decreased.
GPC-3 DRH 4189340587 UK
Additional functions
DEIF A/S Page 38 of 122
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