AGC Designer’s Reference Handbook
DEIF A/S Page 100 of 168
22. Manual AVR down
If manual mode is selected, then the AVR output will be decreased.
23. Alarm inhibit
Specific alarms are inhibited to prevent the alarms from occurring. Refer to page 69.
24. Generator breaker closed feedback (GB position ON)
The input function is used as an indication of the generator breaker position. The unit requires
this feedback when the breaker is closed or a position failure alarm occurs.
25. Generator breaker open feedback (GB position OFF)
The input function is used as an indication of the generator breaker position. The unit requires
this feedback, when the breaker is opened or a position failure alarm occurs.
26. Mains breaker closed feedback (MB position ON)
The input function is used as an indication of the mains breaker position. The unit requires this
feedback, when the breaker is closed or a position failure alarm occurs.
27. Mains breaker open feedback (MB position OFF)
The input function is used as an indication of the mains breaker position. The unit requires this
feedback, when the breaker is opened or a position failure alarm occurs.
28. Emergency stop
The input shuts down the engine immediately. At the same time it opens the generator breaker.
29. External engine failure
This input is an alarm input that can be given one of all the selectable fail classes.
30. Low speed
Disables the regulators and keeps the gen-set running at a low RPM. All alarms set to ‘RUN’ will
be inhibited as long as the function is active.
31. Temperature control
This input is part of the idle mode function. When the input is high, then the gen-set starts. It
starts at high or low speed, depending on the activation of the low speed input. When the input is
deactivated, then the gen-set goes to idle mode (low speed = ON), or it stops (low speed =
OFF).
32. Battery test
Activates the starter motor without starting the gen-set. If the battery is weak, the test will cause
the battery voltage to drop more than acceptable, and an alarm will occur.
The manual governor and AVR increase and decrease inputs can only be used
in manual mode.
Essential protections might also be inhibited, if this input is used.
The governor must be prepared for this function.
The shut-down fail class must be selected.
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