Description Cooling
down
Stop Comment
Auto mode stop X X
Trip and stop alarm X X
Stop button on display (X) X Semi-auto or manual. Cooling down is interrupted if the
stop button is activated twice.
Remove "auto start/stop" X X Auto mode: island operation and load takeover.
Emergency stop X Engine shuts down and GB opens.
The stop sequence can only be interrupted during the cooling down period. Interruptions can occur in these
situations:
Event Comment
Mains failure AMF mode selected (or mode shift selected ON) and auto mode selected.
Start button is pressed Auto mode: engine will run in idle speed.
Binary start input Auto mode: island operation and load takeover.
GB close button is pressed Semi-auto and manual mode.
Setpoints related to the stop sequence
- Stop failure (4580 Stop failure)
A stop failure alarm will appear if the primary running feedback or the generator voltage and frequency are
still present after the delay in this menu has expired.
- Stop (6210 Stop)
Cooling-down:
The length of the cooling-down period.
Extended stop:
The delay after the running feedback has disappeared until a new start sequence is allowed. The extended
stop sequence is activated any time the stop button is pressed.
Cool down controlled by engine temperature:
The engine temperature-controlled cool-down is to ensure that the engine is cooled down below the setpoint
in menu 6214 "Cool down temperature" before the engine is stopped. This is particularly beneficial if the en-
gine has been running for a short period of time and therefore not reached normal cooling water temperature,
as the cool-down period will be very short or none at all. If the engine has been running for a long period, it
will have reached normal running temperature, and the cool-down period will be the exact time it takes to get
the temperature below the temperature setpoint in menu 6214.
If, for some reason, the engine cannot get the temperature below the temperature setpoint in 6214 within the
time limit in parameter 6211, the engine will be shut down by this timer. The reason for this could be high
ambient temperature.
If the cooling-down timer is set to 0.0 s, the cooling-down sequence will be infinite.
AGC 100 Designer's Reference Handbook
4189340766 UK
Functional descriptions
DEIF A/S Page 39 of 152
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