AGC Designer’s Reference Handbook
DEIF A/S Page 42 of 168
4 different types of running feedback can be used to detect if the motor is running. Refer to
menu 4300 for selection of the running feedback type.
The running detection is made with a built-in safety routine. The running feedback selected in
menu 4300 is the primary feedback. At all times all the types of running feedback is used for
running detection. If for some reason the primary choice is not detecting any running feedback,
the starter relay will stay activated for additionally 1 second. If a running feedback is detected
based on one of the secondary choices, the gen-set will start. This way the gen-set will still be
functional even though a tacho sensor is damaged or dirty.
As soon as the gen-set is running, no matter if the gen-set is started based on the primary or
secondary feedback, the running detection will be made based on all 4 types.
The sequence is shown in the diagram below.
Start sequence:
Stop coil
Start
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