InteliLite Global Guide
90
The control outputs must be configured and wiring of the power switches must be provided in such a way,
that the controller has full control over the breakers – i.e. the controller can open and close the breaker at any
time.
The breaker must respond within max. 5 seconds to a close and open command. Special attention should be
paid to opening of motorized circuit breakers, as it could take more than 5 seconds on some types. In such
cases it is necessary to use an undervoltage coil for fast opening.
After opening the breaker, there is internal delay for another closing of breaker. Delay is 6 seconds - 5
seconds for OFF coil and 1 second for UV coil. After these 6 seconds, breaker can be closed again. For
opening of breaker there is no delay.
Breaker control outputs
Close/Open
An output for control of a contactor. Its state represents the breaker position requested by the
controller. The breaker must react within 5 seconds to a close or open command, otherwise
an alarm is issued.
ON coil
An output giving a 5 second pulse in the moment the breaker has to be closed. The output is
intended for control of close coils of circuit breakers.
OFF coil
An output giving a pulse in the moment the breaker has to be opened. The pulse lasts until
the feedback deactivates, but at least for 5 seconds. The output is intended for control of
open coils of circuit breakers.
UV coil
The GCB UV coil output is active the whole time the gen-set is running (not in idle or cooling).
The output is deactivated for at least 5 seconds in the moment the breaker has to be
switched off. The output is intended for control of undervoltage coils of circuit breakers.
Image 5.18 Breaker control outputs
Breaker fail detection
Breaker fail detection is based on binary output breaker close/open comparing with binary input breaker
feedback.
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