When the running hours counter has reached 1000 hours, the controller will reset the hours just for the oil renewal function. If, for
example, the set point has been set to 750 hours and inverse is not enabled, the relay will close at 750 hours and remain closed
until 1000 hours is reached, and then the hours counter starts from 0 hours again.
6.15 Breaker functions
6.15.1 Breaker types
There are five possible selections for the setting of breaker type for both mains breaker and generator breaker.
Continuous NE and Continuous ND
This type of signal is most often used combined with a contactor. When using this type of signal, the AGC will only use the close
breaker relays. The relay will be closed for closing of the contactor and will be opened for opening of the contactor. The open relay
can be used for other purposes. Continuous NE is a normally energised signal, and Continuous ND is a normally de-energised
signal.
Pulse
This type of signal is most often used combined with circuit breaker. With the setting pulse, the AGC will use the close command
and the open command relay. The close breaker relay will close for a short time for closing of the circuit breaker. The open breaker
relay will close for a short time for opening of the breaker.
External/ATS no control
This type of signal is used to indicate the position of the breaker, but the breaker is not controlled by the AGC.
Compact
This type of signal will most often be used combined with a compact breaker, a direct controlled motor driven breaker. With the
setting compact, the AGC will use the close command and the open command relay. The close breaker relay will close for a short
time for the compact breaker to close. The breaker off relay will close for the compact breaker to open and hold it closed long
enough for the motor in the breaker to recharge the breaker. If the compact breaker is tripped externally, it is recharged automatically
before next closing.
INFO
If compact breaker is selected, the length of breaker open signal can be adjusted. This can be done in menu 2160/2200.
DESIGNER'S HANDBOOK 4189341275A EN Page 130 of 196
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