Inteli NT MINT, SW Version 2.6, ©ComAp – November 2011
IGS-NT-MINT-2.6-Reference Guide.PDF
50
Not lubricated
Output indicates the lubrication cycle (PrelubrTime) is not finished after controller Switch-on or return from
OFF mode or deactivation of Emergency stop signal.
Binary outputs – Breaker control
Hint:
Controllers are protected against simultaneoous closing of two or more GCBs to dead bus by means of
“hand-shake” signals on CAN bus communication.
GCB close/open
The output controls the generator circuit breaker. It is intended for contactors – provides a continual active
signal if GCB should be closed.
GCB ON coil
The pulse output for GCB closing. If GCB synchronizing is enabled, the pulse length is 2s, if not, pulse length
is 5s.
Hint:
ON coil can only be closed if UV coil is already active for at least 1s and
MinStab time
has elapsed.
GCB OFF coil
The pulse output for GCB opening. If GCB synchronizing is enabled, the pulse length is 2s, if not, pulse
length is 5s.
GCB UV coil
GCB undervoltage coil. Output is closed if generator values are within limits and GCB is ready to be closed.
It is opened if GCB should be open, and then closed again if generator electric values are in limits. If GCB
synchronizing is enabled, the opening pulse length is 2s, if not, pulse length is 5s.
Hint:
UV coil automatically opens and OFF coil closes if GCB is closed spontaneously, not from controller’s
activity. This state lasts until the GCB status has been deactivated.
The only exception is during synchronization state, as an external device is allowed to close the GCB.
GCB status
Indicates breaker state expected by controller (based on gen-set state, controller commands and breaker
feedback). Can be used for external indication of breaker status according to controller’s information.
MCB status
Indicates breaker state expected by controller (based on gen-set state, controller commands and breaker
feedback). Can be used for external indication of breaker status according to controller’s information.
