InteliLite4 AMF20 Global Guide
218
Step [-]
Comm object 11771 Related applications AMF,MRS
Config level Advanced
Setpoint visibility Only if Controller Mode (page 216) = GCB
Description
This setpoint adjusts control mode of GCB.
Internal
The breaker is controlled only from controller. Any unexpected change of GCB
FEEDBACK (PAGE 450) causesSd GCB Fail (page 561)immediately.
Incorrect reaction of the GCB FEEDBACK (PAGE 450) on internal GCB
Close/Open command causesSd GCB Fail (page 561)
External
Controller does not control the GCB at all.The GCB is controlled externally, when
the GCB FEEDBACK (PAGE 450) get changed, then the event "GCB Opened" or
"GCB Closed" is recorded to the history log.
Controller always accept the GCB FEEDBACK (PAGE 450) without of issuing any
alarm.
When the Sd protection shuts down the engine, the GCB stays closed. The BOC
protection does not open the GCB, controller goes to cooling when the BOC
protection is tripped (GCB stays closed until opened externally).
IMPORTANT: Gen-set with closed GCB is not blocked against starting.
No Button
GCB button and LBI GCB button are deactivated.
When selected in AMF mode, there is active warning Wrn Wrong GCB
Control Mode (page 551)
The behavior of the controller is the same as GCB Control Mode would be
switched to Internal
When selected in MRS mode and MAN mode the GCB is closed
automatically the same way as in Auto mode – no manual command needed.
IMPORTANT: Anytime when the controller is synchronizing via GCB the External GCB
closing is being accepted in all GCB control modes.
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