ComAp IG-NT GC Reference Manual page 16

AUT mode
Automatic mode is influenced by ProcessControl: Island enable, ParallelEnable, Synchro enable setpoints.
1 YES YES FORWARD
2 YES NO NO
3 NO YES FORWARD
4 NO NO NO
NO NO FORWARD
NO YES NO
Following procedure corresponds to setting No.1 from table above.
1) After the input Rem start/stop is energized, controller starts the gen-set. If MCB feedack is active, the
controller will synchronize the gen-set to mains and ramp up the load, depending on the ProcessControl
set points adjustment.
2) If a mains failure is recognized, the controller will open the GCB to separate the failed mains from the
generator. After the mains breaker has been open (MCB feedback is de-energized), the controller will
close the GCB again to the island (stand-by) operation.
3) If mains recovers again, the GCB is open again to allow the MCB to be closed (manually or in general
not with a command from the controller). After both mains is present and MCB closed, the controller will
synchronize again with the healthy mains and close the GCB.
4) If input Rem start/stop is de-energized, controller will softly unload the gen-set back to the mains, then
open the GCB, cool down and stop the gen-set.
TEST mode
Use TEST mode for Gen-set start test if the Mains is OK or to transfer the load to the gen-set when Mains
fail is announced in advance.
H
INT
The controller does not respond to GCB ON/OFF , STOP, START in Return To mains = ENABLED.
Gen-set automatically starts, when TEST mode is selected.
Inteli NT GeCon-MARINE SPI, SW Version 3.2, ©ComAp – July 2015
IGS-NT-GeCon-MARINE-SPI-3.2.PDF
Function
Basic SPI application
SPM application
SPI application, no island (stand-by) operation
allowed
Gen-set start is blocked. Binary output
StartBlocked indicates those states.
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