InteliLite 9 Global Guide
77
Note: If all generator parameters are OK and Minimal Stabilization Time (page 174) elapsed, indicates that GCB
is possible to close. In AUTO Mode GCB is closed in this moment automatically.
Note: The start-up sequence can be interrupted in any time by stop request
5.4.2 AMF sequence
State Condition of the transition Action Next state
Mains
operation
Mains failed or MCB FEEDBACK
(PAGE 309)
dropout,
MCB Opens
On (page 207)
= Mains Fail
MCB CLOSE/OPEN (PAGE 335)off,
Emergency Start Delay (page 200)
timer
started
Mains
failure
Mains failed or MCB FEEDBACK
(PAGE 309)
dropout,
MCB Opens
On (page 207)
= Gen Run
Emergency Start Delay (page 200)
timer
started
Mains
failure
Mains failure Mains voltage and frequency
OK,
MCB Opens On (page 207)
=
Mains Fail
After elapsing
MCB Close Delay (page 202)
MCB CLOSE/OPEN (PAGE 335) on
Mains
operation
Mains voltage and frequency
OK,
MCB Opens On (page 207)
=
Gen Run
None Mains
operation
Emergency Start Delay (page 200)
elapsed,
MCB Opens On (page
207)
= Mains Fail
Engine start sequence performed, then
GCB CLOSE/OPEN (PAGE 327) on
Island
operation
Emergency Start Delay (page 200)
elapsed,
MCB Opens On (page
207)
= Gen Run
Engine start sequence performed, then
MCB CLOSE/OPEN (PAGE 335) off, time
delay
Transfer Delay (page 201)
performed
and GCB CLOSE/OPEN (PAGE 327) on
Island
operation
Island
operation
Mains voltage and frequency OK
Mains Return Delay (page 200)
timer
started
Mains return
Mains return Mains failed Island
operation
Mains Return Delay (page 200)
elapsed
GCB CLOSE/OPEN (PAGE 327) off, then
after
Transfer Delay (page 201) MCB
CLOSE/OPEN (PAGE 335) on and then
engine stop sequence performed
Mains
operation
Note: Mains failed means mains over/under -voltage, over/under -frequency, voltage asymmetry (preset delay
must elapse)
Note: If during start-up sequence mains returns, then MCB is reclosed with delay MCB Close Delay (page 202)(if
opened, depending on MCB Opens On (page 207) setpoint) and start-up sequence is interrupted.
Note: If mains fails during stop procedure (cooling) again, stop sequence is interrupted, MCB opened and GCB
re-closed with Transfer Delay (page 201).
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