ComAp InteliLite NT AMF Series - AUT and TEST Mode Operation; AUT Mode and AMF Sequence; TEST Mode Operation

InteliLite
NT
– AMF20/25, SW version 1.2, ©ComAp – March 2008 64
IL-NT-AMF-Reference Guide1.2.pdf
AUT Mode
The controller does not respond to buttons START, STOP, MCB ON/OFF, GCB ON/OFF. Engine
start/stop request is evaluated form Mains failure/return.
AMF sequence (simplified)
State Condition of the transition Action Next state
Mains failed
1
or MCB feedback dropout
MCB Opens On = MAINSFAIL
MCB CLOSE/OPEN off
EmergStart Del timer
started
Mains failure
Mains
operation
Mains failed
1
or MCB feedback dropout
MCB Opens On = GENRUN
EmergStart Del timer
started
Mains failure
Mains voltage and frequency OK
MCB Opens On = MAINSFAIL
After elapsing
MCB Close
Del
MCB CLOSE/OPEN
on
Mains operation
Mains voltage and frequency OK
MCB Opens On = GENRUN
None Mains operation
EmergStart Del elapsed
MCB Opens On = MAINSFAIL
Engine start sequence
performed, then
GCB CLOSE/OPEN on
2
Island operation
Mains
failure
EmergStart Del elapsed
MCB Opens On = GENRUN
Engine start sequence
performed, then MCB
CLOSE/OPEN off, time
delay
Fwd Return Del
performed and GCB
CLOSE/OPEN on
2
Island operation
Island
operation
Mains voltage and frequency OK MainsReturnDel timer
started
Mains return
Mains failed Island operation Mains
return
MainsReturnDel elapsed GCB CLOSE/OPEN off,
then after
Fwd Return Del
MCB CLOSE/OPEN on
and then engine stop
sequence performed
3
Mains operation
1
Mains failed means mains over/under -voltage, over/under -frequency, voltage assymetry (preset
delay must elapse)
2
If during start-up sequence mains returns, then MCB is reclosed with delay MCB Close Del (if
opened, depending on
MCB Opens On setpoint) and start-up sequence is interrupted.
3
If mains fails during stop procedure (cooling) again, stop sequence is interrupted, MCB opened and
GCB reclosedclosed with delay
Fwd Return Del.
See also chapter
Circuit breakers timing.
TEST mode
The setpoint
ReturnFromTEST influences the behavior of TEST mode.
Caution: The gen-set starts automatically and is always running in TEST mode!
The setpoint ReturnFromTEST = MANUAL
While TEST mode is selected, gen-set starts and is running unloaded.