ComAp InteliLite NT AMF Series - Function Description; OFF Mode Operation; MAN Mode Operation; Start-Stop Sequence (Simplified)

InteliLite
NT
– AMF20/25, SW version 1.2, ©ComAp – March 2008 62
IL-NT-AMF-Reference Guide1.2.pdf
Function Description
OFF Mode
No start of the gen-set is possible. Outputs STARTER, GCB CLOSE/OPEN and FUEL SOLENOID are
not energized.
No reaction if buttons START,STOP,GCB ON/OFF, MCB ON/OFF are pressed.
When power-cut comes, MCB CLOSE/OPEN opens. After mains returns, MCB CLOSE/OPEN closes
with
MCB close del.
MAN Mode
START. - starts the gen-set.
GCB ON/OFF
• The controller closes GCB to dead bus.
• The controller opens GCB when closed.
• If the generator voltage is out of the limits, the controller does not to respond to the GCB
ON/OFF
MCB ON/OFF
• The controller closes MCB to dead bus.
• The controller opens MCB when closed.
STOP stops the gen-set.
Hint:
The engine can run without load unlimited time.
The controller does not automatically stop the running gen-set in MAN Mode.
The controller does not start the gen-set when power cut comes.
!! The controller provides interlock between GCB and MCB, it means it is never possible to
close both CB together
Start-stop sequence (simplified)
MODE = MAN (Engine start/stop request is given by pressing buttons START and STOP )
MODE = AUT (Engine start/stop request is evaluated form Mains failure/return)
State Condition of the transition Action Next state
Start request PRESTART on
Prestart Time counter
started
Prestart
RPM > 2 or Oil pressure detected or Gen
voltage > 10V or D+ active
Stop (Stop fail)
Ready
OFF Mode selected or Shut down alarm
active
Not Ready
Not Ready RPM < 2, Oil pressure not detected, Vgen
< 10V, D+ not Active no shutdown alarm
active, other than OFF Mode selected
Ready
Prestart
3
Prestart time elapsed
STARTER on
FUEL SOLENOID on
4
MaxCrank Time counter
started
Cranking