InteliLite
NT
– AMF20/25, SW version 2.2, ©ComAp – September 2014 99
IL-NT-AMF-2.2-Reference Guide.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
Ready
Start request
PRESTART on
Prestart Time
counter
started
Prestart
RPM > 2 or Oil pressure > Starting OilP
detected or Gen voltage > 10V
Stop (Stop fail)
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
