ComAp intelilite nt amf20 User Manual

InteliLite
NT
– AMF20/25, SW version 2.2, ©ComAp – September 2014 102
IL-NT-AMF-2.2-Reference Guide.pdf
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.
To load the gen-set
a) Power cut comes or
b) MCB ON/OFF is pressed
When power cut: MCB is opened, after Transfer Del elapses, GCB is closed.
When the mains recovers gen-set stays supplying island load. To transfer the load back to the healthy
mains, press MCB ON/OFF button while controller is in AUT Mode. If genset will fail (shutdown or
other reason) and mains is healthy controller will transfer the load automatically back to mains.
Hint:
The controller does not respond to GCB ON/OFF , STOP, START
The load is automatically transferred back to the mains when any gen-set shut down protection
activates.
Test on load
When binary input Rem TEST OnLd is closed, the controller automatically transfers load from the
mains to the gen-set. Setpoint AMF Settings: ReturnFromTEST must be set to MANUAL, otherwise
controller will not transfer the load to gen-set. If the setpoint ReturnFromTEST is set to AUTO,
controller behaves like in common TEST mode (e.g. gen-set remains running but will not automatically
transfer the load, it will wait for mains fail).
The setpoint ReturnFromTEST = AUTO
While TEST mode is selected, gen-set is running unloaded.
When power cut comes the controller opens MCB.
After Return break elapses, GCB is closed.
When the mains recovers:
a) After MainsReturn Del the controller opens the GCB
b) After Transfer Del delay MCB is closed.
c) The engine stays running
To stop the gen-set select other mode than TEST
Hint:
The controller does not respond to GCB ON/OFF , MCB ON/OFF , STOP, START
Circuit breakers timing
Relation between Mains fail and MCB and start of gen-set
MCB Opens On = MAINSFAIL:
Mains fail is detected as Mains <V, Mains >V, Mains V Unbal, Mains <Freq, Mains >Freq. After
detection MCB is opened.
Hint:
When MCB feedback drop-out and measured mains electrical limits (voltage, frequency) are still in
limits, the controller switches MCB ON again.

ComAp intelilite nt amf20 Specifications

General

Brand	ComAp
Model	intelilite nt amf20
Category	Controller
Language	English