ComAp IS-NTC-BB

IGS-NT Combi, SW Version 3.0, ©ComAp – May 2013
IGS-NT-Combi-3.0 Reference Guide.PDF
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RPM dropped under Starting RPM
level and Underspeed enabled
-> protection activated.
Underspeed unblocking
BO: Fuel solenoid
RPM
BO: Starter
Start fail activated because of
RPM loss.
BO: Start fail
Starting RPM level.
Underspeed protection is not yet
Active. Underspeed is detected
only if RPM <= 2 and other
signs of moving engine
present = „still engine“.
Underspeed protection unblocking if Idle time < 5s:
= 5s
BO: Idle/Nominal
RPM
BO: Starter
Transition Idle - > Nominal RPM.
Idle time <5s
Starter switched off after
reaching Starting RPM or other
engine „running“ condition.
Underspeed protection
unblocked
Underspeed protection unblocking if Idle time > 5s:
Idle time > 5s
= 5s
BO: Idle/Nominal
RPM
BO: Starter
Transition Idle - > Nominal RPM.
Starter switched off after
reaching Starting RPM or other
„running“ condition.
Underspeed protection
unblocked.
Transition Idle -> Nominal RPM, protections unblocking: