IS-NT-Async-SPI, SW Version 1.2, ©ComAp – February 2011
IS-NT-Async-SPI-1.2.PDF
12
Engine starting procedure if Engine params: Fuel solenoid = GAS ENGINE
Unsuccessful start – no Engine params: Starting RPM reached
MaxCrank time
BO: Fuel solenoid
RPM
BO: Starter
Start fail activated only if this
has been the last start attempt in
a series.
BO: Start fail
Starting RPM level not reached
and no other signs of running
engine is present.
Unsuccessful start – RPM disappeared before/after Underspeed protection got active:
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
level.Starting RPM
Underspeed protection is not yet
Active. Underspeed is detected
only if RPM <= 2 and other
signs of moving engine
present = „still engine“.
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