IS-NT-Async-SPI, SW Version 1.2, ©ComAp – February 2011
IS-NT-Async-SPI-1.2.PDF
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Range: 5 – 60 s
Force value possibility: Yes
Crank attempts [ ] (FV)
Max number of crank attempts.
Step: 1
Range: 1 – 10
Force value possibility: Yes
Hint:
A pickup fail shutdown is activated if digital output starter is closed and the controller measures zero RPM
(from the pickup) and non-zero frequency.
Idle time [ s ] (FV)
Idle time delay starts when RPM exceeds Start RPM. A start fail is detected if the RPM drops below 2 RPM
during Idle time.
Binary output IDLE/NOMINAL is opened before and during engine start (during Idle time) and after engine
start is activated - in Cooling state, only if Engine params: Cooling Speed = NOMINAL.
Step: 1 s
Range: 1 – 3600 s
Force value possibility: Yes
Hint:
The Under speed protection becomes active 5s after reaching Starting RPM or other engine running
condition regardless of the setting of Idle time (transition Idle -> Nominal RPM).
Min stab time [ s ] (FV)
This is the minimum time the controller will wait, after switching the engine to nominal RPM, to close the
GCB (the delay ensures that the GCB is closed with correct generator frequency/voltage).
Step: 1s
Range: 1 – Max stab time s
Force value possibility: Yes
Warming load [ % ] (FV)
The requested load during warm-up period after GCB is closed. In parallel to mains operation only.
Step: 1 % of Nominal power
Range: 0 – 100 % of Nominal power
Force value possibility: Yes
Hint
Warming temp Analog input has to be configured. Otherwise the warm-up procedure does not work.
Warming temp [ °C ] (FV)
The requested engine water temperature to finish the warming period. If this limit reached, the actual
Warming time is shorter than Max warm time setpoint.
Step: 1 °C
Range: ± 32000 °C
Force value possibility: Yes
Max warm time [ s ] (FV)
If the required Warming temp is not achieved within this time, the warming period is completed anyway.
Step: 1 s
Range: 0 – 3600 s
Force value possibility: Yes
Cooling speed [ NOMINAL / IDLE ] (FV)
Determines function of Idle/Nominal binary output during cooling.
NOMINAL Gen-set cools down on nominal speed, generator voltage and frequency protections are active.
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