IGS-NT Combi, SW Version 3.0,   ©ComAp – May 2013                    
IGS-NT-Combi-3.0 Reference Guide.PDF 
 
Setpoint: Cooling time 
This setpoint is used to adjust the length of the Cooling phase, which takes place 
after the gen-set has been unloaded (GCB opened) and before it is stopped. The 
cooling phase can be performed either at nominal or at idle speed. See the 
setpoint Cooling speed. 
If the cooling phase length optimalization is enabled, the actual length depend on 
the actual genset load in the moment the stop sequence was started. See the 
setpoint Cooldown optim. 
 
Setpoint: CoolDnAfterBOC 
The setpoint selects the controller behavior in cooling phase after a BOC alarm: 
 
The controller behaves as usually, e.g. the cooling phase lasts 
for period adjusted by the setpoint Cooling time and then the 
gen-set is stopped.  
The cooling phase is not finished automatically when the 
Cooling time elapses. The gen-set remains in cooling until 
another event changes the it's state, e.g. it is manually 
stopped. If the gen-set is in AUT mode and the alarm is not 
active and has been reset the gen-set returns to loaded state 
automatically.  
 
Setpoint: Cooldown optim 
This setpoint enables optimalization of the cooling phase length based on the 
previous gen-set load. 
 
The length of the cooling phase is given by the setpoint 
Cooling time regardless of the previous gen-set load.  
The length of the cooling phase is linearly reduced according 
to the gen-set load in the moment the stop sequence started