IS-NT-Async-SPI, SW Version 1.2,   ©ComAp – February 2011                                
IS-NT-Async-SPI-1.2.PDF 
 
39
 
Common OfL  
The output closes if any “Off load”-type alarm appears. The output opens, if no “Off load”-type alarm is 
active. No FAULT RESET needed. 
Common BOC  
The output closes if any “Breaker Open & Cool-down”-type alarm appears. The output opens, if no “Breaker 
Open & Cool-down”-type alarm is active and FAULT RESET has been pressed. 
Common Stp  
The output closes if any “Slow stop”-type alarm appears. The output opens, if no “Slow stop”-type alarm is 
active and FAULT RESET has been pressed. 
Common Sd  
The output closes if any “Shutdown”-type alarm appears. The output opens, if no “Shutdown”-type alarm is 
active and FAULT RESET has been pressed. 
CommonActLev 2  
The output is a logical OR of Common BOC, Common Stp and Common Sd outputs. 
CommonAlLev 2  
The output is active if at least one of the 2
nd
 level alarms (BOC, Stp, Sd) is active or not yet confirmed. 
Common Fls  
The output closes if any “Fail sensor”-type alarm appears. The output opens, if no “Fail sensor”-type alarm is 
active and FAULT RESET has been pressed. 
T cyl differ 
Output closes when engine cylinder temperature difference warning is active. 
Vgen <> 
The output closes if the generator over/under voltage alarm activates. 
Vmains <>  
The output closes if the mains over/under voltage alarm activates. 
 
VectorShiftTrp  
The output closes if the Vector shift protection gets active and the controller actually trips the selected 
breaker. The output stays closed for 3s, then opens again. 
VectorShiftAct  
The output closes if the Vector shift protection gets active. It stays closed for 3s, then opens again. This 
output is activated regardless of the activity of the input Sd Override.