IGS-NT Combi, SW Version 3.0,   ©ComAp – May 2013                    
IGS-NT-Combi-3.0 Reference Guide.PDF 
 
 
GCB UV COIL OUTPUT TIMING 
 
There are also other outputs availabe for GCB control:  
  GCB close/open 
  GCB ON coil 
  GCB OFF coil 
 
 
Binary output: MCB Close/Open 
This output is intended for control of the MCB if a contactor is used as MCB. The 
output provides continuous signal while the MCB has to be closed. See timing 
diagram of all available breaker control outputs in the description of the GCB 
close/open output. 
NOTE:  
Use invert function when configuring the output in GenConfig to obtain inverted 
function of the output, i.e. output is closed while the MCB has to be open.  
 
There are also other outputs availabe for MCB control:  
  MCB ON coil 
  MCB OFF coil 
  MCB UV coil 
 
 
Binary output: MCB ON Coil 
This output is intended for closing of the MCB using ON coil if a circuit breaker is 
used as MCB. The output provides 2 sec pulse when the MCB has to close. If 
synchronizing is disabled with the particular breaker, the pulse length is extended 
to 5sec. See timing diagram of all available breaker control outputs in the