ComAp MainsPro - Alarm Messages

MainsPro, SW version 1.4, ©ComAp – January 2013
MainsPro Installation and Operation Guide
1-19
Alarm messages
One of these indications appears on the homepage screen in case of the unit trip. It indicates the first
protective stage, which issued the trip event:
f>
Overfrequency, 1st stage
f>>
Overfrequency, 2nd stage
f<
Underfrequency, 1st stage
f<<
Underfrequency, 2nd stage
U>
Overvoltage, 1st stage
U>>
Overvoltage, 2nd stage
U<
Undervoltage, 1st stage
U<<
Undervoltage, 2nd stage
Vs
Vector shift
RCF
ROCOF
Vunb
Voltage (amplitude) unbalance
Vneg
Negative sequence overvoltage
Vpos
Positive sequence undervoltage
Vavg
10 minutes floating average overvoltage
Rot
Wrong phase rotation
Pol
Wrong polarity of one phase
Ext
External trip
STr
Start Trip