MainsPro, SW version 1.4, ©ComAp – January 2013
MainsPro Reference Guide
In case of subsequent trip in the moment of the output deactivation, the countdown of the Imp Len
delay is not interrupted and the output stays deactivated for the complete Imp Len period. If in that
period the TRIP state is terminated again, the deactivation period is prolonged to Imp Len from the
latest Fault Reset. If during TRIP state the unit is disabled by the input Disable, the output TrpEndImp
is deactivated, same as in case of a successful Fault reset.
The output can generally be used for closing the circuit breaker by the ON coil.
!TrpEndImp
Inverse impulse at the end of the TRIP state. The output is normally deactivated during operation of
the unit. The output activates at the end of the TRIP state (i.e. after successful Fault Reset is
performed) for period given by the parameter Imp Len.
In case of subsequent trip in the moment of the output activation, the countdown of the Imp Len delay
is not interrupted and the output stays activated for the complete Imp Len period. If in that period the
TRIP state is terminated again, the activation period is prolonged to Imp Len from the latest Fault
Reset. If during TRIP state the unit is disabled by the input Disable, the output TrpEndImp is activated,
same as in case of a successful Fault reset.
The output can generally be used for closing the circuit breaker by the ON coil.
InternFail
Immediate signaling relay – internal failures; closes immediately in case of internal software failure,
including watchdog activation. Relay opens in case that all observed failures are not active, but no
sooner then after Basic: Imp Len from its activation. If the relay is closed during trip activation, it opens
no sooner than Basic: Imp Len time is up. Fault reset, performed either by pressing the Fault reset
button or through binary input, has no influence on this output.
!InternFail
Inverse immediate signaling relay – internal failures; opens immediately in case of internal software
failure, including watchdog activation. Relay closes in case that all observed failures are not active, but
no sooner then after Basic: Imp Len from its activation. If the relay is open during trip activation, it
closes no sooner than Basic: Imp Len time is up. Fault reset, performed either by pressing the Fault
reset button or through binary input, has no influence on this output.
BakTrpPer
Backup trip permanent relay; closes if any of the CommTrpPer or CommTrpImp is activated and CB
Feedback doesn't deactivate within Bak Trp Del. Resets by successful fault reset or if the CB
Feedback deactivates before the countdown stops.
If the CB Feedback input or Bak Trp output are not configured on any physical input or output, this
function is blocked.
!BakTrpPer
Inverse backup trip permanent relay; opens if any of the CommTrpPer or CommTrpImp is activated
and CB Feedback doesn't deactivate within Bak Trp Del. Resets by successful fault reset or if the CB
Feedback deactivates before the countdown stops.
If the CB Feedback input or Bak Trp output are not configured on any physical input or output, this
function is blocked.
BakTrpImp
Backup trip impulse relay; closes immediately if any of the CommTrpPer or CommTrpImp is activated
and CB Feedback doesn't deactivate within Bak Trp Del. The length of the impulse can be adjusted in
Basic: Imp Len. Opening of the relay does not mean end of trip state. The trip is terminated in fault
free state after a successful fault reset. During trip status, the relay does not react on any new failure
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