Mains pro 1.6.1 Global Guide
64
12.3.6 !CommSigImp
Inverse immediate impulse signaling relay; opens immediately at any failure. Relay closes after Imp Len [s]
(page 53) since its opening. Any other detected fault-state during run of this timer has no effect. Fault reset has
no influence on this output.
6 back to Relay outputs
12.3.7 CommSigDel
Impulse signaling relay delayed; closes at any failure with delay given by appropriate parameter. Relay closes
immediately in case of LOM protection (Vector shift or ROCOF), External trip, incorrect phase rotation or wrong
phase polarity. Relay opens after Imp Len [s] (page 53) since its closing. Any other detected fault-state during
run of this timer causes a new activation of this relay or extends timing of Imp Len [s] (page 53) by the new
impulse length from the moment of the failure detection. Fault reset has no influence on this output.
6 back to Relay outputs
12.3.8 !CommSigDel
Inverse impulse signaling relay delayed; opens at any failure with delay given by appropriate parameter. Relay
opens immediately in case of LOM protection (Vector shift or ROCOF), External trip, incorrect phase rotation or
wrong phase polarity. Relay closes after Imp Len [s] (page 53) since its opening. Any other detected fault-
state during run of this timer causes a new activation of this relay or extends timing of Imp Len [s] (page 53) by
the new impulse length from the moment of the failure detection. Fault reset has no influence on this output.
6 back to Relay outputs
12.3.9 U Sig
Immediate signaling relay – voltage; closes immediately in case of voltage failure (over, under voltage or
average overvoltage). Relay opens in case that all parameters are back within limits, but no sooner than after
Basic: Imp Len from its activation. If the relay is closed during trip activation, it opens no sooner than Imp Len
[s] (page 53) since trip status activation. Fault reset has no influence on this output. If any voltage protection is
disabled by setpoint (limit set to 0), the output does not signal activation of this protection stage.
6 back to Relay outputs
12.3.10 !U Sig
Inverse immediate signaling relay – voltage; opens immediately in case of voltage failure (over, under voltage or
average overvoltage). Relay closes in case that all parameters are back within limits, but no sooner than after
Imp Len [s] (page 53) from its activation. If the relay is open during trip activation, it closes no sooner than
Basic: Imp Len since trip status activation. Fault reset has no influence on this output. If any voltage protection
is disabled by setpoint (limit set to 0), the output does not signal activation of this protection stage.
6 back to Relay outputs
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