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Table 101. Default Function Block Logic
Function Purpose
Used for instantaneous phase overcurrent protection.
Used for instantaneous neutral overcurrent protection.
Used for instantaneous negative-sequence overcurrent protection.
Used for timed phase overcurrent protection.
Used for timed neutral overcurrent protection.
Used for timed negative-sequence overcurrent protection.
FAULT TRIGGER
Table 102. Default Output Logic
Output Purpose Description Label
Energized
OUTA Alarm Output Contact.
Alarm contact closes/opens (refer
to style number) automatically
when relay trouble alarm occurs.
Output
Alarm
On Off
OUT1 Breaker Trip Output.
Contact closes when protective
trip expression is TRUE.
On Off
OUT2
Instantaneous Phase
OC Auxiliary Contact.
instantaneous overcurrent (50-1)
Output
2
On Off
OUT3
Timed Phase OC
Auxiliary Contact.
Contact closes when inverse
overcurrent (51-1) trip occurs.
On Off
OUT4
and Negative-
instantaneous overcurrent (50-2
Output
4
On Off
OUT5
Negative-Sequence
Contact closes when inverse
overcurrent (51-2 or 51-3) trip
Output
5
On Off
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