Appendix D Event Messages
D02706R02.30
L-PRO 4000 User Manual
Appendix D-3
Self Check Fail
due to DC
Offset Detector
The DSP has an algorithm that detects continuous dc levels on the analog in-
puts and initiates alarms and relay output contact blocking when the measured
dc level exceeds the Alarm or Block level. The Alarm level is intended to pro-
252759 Sync Check: Armed
50BF-1 Main ABC:Trip
The possible phase information will be:
• A
• B
• C
• AB
• BC
• CA
• ABC
50BF-2 Main ABC:Trip
50BF-1 Aux ABC:Trip
50BF-2 Aux ABC:Trip
81-1: Trip
81-2: Trip
81-3: Trip
81-4: Trip
79 Initiated: High
Recloser is initiated.
79 Lead Lockout: High
Recloser shot count has expired and reclosing attempts are
blocked.
79 Follow Lockout: High
Follow breaker has failed to reclose.
79 Main Reclose: shot n
Recloser Main circuit breaker close attempt where n equals the
shot count.
79 Follow Reclose: shot n
Recloser Aux. circuit breaker close attempt where n equals the
shot count.
79 Block: High
Recloser is blocked by an external signal.
Self Check: DC Ch.n: Alarm
Continuous dc level on Ch. n, where n = 1 to 18.
Self Check: DC Alarm Reset
Continuous dc level, condition has reset.
Self Check: DC Ch.n: O/P Block
Continuous dc level on Ch. n, where n = 1 to 18. Relay is blocked.
New Settings loaded, Active group n.
Where n = 1-8
New Setting Loaded
Manual Settings Load request, activate SGn
Manual or user-initiated settings change.
Manual Settings Load request completed
Completion of user-initiated settings change.
Changed Active Group from x to y
Logic n
This happens when relay changes setting group. Automatic group
logic initiated setting group change
User changed Active Group from x to y
This happens when the relay changes setting group. User initiated
setting group change
Unit Recalibrated
Unit restarted
User logged In
Note: For either of the above cases the DSP controller functions con-
tinue with normal auxiliary relay outputs provided that DSP failure or
Self Check Fail: Block has not occurred.
L-PRO Event Messages
Summary of Contents for L-PRO 4000
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