1.Event Codes - ABB REF 610 Technical Reference Manual

REF 610
4.1.17.1.
118
Feeder Protection Relay
Technical Reference Manual - ANSI Version
Operations Records
Special codes have been determined to represent certain events, such as pickup and
tripping of protection elements and different states of output signals.
The events are stored in the event buffer of the relay. The maximum capacity of the
buffer is 100 events. Under normal conditions the buffer is empty.
The contents of the buffer can be read using the L command, five events at a time.
Using the L command erases the previously read events from the buffer, with the
exception of events E50 and E51 which have to be reset using the C command.
Should a fault occur and reading fails, for example in data communication, the
events can be re-read using the B command. If needed, the B command can also be
repeated.
Events to be included in the event reporting are marked with the multiplier 1. The
event mask is formed by the sum of the weighting factors of all those events which
are to be included in event reporting.
Table 4.1.17.1-1 Event masks
Event mask Code
V155 E31...E34
1V155 1E1...1E12
1V156 1E13...1E24
1V157 1E25...1E42
2V155 2E1...2E16
2V156 2E17...2E26
3V155 3E1...3E12
3V156 3E13...3E22
Channel 0
Events always included in the event reporting:
Table 4.1.17.1-2 Event codes E1...E4 and E7
Channel Event Description
0 E1 IRF
0 E2 IRF disappeared
0 E3 Warning
0 E4 Warning disappeared
0 E7 The thermal level has been changed via serial
communication
Table 4.1.17.1-3 Event codes E50...E51
Channel Event Description
0 E50 Restart of relay
0 E51 Overflow of event buffer
Setting range
0...15
0...4095
0...4095
0...262143
0...65535
0...1023
0...4095
0...1023
1MRS 755535
Default setting
1
1365
1365
4180
3
0
1023
1008