Event Codes - ABB REJ 523 Technical Reference Manual

ABB Substation Automation
Products and Systems
4.1.9.2
1MRS750940-MUM
Technical Reference Manual

Event codes

Special codes have been determined to represent certain events, such as start and
operation of protection stages and different states of output signals. The event codes
can be transferred to higher system levels via the rear connector.
Events E1...E51 are stored in the event register of the relay. The maximum capacity
of the register is 60 events. Under normal conditions the register is empty.
The content of the register can be read with L command 5 events at a time. Using the
L command erases the read events from the register. Should a fault occur, for example
in data communication, these events can be re-read with B command. If needed, the B
command can also be repeated.
Events to be included in event reporting are marked with a multiplier 1. The event
mask is formed by the sum of the weighting factors of all those events that are to be
included in event reporting.
Table 4.1.9.2-1 Event masks
Event mask
V155
V156
V157
Table 4.1.9.2-2 Event codes E1...E8
Code Event
E1 Starting of stage I>
E2 Starting of stage I> reset
E3 Tripping of stage I>
E4 Tripping of stage I> reset
E5 Starting of stage I>>
E6 Starting of stage I>> reset
E7 Tripping of stage I>>
E8 Tripping of stage I>> reset
Default value of event mask V155
Code Setting range
E1...E8
E9...E16
E31
Weighting factor
Default setting
0...255
0...255
0 or 1
Default value
1
2
4
8
16
32
64
128
REJ 523
85
3
1
1
0
1
0
1
0
1
0
85
37