Event Codes - ABB REJ 527 Technical Reference Manual

REJ 527
4.1.9.2.
38
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. (An exception to this are
events E50 and E51 that have to be reset with C command.) 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 15: Event masks
Event mask Code
V155 E1...E8
V156 E9...E12
V157 E13...E20
V158 E31
Table 16: Event codes E1...E8
Code Event
E1 Starting of stage U
E2 Starting of stage U
E3 Tripping of stage U
E4 Tripping of stage U
E5 Starting of stage I
E6 Starting of stage I
E7 Tripping of stage I
E8 Tripping of stage I
Default value of event mask V155
Setting range
0...255
0...15
0...255
0 or 1
>
0b
> reset
0b
>
0b
> reset
0b
> or U >
0 0
> or U > reset
0 0
> or U >
0 0
> or U > reset
0 0
ABB Substation Automation
Products and Systems
Default setting
85
5
3
1
Weighting
Default value
factor
1 1
2 0
4 1
8 0
16 1
32 0
64 1
128 0
85
1MRS750616-MUM