ABB REU 523 - Page 43

1MRS 750942-MUM
Combined Overvoltage and Undervoltage Relay
Technical Reference Manual
REU 523
43
1)
The disturbance recorder requires this parameter to be set. If this parameter has been given the
default value 0, dashes will be shown on the LCD instead of the primary values and the recorded data
will be redundant. This value is copied to parameters M81 and M82.
2)
M1 can be used for broadcast triggering by using the unit address “900”.
3)
Parameters can be written when the recorder has not been triggered.
*)
Note that the value of SGB1/3 has to be 0 (indications, output contacts and memorized values will not
be reset by the binary input signal).
Triggering state, clearing and
restart
V246 R, W R:
0 = recorder not triggered
1 = recorder triggered and
recording stored in the memory
W:
0 = clear recorder memory
2 = download restart; sets the
first information and time stamp
for triggering ready to be read
4 = manual triggering
Table 4.1.10.4-5 Disturbance recorder internal triggering
Event
Weighting
factor
Default value of
triggering mask,
V241
Default value of
triggering edge,
V242
Start of stage U> 1 0 0
Trip of stage U> 2 1 0
Start of stage U>> 4 0 0
Start of stage U< 8 0 0
Trip of stage U< 16 1 0
Start of stage U<< 32 0 0
Trip of stage U<< 64 1 0
Not in use - 0 0
Checksum 82 0
Table 4.1.10.4-6 Disturbance recorder external triggering
Event
Weighting
factor
Default value of
triggering mask,
V243
Default value of
triggering edge,
V244
External BI
*)
11 0
Not in use - 0 0
Not in use - 0 0
Not in use - 0 0
Not in use - 0 0
Not in use - 0 0
Not in use - 0 0
Not in use - 0 0
Checksum 1 0
Table 4.1.10.4-4 Parameters for the disturbance recorder
Description Parameter R, W Value/Note