87
UMG 509
Alarm status for I5, I6
Using bit-by-bit coding inside the alarm register (addr.
19224 for I5, 19225 for I6), it is possible to read out
different alarm statuses:
Warning: The residual current has exceeded
the set warning limit value
Overcurrent: The measurement range has been
exceeded
Alarm: Alarm bit is set for: warning,
overcurrent or connection error
to the transformer.
The alarm bit must be reset
or acknowledged manually.
Failure
monitoring:
There is a connection error
to the transformer
Example:
Interruption of the connection to the residual current
transformer. The alarm bit is also set and must be
acknowledged!
Unused
Failure monitoring
Alarm
Overcurrent
Warning
Bit:
0
15
0 0 0 0 0 0 0
14 13 12 11 10 9 8
0
7
0 0 0 0 0 0 0
6 5 4 3 2 1 0
Unused
Failure monitoring
Alarm
Overcurrent
Warning
Bit:
0
15
0 0 0 0 0 0 0
14 13 12 11 10 9 8
0
7
0 0 0 1 1 0 0
6 5 4 3 2 1 0