Monitoring Possible Causes Malfunction
Response
Message (No.) Output
Secondary voltage transformer
circuit monitoring
External (voltage
transformer circuit
interruption)
Message
VT brk. wire
(253)
As allocated
Calibration data fault Internal (hardware) Message
Alarm NO calibr
(193)
As allocated
1)
After three unsuccessful restart attempts, the device is shut down.
2)
DOK = "Device Okay" = Ready for service relay drops off, protection and control functions are blocked.
Group Alarms
Certain messages of the monitoring functions are already combined to group alarms. A listing of the group
alarms and their composition is given in the Appendix F.4 Group Alarms. In this case, it must be noted that
message 160
Alarm Sum Event
is only issued when the measured value monitoring functions (8101
MEASURE. SUPERV) are activated.
Functions
2.12 Monitoring Functions
SIPROTEC 4, 7SJ62/64, Manual 199
C53000-G1140-C207-8, Edition 08.2016
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