Siemens SIPROTEC 4 7SJ61 Manual page 131

Monitoring
Current phase sequence
Trip circuit monitoring
Calibration data fault
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
message 160 Alarm Sum Event is only issued when the measured value monitoring functions (8101
MEASURE. SUPERV) are activated.
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016
Possible Causes Malfunction
Response
External (power Message
system or connec-
tion)
External (trip circuit Message
or control voltage)
Internal (hardware) Message
Message (No.)
Fail Ph. Seq. I
(175)
74TC Trip cir.
(6865)
Alarm NO calibr
(193)
F.4 Group Alarms. In this case, it must be noted that
Functions
2.8 Monitoring Functions
Output
As allocated
As allocated
As allocated
131