Monitoring Possible Causes Malfunction
Response
Message (No.) Output
Settings memory Internal (hardware)
Restart attempt
1)
LED "ERROR"
DOK
2)
drops
out
Sampling frequency Internal (hardware) Device shutdown LED "ERROR"
DOK
2)
drops
out
Measured value acquisition External (hardware) Blocking by the protec-
tion function
Error A/D-conv.
(181),
LED "ERROR"
DOK
2)
drops
out
Error in the I/O-board Internal (hardware) Device shutdown
I/O-Board error
(178),
LED "ERROR"
DOK
2)
drops
out
Offset monitoring Internal (hardware) Device shutdown
Error Offset
(191)
DOK
2)
drops
out
Current sum Internal
(measured value
acquisition)
Device shutdown
Failure Σ I
(162)
DOK
2)
drops
out
Current symmetry External (power
system or current
transformer)
Message
Fail I balance
(163)
As allocated
Voltage symmetry External (power
system or voltage
transformer)
Message
Fail V balance
(167)
As allocated
Voltage phase sequence External (power
system or connec-
tion)
Message
Fail Ph. Seq. V
176)
As allocated
Current phase sequence External (power
system or connec-
tion)
Message
Fail Ph. Seq. I
(175)
As allocated
Fuse Failure Monitor External
(voltage transformer)
Message
VT FuseFail>10s
(169)
VT FuseFail
(170)
As allocated
Trip circuit monitoring External (trip circuit
or control voltage)
Message
74TC Trip cir.
(6865)
As allocated
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
2.11 Monitoring Functions
SIPROTEC 4, 7SJ80, Manual 171
E50417-G1140-C343-A8, Edition 12.2017
To Next Page
Loading...
Need help?
General
