Monitoring Possible Causes Malfunction
Response
Indication (No.) Output
Broken wire external (current trans-
former secondary circuit)
All respective protec-
tion functions are
blocked
brk. wire IL1M1
brk. wire IL2M1
brk. wire IL3M1
...
brk. wire IL1M5
brk. wire IL3M5
brk. wire IL3M5
as allocated
Circuit Breaker Circuit breaker tripping Alarm with identifica-
tion of the measuring
location/side
Incons.CBaux M1
...
Incons.CBaux M5
or
Incons.CBaux S1
...
Incons.CBaux S5
as allocated
EN100 Module external wiring/
EN100 Module
Alarm
Fail Ch1
Fail Ch2
or
Failure Modul
as allocated
CFC Internal Alarm
Distur.CFC
as allocated
Fuse-Failure-Monitor
(asymmetrical and
symmetrical)
External (voltage trans-
former secondary circuit)
Blocked alarm of
dependent under-
voltage function.
„Fuse–Failure“ as allocated
Trip circuit supervision External (trip circuit or
control voltage)
Alarm
FAIL: Trip cir.
as allocated
1)
After three unsuccessful attempts, the device is put out of operation
2)
DOK = “Device Okay” = relay (“Life-contact”)
Parameterisation Error
Changes made in settings during allocation of binary inputs and outputs or during assignment of measuring
inputs, may lead to inconsistencies endangering proper operation of protective and supplementary functions.
The device 7UT6x controls the settings for consistency and announces any inconsistent settings. For instance,
earth fault differential protection cannot be applied if there is no measuring input for the starpoint current
between starpoint of the protected object and the earthing electrode.
These inconsistencies are output with the operational and spontaneous annunciations.
2.19.5
Functions
2.19 Monitoring Functions
270 SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
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