Siemens SIPROTEC 7SJ61 Manual page 145

Table 2-6
Monitoring
Auxiliary supply voltage loss
Internal supply voltages
Back-up battery
Hardware watchdog
Software watchdog
Working memory
Program memory
Settings
Scanning frequency
Measured value acquisition
Error in the I/O-board
Module error
Internal auxiliary voltage 5 V
0 V-Monitoring
Internal auxiliary voltage -5 V
Offset Monitoring
Internal supply voltages
Current sum
Current symmetry
Current rotation
Trip circuit monitoring
Calibration data fault
1)
After three unsuccessful restarts, the device is taken out of service.
2)
DOK = "Device Okay" = Ready for service relay drops off, protection and control functions are blocked.
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
Summary of malfunction responses by the protection relay
Possible Causes
External (aux. volt-
age), internal (con-
verter)
Internal (power
supply)
Internal (battery)
Internal (processor
failure)
Internal (processor
failure)
Internal (hardware)
Internal (hardware)
Internal (hardware)
Internal (hardware)
External (hardware)
Internal (hardware)
Internal (hardware)
Internal (hardware)
Internal (hardware)
Internal (hardware)
Internal (Hardware)
Internal (hardware)
Internal (measured
value acquisition)
External (power
system or current
transformer)
External (power
system or connection)
External (trip circuit or
control voltage)
Internal (Hardware)
Malfunction Re-
sponse
Device shutdown All LEDs dark
Device shutdown LED "ERROR"
Message „Fail Battery" (177)
Device shutdown LED "ERROR"
1)
Restart attempt LED "ERROR"
Relay aborts restart, LED flashes
device shutdown
During startup LED "ERROR"
During operation: LED "ERROR"
1)
Restart attempt
1)
Restart attempt LED "ERROR"
Device shutdown LED "ERROR"
Blocking by the protec- „Error A/D-conv." (181),
tion function LED "ERROR"
Device shutdown „I/O-Board error" (178),
LED "ERROR"
Device shutdown „Error Board 1" to „Error
Board 7" (178 to 189),
LED "ERROR"
Device shutdown „Error 5V" (144),
LED "ERROR"
Device shutdown „Error 0V" (145),
LED "ERROR"
Device shutdown „Error -5V" (146),
LED "ERROR"
Device shutdown „Error Offset" (191)
Device shutdown „Error PwrSupply"
(147),
LED "ERROR"
„Failure Σ I" (162)
Message
Message „Fail I balance" (163)
Message „Fail Ph. Seq. I" (175)
Message „74TC Trip cir." (6865)
Message „Alarm NO calibr" (193) As allocated
2.8 Monitoring Functions
Message (No.) Output
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
DOK
out
As allocated
As allocated
As allocated
As allocated
Functions
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
2)
drops
145