Siemens SIPROTEC 7SJ62 Manual page 217

Table 2-14 Summary of malfunction responses by the protection relay
Monitoring
AC/DC supply voltage loss
Internal supply voltages
Buffer battery
Hardware watchdog
Software watchdog
Working memory ROM
Program memory RAM
Settings memory
Sampling frequency
Measured value acquisition
Error in the I/O-board
Module error
Internal auxiliary voltage 5 V
0V monitoring
Internal auxiliary voltage –5 V Internal (hardware)
Offset monitoring
Internal supply voltages
Current sum
Current symmetry
Voltage symmetry
Voltage phase sequence
Current phase sequence
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
Possible Cause Malfunction Re-
External Device shutdown
(Nominal voltage) in-
ternal (power supply)
Internal (power Device shutdown
supply)
Internal (buffer bat- Message
tery)
Internal Device shutdown
(processor failure)
Internal Restart attempt
(processor failure)
Internal (hardware) Relay aborts restart,
device shutdown
Internal (hardware) During boot sequence LED "ERROR"
Detection during oper-
ation: Restart attempt
1)
Internal (hardware) Restart attempt
Internal (hardware) Device shutdown
External (hardware) Blocking by the protec-
tion function
Internal (hardware) Device shutdown
Internal (hardware) Device shutdown
Internal (hardware) Device shutdown
Internal (hardware) Device shutdown
Device shutdown
Internal (hardware) Device shutdown
Internal (hardware) Device shutdown
Internal Device shutdown
(measured value ac-
quisition)
External (power Message
system or current
transformer)
External (power Message
system or voltage
transformer)
External (power Message
system or connection)
External (power Message
system or connection)
Message (No.)
sponse
All LEDs dark
LED "ERROR"
„Fail Battery" (177)
1)
LED "ERROR"
1)
LED "ERROR"
LED blinks
LED "ERROR"
1)
LED "ERROR"
LED "ERROR"
„Error A/D-conv." (181),
LED "ERROR"
„I/O-Board error" (178),
LED "ERROR"
„Error Board 1" to „Error
Board 7" (178 to 189),
LED "ERROR"
„Error 5V" (144),
LED "ERROR"
„Error 0V" (145),
LED "ERROR"
„Error -5V" (146),
LED "ERROR"
„Error Offset" (191)
„Error PwrSupply"
(147),
LED "ERROR"
„Failure Σ I" (162)
„Fail I balance" (163)
„Fail V balance" (167)
„Fail Ph. Seq. V" 176)
„Fail Ph. Seq. I" (175)
Functions
2.11 Monitoring Functions
Output
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
2)
DOK drops out
As allocated
As allocated
As allocated
As allocated
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