Siemens SIPROTEC 4 7SJ61 Manual page 130

Functions
2.8 Monitoring Functions
Table 2-6
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 supply voltages
Current sum
Current symmetry
130
Summary of malfunction responses by the protection relay
Possible Causes
External
(Nominal voltage)
internal (power
supply)
Internal (power
supply)
Internal (buffer
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
(measured value
acquisition)
External (power
system or current
transformer)
Malfunction Message (No.)
Response
Device shutdown All LEDs dark
Device shutdown LED "ERROR"
Message Fail Battery (177)
LED "ERROR"
Device shutdown 1)
LED "ERROR"
Restart attempt 1)
Relay aborts restart, LED blinkt
device shutdown
During boot sequence LED "ERROR"
Detection during oper- LED "ERROR"
ation:
Restart attempt 1)
LED "ERROR"
Restart attempt 1)
Device shutdown LED "ERROR"
Blocking by the protec-
Error A/D-conv.
tion function (181),
LED "ERROR"
Device shutdown
I/O-Board error
(178),
LED "ERROR"
Device shutdown Error Board 1 bis
Error Board 7 (178
bis189),
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 PwrSupply
(147),
LED "ERROR"
Device shutdown
Failure Σ I (162)
Message
Fail I balance
(163)
Output
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
DOK 2)
out
As allocated
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016
drops
drops
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drops
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drops
drops
drops
drops
drops
drops
drops
drops
drops
drops