Siemens SIPROTEC 4 7SJ61 User Manual

Table 2-6 Summary of malfunction responses by the protection relay
Monitoring Possible Causes Malfunction
Response
Message (No.) Output
AC/DC supply voltage loss External
(Nominal voltage)
internal (power
supply)
Device shutdown All LEDs dark
DOK
2)
drops
out
Internal supply voltages Internal (power
supply)
Device shutdown LED "ERROR"
DOK
2)
drops
out
Buffer battery Internal (buffer
battery)
Message
Fail Battery (177)
Hardware watchdog Internal
(processor failure)
Device shutdown
1)
LED "ERROR"
DOK
2)
drops
out
Software watchdog Internal
(processor failure)
Restart attempt
1)
LED "ERROR"
DOK
2)
drops
out
Working memory ROM Internal (hardware) Relay aborts restart,
device shutdown
LED blinkt
DOK
2)
drops
out
Program memory RAM Internal (hardware) During boot sequence LED "ERROR"
DOK
2)
drops
out
Detection during oper-
ation:
Restart attempt
1)
LED "ERROR"
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
Module error Internal (hardware) Device shutdown
Error Board 1 bis
Error Board 7 (178
bis189),
LED "ERROR"
DOK
2)
drops
out
Internal auxiliary voltage 5 V Internal (hardware) Device shutdown
Error 5V (144),
LED "ERROR"
DOK
2)
drops
out
0V monitoring Internal (hardware) Device shutdown
Error 0V (145),
LED "ERROR"
DOK
2)
drops
out
Internal auxiliary voltage –5 V Internal (hardware) Device shutdown
Error -5V (146),
LED "ERROR"
DOK
2)
drops
out
Internal supply voltages Internal (hardware) Device shutdown
Error PwrSupply
(147),
LED "ERROR"
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
Functions
2.8 Monitoring Functions
130 SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016

Siemens SIPROTEC 4 7SJ61 Specifications

General

Brand	Siemens
Model	SIPROTEC 4 7SJ61
Category	Relays
Language	English