Siemens Siprotec 7VK61 Manual page 142

Functions
2.7 Monitoring Function
Monitoring
1 A/5 A-Setting
Calibration data
Earth current transform-
er sensitive/insensitivity
Modules
Current sum
Current Symmetry
Broken conductor
Voltage sum
Voltage Symmetry
Voltage Phase Se-
quence
Voltage failure, three-
phase „Fuse-Failure-
Monitor"
Voltage failure, single
and two-phase „Fuse-
Failure-Monitor"
Voltage failure, three-
phase
Trip Circuit Monitoring
1)
after three unsuccessful restarts, the device is taken out of service.
2)
DOK = „ Device OK" = Break contact of the readiness relay = Life-contact
142
possible causes
Jumper wrong 1/5 A
Internal (EEPROM or RAM) Indication:
I/O-BG does not comply the
order number MLFB of the
device
Module does not comply
with ordering number
Internal (measured value
acquisition)
External (power system or
current transformer)
External (power system or
current transformer)
Internal (measured value
acquisition)
External (power system or
voltage transformer)
External (power system or
connection)
External (power system or
connection)
External (voltage transform-
ers)
External (power system or
connection)
External (trip circuit or
control voltage)
Malfunction Re-
sponse
Indications: „Error1A/5Awrong"
Protection out of opera- (192) „Error A/D-
tion conv." (181)
LED „ERROR"
„Alarm adjustm."
Using default values (193)
Indications: „Error neutralCT"
Protection out of opera- (194)„Error A/D-
tion conv." (181)
LED „ERROR"
Indications: „Error Board
Protection out of opera- BG1...7" (FNo. 183
tion ... 189)
and if applicable
„Error A/D-conv.".
(181)
„Failure Σ I" (162)
Message
Message „Fail I balance" (163) As allocated
Message „Fail Conductor"
(195)
„Fail Σ U Ph-E" (165) As allocated
Message
Message „Fail U balance"
(167)
Message „Fail Ph. Seq." (171) As allocated
Message „VT FuseFail>10s"
Undervoltage protection (169)
is blocked
Message „VT FuseFail>10s"
Undervoltage protection (169)
is blocked
Message „Fail U absent" (168) As allocated
Undervoltage protection
is blocked
Message „FAIL: Trip cir."
(6865)
C53000-G1176-C159-3, Release date 05.2009
Message (F.No) Device
2)
DOK
As allocated
2)
DOK
2)
DOK
As allocated
As allocated
As allocated
As allocated
As allocated
As allocated
SIPROTEC, 7VK61, Manual
drops out
drops out
drops out