Siemens SIPROTEC 7SJ62 - Page 103

Configuration
5-97SJ62 Manual
C53000-G1140-C121-1
Figure 5-6 Double Command with Single Contacts plus Common Contact
Figure 5-7 Double Command on Common Bus with Single Contacts and Common Contact
Figure 5-7 shows the common output relay with several switching devices, in contrast
to all other output relays. Simultaneous control of multiple switching devices is
blocked, for safety reasons.
The common output relay automatically acquires the characteristics of the controlling
relay upon issuing of a command to a switching device and, therefore, is not individu-
ally configured. The final command output is via a single contact.
CLOSE
Command
C+
C–
TRIP
Command
CC
t
C+
C–
V+
V–
CC
Relay Configuration:
C+
X
BO 1
C–
X
2
3
X
CC
CLOSE TRIP
Switching Device
COIL COIL
CLOSING
Command
C+
C–
TRIPPING
Command
CCC
t
Switching
Device 2...n
C+ C–
V+
V–
CCC
Relay Configuration:
C+
X
BO 1
C–
X
2
X
CCC
n
CLOSE TRIP
Switching Device
COIL COIL
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