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Configuration
CLOSING
Command
C+1
C+2
C–1
C–2
Relay Configuration:
Figure 5-8
Double Command with Double Contacts (with 4 Relays)
CLOSING
Command
C+1
C+2
C–
Relay Configuration:
Figure 5-9
Double Command with Double and Single Contacts (with 3 Ralays)
5-10
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.
TRIP
Command
BO 1
2
3 4
X
X
X X
TRIP
Command
BO 1
2 3
X
X
X
Note:
It is recommended to mask Trip and Close commands from a protection function the
same binary I/O's, if they operate the same breaker. If for instance, the Close com-
mand of the Control function uses two contacts the auto reclose function should be
masked also to both contacts. See elementary diagrams in the appendix A.
C+1
C+2
t
C+1
C+2
t
V+
C–1
Switching Device
CLOSE
TRIP
COIL
COIL
C–2
V–
V+
C–
Switching Device
CLOSE
TRIP
COIL
COIL
V–
7SJ63 Manual
C53000-G1140-C120-1
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