Siemens siprotec 7SA6 User Manual page 139

CLOSE
Command
C+
C–
Matrix Configuration:
Figure 5-6 Double command with single contacts
CLOSE
Command
C+
C–
CC
Matrix Configuration:
Figure 5-7 Double command with single contacts plus common contact
CLOSE
Command
C+
C–
CCC
Matrix Configuration:
Figure 5-8 Double command with single output common to a bus
7SA6 Manual
C53000-G1176-C133-1
TRIP
Command
1 2
X X
TRIP
Command
2 3
1
X X X
In contrast to other output relays the relay common to a bus is allocated to different
switching devices (see Figure 5-8). For security reasons the switching devices cannot
be switched at the same time.
The relay common to a bus automatically adopts the properties of the controlling relay,
i. e. it is not configured individually. The output is single-pole.
TRIP
Command
1 2 n
X X X
C+
CLOSE
t
C+
t
C+
Switching
CLOSE
1
Device
t
Configuration
C–
Switching
TRIP
Device
C–
Switching
CLOSE TRIP
Device
CC
C–
TRIP Switching Device
2...n
CCC
L+
L–
L+
L–
L+
L–
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