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Start the DC buses interconnection with the last slave and proceed similarly
with each cubicle until reaching the Master.
An example of DC bus interconnection is given below (PQFA-B+D+C) in
Figure 7.2.
Control
+
Module 2
+
-
-
Module 1
-
+
7
.
3
.
1
.
2
.
C
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t
r
o
l
c
7
.
3
.
1
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2
.
C
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r
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l
c
Each slave cubicle comes from the factory with a bunch of 7 cables
connected to terminal X13.
Those cables fed a common Wago connector that has to be connected to
terminal X13 of the next cubicle, starting connection with the bunch of the last
slave (Picture 7.2)
+
+
Module 4
-
-
Module 3
-
+
Figure 7.2. DC bus interconnection
o
n
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e
c
t
i
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Asea Brown Boveri Jumet S.A.
PQFA Instructions Manual
Be very careful about the polarity
when connecting the DC bus.
-
Module 5
+
Internal
connection
External
connection to
perform
46
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