Control Techniques Unidrive Regen Installation Manual page 19

5.9.3 Multiple size 5 Regen
When a Regen system consists of multiple size 5 Regen and motoring drives, AC supply fusing and -DC bus fusing should be fitted as shown below:
Figure 5-4 Fusing: Multiple size 5 Regen system
AC
Supply
Fusing
R
3 Phase
Y
Supply
B
Unidrive Regen Installation Guide
Issue Number: 2
Main
Contactor
Additional
Circuitry
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Regen
Inductor
Regen
Drive
U
+DC
V
W
-DC
Regen
AC
Fusing
Regen
Drive
U
+DC
V
-DC
W
Regen
Inductor
Output
Sharing
Motoring
Drive
Choke
U
+DC
V
-DC
W
DC Bus
Fusing
Motoring
Drive
U
+DC
V
-DC
W
Output
Sharing
Choke
M
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