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Unidrive M Regen Design Guide 107
Issue Number: 4
Figure 6-2 Unidrive M size 4 power connections
* It is possible to connect the DC bus of a number of drives using a busbar kit (part number: 3470-0061), where DC bus fusing is not required.
See section 6.1.2 Ground connections on page 115.
L2L1 L3 U V W PE
AC supply connections
BR
+DC
-DC
4
L1, L2, L3
(Refer to Chapter 4
)System design
Vac supply
Regen drive
L2L1 L3 U V W PE
Motor connections
BR
+DC
-DC
4
Motoring drive
DC Connections*
(High current DC to motoring drive/s)
Motor
Optional ground
connection
CAUTION
The internal EMC filter must be removed
from all drives in the regen system
(motoring and regen).
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