Nidec Unidrive M600 Series - 6.1 Power connections; 6.1.1 AC and DC Regen connections

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106 Unidrive M Regen Design Guide
Issue Number: 4
6.1 Power connections
6.1.1 AC and DC Regen connections
Figure 6-1 Unidrive M size 3 Regen drive power connections
* It is possible to connect the DC bus of a number of drives using a busbar kit (part number: 3470-0048), 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
3
DC Connections*
(High current DC to motoring drive/s)
BR
+DC
-DC
Internal
EMC filter
Must be
removed
Regen drive
L1, L2, L3
(Refer to Chapter 4
)System design
Vac supply
L2L1 L3 U V W PE
Motor connections
3
BR
+DC
-DC
Internal
EMC filter
Must be
removed
Motoring drive
Motor
Optional ground
connection
CAUTION
The internal EMC filter must be removed
from all drives in the regen system
(motoring and regen).