124 Rockwell Automation Publication 2198-UM002L-EN-P - October 2021
Chapter 5 Connect the Kinetix 5700 Drive System
Regenerative Bus Supply
Before wiring input power to your 2198-RPxxx regenerative bus supply, you
must determine the type of input power within your facility. The regenerative
bus supply is designed to operate in grounded-wye and impedance grounded
environments. Corner-grounded and ungrounded power can be used, but you
must add an isolation transformer to the input power circuit to provide
grounded-wye power.
Grounded Power Configurations
This grounded (WYE) power configuration (Figure 76) grounds the three-
phase input power at a neutral point. This is the preferred grounded power
configuration.
Figure 76 - Grounded Power Configuration (WYE secondary)
(1) 2198-RPxxx power supply has the ground jumper installed. 2198-xxxx-ERSx inverters have the ground jumpers removed.
ATTENTION: For IEC 61800-3 category C3 compliance, use the appropriate
2198-DBRxx-F AC line filter with a grounded WYE configuration. Use of the AC
line filter in an ungrounded or corner-grounded configuration (without an
isolation transformer) or in an impedance-grounded configuration can
affect the line filter components and result in equipment damage.
2198-DBxx-F line filters are not compatible with regenerative bus supplies.
Transformer
Three-phase
Input VAC
Phase Ground
Transformer (WYE) Secondary
Bonded Cabinet
Ground
Ground Grid or
Power Distribution Ground
Connect to drive module
ground stud.
AC Line Filter
(required for CE)
Circuit
Protection
2198-RPxxx
(1)
Regenerative Bus Supply
(bottom view)
M1
Contactor
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