Rockwell Automation Publication 2097-UM002D-EN-P - April 2017
53
Connect the Kinetix 350 Drive System
Chapter 4
Three-phase Power Wired to Three-phase Drives
These examples illustrate grounded three-phase power that is wired to three-
phase Kinetix 350 drives when phase-to-phase voltage is within drive
specifications.
Figure 27 - Three-phase (400/480V) Power Configuration (WYE Secondary)
Figure 28 - Three-phase (240V) Power Configuration (Delta Secondary)
(1) Leakage current from the line filter, in this configuration, typically is higher than a balanced (center ground) configuration.
Figure 29 - Three-phase (240V) Power Configuration (Delta Secondary)
(1) Leakage current from the line filter, in this configuration, typically is higher than a balanced (center ground) configuration.
L3
L2
L1
IPD
L3
L2
L1
E
L3
L2
L1
L3
L2
L1
Transformer (WYE) Secondary
Kinetix 350 Drives
Three-phase AC Input
Bonded Cabinet Ground Bus
Ground Grid or
Power Distribution Ground
AC Line
Filter
M1
Contactor
Input Fusing
Feeder and branch short circuit
protection is not illustrated.
2097-V34PRx-LM
ATTENTION:
For the 480V Kinetix 350 drives to meet proper voltage
creepage and clearance requirements, each phase voltage to ground must be
less than or equal to 300V AC rms. This requirement means that the power
system must use a center grounded wye secondary configuration for 400/
480V AC mains.
See Appendix C for leakage currents.
L3
L2
L1
IPD
L3
L2
L1
E
L3
L2
L1
L3
L2
L1
Transformer (Delta) Secondary
Kinetix 350 Drives
Three-phase AC Input
AC Line
(1)
Filter
Bonded Cabinet Ground Bus
Ground Grid or Power Distribution Ground
M1
Contactor
Input Fusing
Feeder and branch short circuit
protection is not illustrated.
2097-V33PRx-LM
L3
L2
L1
IPD
L3
L2
L1
E
L3
L2
L1
L3
L2
L1
Transformer (Delta) Secondary
Kinetix 350 Drives
Three-phase AC Input
AC Line
(1)
Filter
Bonded Cabinet Ground Bus
Ground Grid or Power Distribution Ground
M1
Contactor
Input Fusing
Feeder and branch short circuit
protection is not illustrated.
2097-V33PRx-LM
