Three-phase power wired to three-phase drives – Rockwell Automation 2097-Vxxx Kinetix 350 Single-axis EtherNet/IP Servo Drive User Manual User Manual
Page 53
Rockwell Automation Publication 2097-UM002C-EN-P - December 2013
53
Connect the Kinetix 350 Drive System Chapter 4
Three-phase Power Wired to Three-phase Drives
These examples illustrate grounded three-phase power wired to three-phase
Kinetix 350 drives when phase-to-phase voltage is within drive specifications.
Figure 26 - Three-phase (400/480V) Power Configuration (WYE secondary)
Figure 27 - 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 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.
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
IMPORTANT
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 means that the power system must use center grounded wye
secondary configuration for 400/480V AC mains.
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