Rockwell Automation Publication 2198-UM004D-EN-P - December 2022 83
Chapter 4 Connect the Kinetix 5100 Drive System
Figure 50 - Single-phase (230V) with Three-phase AC Line Filter Grounded Power Configuration
Three-phase Input Power used with Single-phase Drives
This example illustrates grounded three-phase power that is wired to single-
phase Kinetix 5100 drives when phase-to-phase voltage exceeds drive
specifications.
A neutral must be connected when single-phase drives are attached to a three-
phase isolating transformer secondary. It is not necessary that all three-phases
be loaded with drives, but each drive must have its power return via the neutral
connection.
Figure 51 - Single-phase Amplifiers (one AC line filter per drive)
L2
L1 (Neutral)
L3
L2
L1
E
L3
L2
L1
L3
L2
L1
L1C
L2C
Transformer Secondary
Bonded Cabinet Ground Bus
Ground Grid or
Power Distribution Ground
AC Line
Filter
230V AC
Output
Circuit
Protection
Mains AC Input
Power Connector
Control AC Input
Power Connector
Circuit
Protection
2198-E1004-ERS, 2198-E1007-ERS,
2198-E1015-ERS, and 2198-E1020-ERS
Drives with Single-phase Operation
ATTENTION: Failure to connect the neutral can result in supply voltage
swings at the individual drives. Voltage swings occur when the neutral point
changes as a result of load variations experienced by the individual drives.
The supply voltage swing can cause undervoltage and overvoltage trips on
the drives, and the drive can be damaged if the overvoltage limit is
exceeded.
L3
L2
L1
L2
L1
L2
L1
L2
L1
L2
L1
L2
L1
E
E
E
L2
L1
L2
L1
L2
L1
L2
L1
Bonded Cabinet Ground Bus
Transformer (wye) Secondary
Ground Grid or Power Distribution Ground
AC Line
Filter
AC Line
Filter
AC Line
Filter
Kinetix 5100 Drives
(System A)
Single-phase AC Input
Grounded
Neutral
Grounded Neutral
Kinetix 5100 Drives
(System B)
Single-phase AC Input
Kinetix 5100 Drives
(System C)
Single-phase AC Input
Circuit
Protection
2198-E1004-ERS, 2198-E1007-ERS,
2198-E1015-ERS, and 2198-E1020-ERS
Drives with Single-phase Operation
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