78 Rockwell Automation Publication 2198-UM001I-EN-P - May 2019
Chapter 5 Connect the Kinetix 5500 Drive System
Figure 41 - Ungrounded Power Configuration
(1) The AC ground jumper is removed and the DC ground jumper is removed. See Figure 42 on page 79 for access to ground screws.
Refer to Power Wiring Examples beginning on page 194 for input power
interconnect diagrams.
Ground Screw Settings
Determine the ground screw setting for your Kinetix 5500 servo drives.
Table 32 - Ground Screw Settings
Transformer
Three-phase
Input VAC
Chassis Ground
Bonded Cabinet Ground
Ground Grid or
Power Distribution Ground
Connect to
Ground Stud
Kinetix 5500 Servo Drive
(top view)
Circuit
Protection
Transformer (Delta) Secondary
AC Screw
(1)
DC Screw
ATTENTION: Ungrounded systems do not reference each phase potential to
a power distribution ground. This can result in an unknown potential to earth
ground.
Ground Configuration Example Diagram Ground Screw Setting
Grounded (wye) Figure 37 on page 75
Both screws installed (default setting)
• AC fed ungrounded
• Corner grounded
• Impedance grounded
Figure 41 on page 78
Figure 39 on page 76
Figure 38 on page 76
Both screws removed
Single-phase input power Figure 40 on page 77 AC screw removed
(1)
(1) Removing the AC ground screw to minimize leakage current in single-phase operation can affect EMC performance.
ATTENTION: To help prevent damage to the servo drive, you must set the
ground screws according to the example diagrams that are summarized in
Table 32
.
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