Rockwell Automation 2093-xxxx Kinetix 2000 Multi-axis Servo Drive User Manual - Manual (Page 20)

Publication 2093-UM001A-EN-P — March 2007
20 Planning the Kinetix 2000 Drive System Installation
• Size the drive enclosure so as not to exceed the maximum ambient
temperature rating. Consider heat dissipation specifications for all drive
components and other devices that radiate heat into the cabinet.
• Segregate input power wiring and motor power cables from control
wiring and motor feedback cables as they leave the drive. Maintain this
separation throughout the wire run.
• Use Rockwell Automation/Allen-Bradley shielded cable for power
wiring and provide a grounded 360° clamp termination to the enclosure
wall.
• Use high-frequency (HF) bonding techniques to connect the modules,
enclosure, machine frame, and motor housing, and to provide a
low-impedance return path for high-frequency (HF) energy and reduce
electrical noise.
Refer to the System Design for Control of Electrical Noise Reference
Manual, publication GMC-RM001, to better understand the concept of
electrical noise reduction.
Transformer Selection
The integrated axis module (IAM) does not require an isolation transformer
for three-phase input power. However, a transformer may be required to
match the voltage requirements of the controller to the available service.
To size a transformer for the main ac power inputs, refer to the Circuit
Breaker/Fuse Specifications on page 157 and Transformer Specifications for
Control Power Input on page 159. Multiple power rails in a single cabinet
require additional transformers or additional transformer capacity.
Example: Sizing a transformer to the voltage requirements of a
2093-AC05-MP5 Integrated Axis Module:
2093-AC05-MP5 = 3 kW continuous x 1.5 = 4.5 KVA transformer
IMPORTANT
To improve the bond between the power rail and subpanel,
construct your subpanel out of zinc plated (paint-free) steel.
IMPORTANT
If using an autotransformer, make sure that the phase to neutral/
ground voltages do not exceed the input voltage ratings of the drive.
IMPORTANT
Use a form factor of 1.5 for three-phase power (where form factor is
used to compensate for transformer, drive module and motor losses,
and to account for utilization in the intermittent operating area of the
torque speed curve).