Rockwell Automation H-Series Servo Motor - Manual (Page 6)

6 H-Series Motor Installation Instructions
Publication 1398-IN517A-EN-P — August 2001
Building and Installing Cables
Knowledgeable cable routing and careful cable construction improves
system ElectroMagnetic Compatibility (EMC).
To build and install cables, perform the following steps:
1. Keep wire lengths as short as possible.
2. Route signal cables (encoder, serial, analog) away from motor and
power wiring.
3. Separate cables by a minimum of 0.3 m (1 ft) for every 9 m (30 ft) of
parallel run.
4. Ground both ends of the encoder cable shield, and twist the signal wire
pairs to prevent electromagnetic interference (EMI) from other
equipment.
ATTENTION
!
High voltage can be present on the shield of a
power cable if the shield is not grounded.
Ensure there is a connection to ground for any
power cable shield.
Failure to observe these safety procedures could
result in personal injury or equipment damage.
ATTENTION
!
H-Series motors with high resolution encoders
require the use of Allen-Bradley power and
feedback cables.
H-Series connector kits do not provide the
necessary connector grounding for use with high
resolution encoders.
Failure to observe these safety procedures could
result in personal injury or equipment damage.