Rockwell Automation N-Series Brushless Servo Motor - Manual (Page 4)

4 N-Series Motor Installation Instructions
Publication 1398-IN519A-EN-P — March 2001
Preventing Electrical Noise
ElectroMagnetic Interference (EMI), commonly called noise, may
adversely impact motor performance by inducing stray signals. Effective
techniques to counter EMI include filtering the AC power, shielding and
separating signal carrying lines, and practicing good grounding
techniques.
Effective AC power filtering can be achieved by using isolated AC power
transformers or properly installed AC line filters.
To help avoid EMI:
1. Physically separate signal lines from motor cabling and power wiring.
Do not route signal wires with motor and power wires, or over the vent
openings of servo drives.
2. Ground all equipment using a single-point parallel ground system that
employs ground bus bars or large straps. If necessary, use additional
electrical noise reduction techniques to reduce EMI in noisy
environments.