The attached document provides some general concepts and approaches for robust control system installations.
For example, motor power cable's braided shield connected through p-clip to drive RF/EMI grounding lug. Different drives will have different grounding installations; see drive hardware installation guide for specifics.
glh May 2013
jh Aug 2021 added pic
electrical noise PWM switching noise shielding earth ground ground reference earth bond P-clip shield braided shield braid fly-back diode motor choke motor filter AC mains filter line filter isolation EMI electrical interference inductive noise cable routing RF noise intermittent fault faults long motor cable suggestions recommendations ferrite absorbers ferrite clamps clamshells opto-isolation attenuation attenuate isolation transformer enclosure back panel EMC twisted pair conductive radiated return path