Check the documentation that comes with your particular system.
From my AHHA Power System Manual.
"4.6.4 Motor Cable Grounding
DO NOT connect the cable shielding to the motor or frame of your machine. The cable shielding should be trimmed and heat shrink applied. The reason you do not want to connect the ground cable to your motors, is a ground loop noise problem could occur. Just make sure your machine is grounded properly to earth ground." |