Re: False Limit switch Errors rear's it ugly Head!!!!!!!!
Years ago the old adage was to ensure only one end of a cable shield was connected to earth GND, the reason expounded for this was the possibility of causing a dreaded ground loop.
Now with the practice of equi-potential bonding, now grounding both ends of the shield is preferred, as outlined in the Siemens and Schneider PDF's.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.