Re: Random limit switch false trip
In the past there have been many posts with the same subject, In my experience it is mainly down to insufficient grounding.
You will often see manuf. advising against grounding the common of the DC power supply to their equipment, I have usually disregarded this where possible and earth grounded the common at the source, and succeeded in eliminating many problems..
A while ago, Siemens published a paper on their site regarding equi-potential bonding of machine and equipment, also covered is the suggested practice of grounding shields at both ends where this type of bonding is used.
I will see if I can post a copy as it is no longer on their new site.
Many of the previous posts where I suggested this with success goes back so far that many have been deleted under legacy posts by the new owners.
Al.
OOP's Sorry Jim Inadvertantly posted the PDF on your post, can't seem to remove it.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.