Limit/Home Switch Noise
I recently got my Home Switches going and decided to go ahead and enable them to act as limit switches too. That’s when I became aware of just how much noise there was on the lines. I was getting a gratuitous limit fault from noise about every 2 to 3 minutes. No worries, I did what I should have done to start and grounded the foil inside my cables to the CNC electronics cabinet via their connector. The noise went away immediately and life has been good since.
If you didn’t think you had much noise in your system, maybe its because you didn’t have a way to check? Ground the cables at the electronics cabinet end (not the machine end, that can create ground loops).
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[...] I got this from one of Al the Moderator's posts. Here's one from CNCCookbook http://cnccookbook.wordpress.com/201…-switch-noise/ Curtis PS I don't own a NM-200, I'm looking at the NM-145 as you are. Last edited by [...]