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Author Topic: Random E-Stop on Mach?  (Read 1241 times)

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Random E-Stop on Mach?
« on: December 14, 2013, 11:37:20 AM »
My machine keeps giving me an "external E-stop" and shutting down in the middle of jobs at random. Sometimes it will run thru a job with no issue and other times I cannot get a single job completed before getting this error. When I go to diagnostics the Estop input is blinking but there is no real estop input on the port. The machine will not allow me to reset the condition until AFTER I give it a real estop and then it will let me reset it. I am using a G540 for breakout inputs/outputs and operation. Electrical noise has never been an issue with my machine and today is very wet outside and so very little if any static discharge would be possible.

Any thoughts?

Is there a debounce timer in Mach for the inputs if it is a noise issue?


Offline Tweakie.CNC

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Re: Random E-Stop on Mach?
« Reply #1 on: December 14, 2013, 12:04:28 PM »
Is there a debounce timer in Mach for the inputs if it is a noise issue?

Config / Gen. Config - Input Signal Debouncing / Noise rejection.

If increasing this to say 2000 cures the problem then you may want to check your limit switches for quality / shielded wiring etc.

Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.