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Galil / Re: Random E-stops Doesnt Seem to be Noise Related?? Fix it and I'll pay you a BUCK!
« on: May 13, 2017, 01:48:10 AM »
Unfortunately there is no one answer that suits all situations – electrical noise (and I am sure that is the problem) is bit of a chameleon.
A couple of suggestions…
1) A single point (star) EARTH with all cable shields taken to this one point (shields left unconnected at their far ends).
2) RFI filters fitted to both the VFD supply input and the machine controller supply input.
3) 0.1uF capacitor fitted between each used breakout board switch Input and GND.
4) Routing input signal cables (switches, etc.) away from ac power cables.
I don’t suppose 10 bucks buys much Beer these days but that always seems to help me with problem solving.
Tweakie.
A couple of suggestions…
1) A single point (star) EARTH with all cable shields taken to this one point (shields left unconnected at their far ends).
2) RFI filters fitted to both the VFD supply input and the machine controller supply input.
3) 0.1uF capacitor fitted between each used breakout board switch Input and GND.
4) Routing input signal cables (switches, etc.) away from ac power cables.
I don’t suppose 10 bucks buys much Beer these days but that always seems to help me with problem solving.

Tweakie.