My Shapeoko Pro XXL with the 1.5kw PWNcnc spindle and the VFD that comes with it. The spindle started disconnecting. I had to completely shutdown Carbide Motion, turn off the CNC and restart everything. This happened several times yesterday. I was surfacing a 18x18 area with a 1.250 cutter if that makes a difference. I was able to complete the job. Reading thru some post I think this may be a grounding situation. I do not have the knowledge to know where to run a grounding strap to see if this fixes the problem. I have been running this setup for a year and a half with no issues. Will someone explain the grounding process or better yet point me to a schematic that shows this?
Ive tried plugging in the cnc and vacumm into 2 different breakers, and this does not work. I A 20 guage copper wire wrapped around my dust hose, but I dont think its thick enough and i dont think i have grounded it properly. I will have to fix this.
But i have been getting the same issues in the last month. My shop is located in cottonwood AZ, elevation 3300.
Thank You, I have two shop vacs that creates major amounts of static electric. One is used for dust extraction for the CNC.
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