I’ve had random disconnect errors from my CNC machine - some jobs it would happen several times. Other times I’d go weeks without issues - I’ve always chalked it up to static/relative humidity/randomness.
I think I’ve figured out what my issue is, and this might help someone in the future. On certain jobs, or after I’d disconnected and reconnected my hose, the slack in the hose woiuld change, and then when the CNC would reach a specific position on the current job, the vacuum hose would touch up against the wiring harness causing the CNC to lose connection - I only noticed as the CNC was consistently disconnecting when it reached a certain position pulling the hose taught against the harness. Pictures attached -
You were right. It was static. I see the snowy scene out your window and the humidity drops when it freezes outside.
I used to work for Oracle/Sun and we were required to use static protection mats etc. The big computer rooms I was working in were cold and the humidity was low. Changing out $100,00.00 dollar boards they did not want them damaged due to static. It was a pain to use the static equipment but necessary. Even in industry clean rooms static is ever present. So even in rooms prepared for static it can still happen. At least your figured it out.
