forum.cncdrive.com

I am running uccnc software with uc300eth, C95 board, pup no proximity switches for my limit switches. The machine has been running g great like this for about a yr. This morning the over travel light is on but nothing is even close to a sensor. I can take piece of metal and put in front of each sensor, and the red-light on the sensor will come on, and then go off when I move it away.

Could I have one bad sensor that is causing it to throw all of them? Or has my controler, or my break out board gone bad?

David

Try to disconnect the sensors from the board and check if the problem still happens?
If nort then it could be a broken sensor or it's wire is broken.