The home switch detects a collar around the plasma torch near the lower travel limit. The torch floats so it goes down, touches the material, the torch then pushes the collar up slightly till it is sensed by the prox switch. Torch then reverses till the prox switch goes off, then stops and zeros. I want to move up, positive direction, off the home switch. If I put in a value of say .2", the orch tip will contact the material, back up, positive, and be above the material apx .2"
The purpose is to set a height off the material with the homing move so the operators will not have to do it. I can just see an operator homing the torch and starting the plasma with the tip touching the material. I do not want this to happen.