Axis Soft Overtravel (Soft OT) Alarms: Stroke Limit Function for Fanuc Controls
A basic principle of CNC repair and troubleshooting that is suprisingly unfamiliar to alot of people is the soft overtravel limit (software overtravel). It does seem to come up alot when dealing with CNC machines. What is it and why does it generate CNC alarms? Here are a few basics:
CNC Repair Tip #6: Mori Seiki Lathe Not Moving in G01 Feed Mode
Every now again, I get a call about this CNC service problem: The machine (always a CNC lathe in my experience), suddenly ceases to feed toward the part in X or Z axis in the G01 (feed) mode. Handwheel works, zero-return, rapid are all fine. It’s when the machine is programmed in inches or millimeters per revolution that you would see this problem. I think most people who work on CNC machines may know the answer to this one pretty quickly, but for those who may not, here you go.