dshelly
Plastic
- Joined
- Jan 15, 2012
- Location
- Montana USA
So I have 2 1993 Mazak QT15N lathes, One has run fine for over 15 years and the other keeps having issues. Machine keeps getting an over voltage alarm followed by a Print circuit alarm if you don't wait long enough when you re start it. I've had the Control rebuilt by Mitsubishi and the Spindle Drive repaired by precision zone in Chicago. My incoming line voltage runs about 250V . Both machines are set up exactly the same. On the problem machine though, if I keep the control door open and run a fan in the back, it will run all day no problem. Any ideas of whats going on? Possible fixes? FR-SF Board? Power Supply ?