Quote Originally Posted by charlieuk View Post
OK. So I'm sure it is machine side of things as I does it without any file loaded. Trying to find a manual is proving hard but I found one for sale saying it does 400 hz just not sure if its set to that.
Just don't change any parameters without knowing what you are changing. If you start experimenting without manual and just guess you may fry the VFD or the motor. Perhaps Mactec54 can maybe help you over on CNCZone.