Iv an Emco PC Turn 55 I am retro fitting with Linuxcnc. It comes with a 3 phase AC motor. I can't seem to find the specs of the motor. I'm sure it's either 50hz or 60hz. I have a VFD setup. If I run the motor at 50hz, the spindle is at about 1200rpm on the fastest pulleys. If I double the frequency to say 100hz. Will this damage the motor? Motor bearings will be obviously running hotter but can the increased frequency fry the motor?