Alan, 50Hz will run on 60Hz, but for how long. The reason being is 50Hz motors are designed to operate at a different voltage. Not our US standard 120,240,460 and 575 VAC
Example: IEC standards on a 3 phase motor at 50Hz would require 380 volts ac, not 460.
I have had customers that received 50Hz motors on equipment and wanted to know if we could rewind for 60Hz, which we could. But, we usually told them to run it until it quits and buy another 60Hz meteric motor to install when needed. This was for smaller motors. Larger motors we told them to pull it and give us the required time to rewind or replace.
If it was on a VFD then we would just program the drive for 50Hz.
