VFD and motor compatibility
There is also the matter of the suitability of the motor winding insulation to withstand the stresses caused by how VFDs operate. As a general rule, newer motors are being made with winding insulation that is designed for higher voltages so that they can better handle being operated from a VFD. But your motor nameplate looks old, so it likely was not made with these newer materials. The result will be a foreshortened useful life of the motor, maybe as short as a few weeks. You can purchase what's called a &quot;sine wave filter&quot; to go between the VFD and the motor, but that filter will likely cost you as much or more than the cost of a newer more suitable motor.