What problems should I pay attention to when the motor exceeds 50HZ?
1) It is necessary to operate the machine and the device at this speed (mechanical strength, noise, vibration, etc.)
2) The motor enters the constant power output range, and its output torque should be able to maintain the work (the fan, pump and other shaft output power increases proportionally to the cube of the speed, so pay attention when the speed is slightly increased)
3) Bearing bearing life problems must be fully considered.
4) For motors with a medium capacity or higher, especially for a 2-stage motor, pay special attention when operating above 50 Hz.