The User Manual of 580 Series General Frequency Converter

2) Insulation inspection of the motor

The insulation inspection for the motor is required in regular inspection, before reuse after a long time or for the first use in order to prevent that the frequency converter is damaged due to insulation failure of motor windings. The motor must be disconnected from the frequency converter in insulation inspection. It is recommended to adopt 500V megameter and the measured insulation resistance shall not be less than 5MΩ.

3) Thermal protection of the motor

If the motor in use is not matched with the rated capacity of frequency converter, especially when the rated power of frequency converter is more than the rated power of motor, make sure to adjust the parameters for motor protection in the frequency converter or additionally mount the thermorelay in front of the motor to protect the motor.

4) Operation above power frequency

This frequency converter will provide the output power which ranges from 0Hz to 3200Hz. If the user requires operation above 50Hz, please consider the bearing capacity of mechanical device.