Improper use of the inverter, it's not only can't show its excellent features, but also may damage the inverter and its equipment, like cause interference impact etc, therefore following points should be concerned:

1. Choose the frequency inverter properly.
2. Read the product user manual carefully, and wiring, install it under the manual specification requirements.
3. The frequency inverter should be grounded properly, to reduce radio interference and prevent the inverter from electric leakage shock.
4. While use inverter to control electric motor speed, the temperature and noise of the motor is higher than power frequency electricity grid; In low speed status, should pay attention to ventilation cooling or appropriate to reduce the load as the motor fan speed is slow, in order to avoid motor temperature rise exceeds the allowable value.

5. The impedance of the power supply lines can not be too small. Inverter access to the low-voltage grid distribution transformer capacity of more than 500KVA, or distribution transformer capacity is 10 times greater than the capacity of the inverter, or the inverter connected to the place very close from the distribution transformer, loop impedance, input the moment the great inrush current of the inverter, rectifier elements will damage the frequency inverter.