The inverter must be regularly maintained during use.

For load-changing load intermittent load and short-time load driven by pole and pole-changing motors, the capacity of the inverter should be selected according to the maximum operating current that may occur during operation, that is, the rated current of the inverter in the 枷-type inverter最大Maximum working current of 枷 motor Two examples of inverter selection: One oil pump adopts inverter control, talk about inverter selection and routine maintenance. Use inverter. During operation, it is found that although the given frequency is high, the actual frequency cannot be adjusted, and the inverter often trips. After inspection, the rated current of the inverter is the fluctuation of the running current of the oil pump motor, and the driving torque reaches the limit setting, so that the frequency cannot be adjusted upwards, and the running current is greater than the rated current of the inverter, causing the inverter to over-current trip. The reason is that the inverter capacity is too small. The oil pump is a constant torque load, and it is better to use a frequency converter with a wide driving torque limit range. The above problem has never occurred after selecting a rated voltage of the inverter as the rated output current as the driving torque limit.

Routine maintenance and inspection of the inverter The inverter is a static device with a semiconductor component as its core. It will malfunction due to the influence of the environment such as temperature, humidity, dust, vibration, and aging of components. In addition, the inverter uses a filter capacitor to cool the fan and other consumable devices, so daily inspection and regular maintenance are essential. Proper use of proper maintenance can extend the life of the drive and reduce the loss of production due to sudden failures. Regular maintenance of the inverter In order to prevent malfunctions caused by aging and abnormalities of the components, the inverter must be regularly maintained during use and replaced with aging components as needed. Regular maintenance should be placed during the temporary shutdown and after the drive has been shut down.