There are various types of faults in frequency converters, and maintenance and troubleshooting need to be carried out according to specific situations. The correct installation, use, and maintenance methods, as well as standardized operating procedures, can effectively prevent the occurrence of frequency converter failures. The common faults of frequency converters mainly include the following: Overcurrent fault Cause: Due to excessive load current or damage to internal components of the inverter, the inverter protection is triggered. Solution: Check if the load current is too high, if there are any short circuits or other issues, increase the cable cross-sectional area or install voltage reducing devices, or replace internal components such as capacitors.   Overheating fault Cause: Excessive heating of internal components or heat sinks in the frequency converter can trig...