Inverter fault diagnosis and maintenance
Inverter is a kind of equipment widely used in various industrial control systems, it can adjust the frequency and voltage of the input power supply, so that the output power can be adjusted according to the need. However, due to prolonged use or improper operation, the inverter may fail. This paper will introduce the method of fault diagnosis and maintenance of inverter in detail, detail and detail.
First, fault diagnosis
1. Frequency converter can not start:
When the inverter can not start, the first need to check whether the power supply is normal. Use a multimeter to check the power supply voltage and ensure that the power supply voltage is within the normal range. Next, check and ensure that the control line of the inverter is properly connected and the control signal is correct. If there is no problem in the above steps, then the fault may be on the circuit board of the inverter, at this time it is recommended to ask professional maintenance personnel for detection and maintenance.
2. The inverter cannot output stable voltage:
When the inverter cannot output a stable voltage, you can first check whether the load is normal. After disconnecting the load, restart the inverter and observe whether the output voltage is stable. If the output voltage is still unstable, it may be due to a problem with the control board, which needs to be recalibrated or replaced. If the output voltage is stable, the load may be faulty. You need to check whether the load parameters are set correctly or the load is faulty.
