In industrial production, frequency converter is a commonly used electric drive equipment, which is widely used in motor control and speed regulation system. However, sometimes we may encounter the situation that the inverter fails to reset, which brings troubles and influences to the production. Knowing the reasons why the inverter can’t be reset and the corresponding treatment methods can help us solve the problem better and ensure the normal production. The following will explain this problem, and explain the reasons why the inverter fault cannot be reset and the corresponding treatment methods.
1. Power failure: If the inverter cannot be reset, first check whether the power supply of the inverter is normal. The unstable power supply may be caused by poor power contact, power line failure or power regulator failure. The solution is to check whether the power line is in good contact, replace or repair the power line fault and check and replace the power regulator.
2. Control panel failure: The control panel of the inverter is one of the key components to control the operation of the inverter. If the control panel fails, it cannot be reset. The failure of the control panel may be caused by damaged components of the control panel, loose circuit connection or errors in the control program. The solution is to check whether the components on the control board are normal, plug and unplug the circuit connection again, and download the correct control program again.
3. Communication failure: The frequency converter usually needs to communicate with the upper computer or other equipment. If the communication fails, the frequency converter may not be reset. Communication failure may be caused by communication line failure, communication parameter setting error or communication protocol mismatch. The solution is to check whether the communication line is normal, reset the communication parameters, and ensure that the communication protocol matches the upper computer or other equipment.
4. Overload protection: In the process of using the inverter, if the load is too large or the operating environment is abnormal, the inverter will enter the overload protection state, and the inverter cannot be reset at this time. The solution is to reduce the load or improve the operating environment. After the load and environment return to normal, the inverter can be reset normally.
5. Other faults: There may be other factors for the failure of the inverter to be reset, such as aging of internal components of the inverter, damage of the circuit board, motor failure, etc. The solution is to check whether the internal components and circuit board of the inverter are normal, and repair or replace the faulty components.
When the inverter fails to reset, it is necessary to carefully investigate the possible causes and eliminate them one by one. At the same time, in the process of using the inverter, regular maintenance should be carried out to avoid failures.