ABB inverter common fault judgment method and treatment.
1. Parameter setting.
ABB inverters. Usually, the manufacturer sets a default value for each parameter at the factory, and these parameters are called factory values. For these parameter values, the user can operate normally through the panel operation, but the panel operation does not meet the requirements of most transmission systems. Therefore, before using the inverter correctly, the user must check the inverter parameters in the following aspects:
1) Check the motor parameters. The inverter sets parameters such as motor output, current, voltage, speed and maximum frequency. These parameters can be obtained directly from the motor nameplate.
2) The control mode adopted by the inverter, such as speed control, torque control, PID control, etc. After the control method is adopted, it is generally necessary to carry out static or dynamic identification according to the control accuracy.
3) Set the starting mode of the inverter. Typically, the inverter is set to start from the panel at the factory. You can choose the startup mode based on the actual situation. You can use panels, external terminals, communication methods, etc.
4) For the selection of a given signal, there can be a variety of ways to set the frequency of the general inverter, including panel setting, external setting, external voltage or current setting, communication mode setting, and of course, inverter frequency setting. .The setting can also be the sum of one or more of these methods. If the above parameters are set correctly, the inverter can basically operate normally. If you want more control, you can only change the relevant parameters according to the actual situation.
If there is an error in the parameter setting, the inverter will not function properly. You can usually change the parameters manually. If the above methods don't work, we recommend that you reset all parameters to factory values and use the steps above to reset. The method of recovering parameters varies from drive to drive.