1. If you are sure that the “main parameters, current flow, working voltage, acceleration and deceleration time, and these are all normal” of your frequency converter, it means that the mobile phone software of the frequency converter is no problem.
2. Look at the abnormal display information on the control panel of the frequency converter, such as alarms and common fault numbers. If there are alarms or common faults, carry out the cause inventory.
3. If all the display information of the variable frequency speed controller is normal, and the China Induction AC Motors Suppliers working voltage and current are also normal during operation, then check the upper control data signal and route of the frequency conversion speed controller to see if it suffers This caused the wrong operation of the inverter shutdown. If there is no alarm, check your control circuit to see if there is a bad connection or influence. If it is operated by analog input, use a digital multimeter to check whether the plc analog input and output vibrate. Replace or check for soft start. The cable between the generator and the motor, the grounding device will trip in a short time if the cable is worn out, and there is probably no problem waiting for you to test.
If it is a non-alarm sub-category, is there any problem with the communication; if there is not all the alarm information, in addition, you undoubtedly did a quick adjustment of P1910=1. Then: If OFF2 parking is applied. It may be that the control circuit of the terminal block has areas that are not well touched. For example, problems such as automotive relay contact points.
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