User Guide of EM730 Series Inverter When the inverter is subject to the aforesaid protection, press the STOP/RESET key to reset/clear protection or use the protection resetting terminal to exit the protection status. If the protection has been eliminated, the inverter will return to the function setting status; otherwise, the digital tube will continue to display the current protection information. The protection number corresponds to the digit behind the letter “E”. For example, the digit corresponding to “EXX” is “XX”. For example, E01 corresponds to 1, and E10 corresponds to 10. The prompt codes and description of inverter operation are as follows:
6.2 Protection analysis If the motor does not work as expected due to errors in function setting and external control terminal connection after the inverter is powered on, refer to the analysis in this section for the corresponding solutions. If a protection code is displayed, see the solutions in 错误 ! 未找到引 用源。 . 50 3. Check the external device. E58 Under-pressure in pipeline network 1. The feedback pressure in the water supply application is too low. 1. Check whether the sensor is in the abnormal status. 2. Check the analog terminal for normal detection of analog input. 3. Check the external device. E76 Short circuit to the ground 1. The output is short-circuited to ground. 2.
The inverter module is damaged. 1. Check whether the output cable is broken or whether the motor shell is broken down. 2. Investigate the cause and reset the controller after implementing the corresponding solutions. 3. Seek technical support. Prompt Code Description P.-ON The inverter is in the power-on status. P.-OFF The inverter is in the power-off status. SoFT.E If the soft starter is not engaged, the inverter will show the SOFT.E prompt after startup. When the voltage is restored and the soft starter is engaged, the inverter will work normally.