How to operate when the PLC interface has a fault display after the jerry can blow machine is turned on

PLC control system has strong self-diagnosis ability. The equipped LED screen has the function of diagnostic display. When the jerry can blow machine PLC control system itself or its supporting equipment fails, it can be diagnosed through the indication status of the lights on the LED screen.

By excluding the found cases one by one：

1. Power light status
2. Running light status
3. Battery Indicator Status

Check whether the 6 proximity switches are normal. If all the jerry can blow machine lights are on, it means that all actions can be carried out normally. If some lights are not on, it can be judged which action has a problem, so as to carry out corresponding maintenance.