The electromagnet does not pull in, which is mostly caused by the internal failure of the main engine, the burnout of the electromagnet coil, and the line interruption. The solutions are: first, check whether there is a problem inside or outside the host; secondly, check the electromagnet safety tube to see if there is any sign of electricity on the electromagnet and eliminate the mechanical jamming.




The internal power supply is detected when everything is normal. The causes of this fault are: Sensor damage, voltage fault of supply bridge, wrong connection or interruption of circuit. The troubleshooting method is: detect the load signal of sensor and connecting line or host, and detect the bridge and amplification circuit or computer output display circuit, sometimes there will be a system The stability of the system is not good, which leads to the instability of the bagged quantity