Yingkou printing machine will not move when it is electrified.

Yingkou printing machine is not powered on, but the socket is loose. Before turning on the power supply, it is necessary to confirm whether the input voltage is wrong. Check whether the sockets of the driver are connected correctly, loosely and abnormally, which may lead to inverter failure and serious machine failure. Turn on the power supply, detect the fault display content, and preliminarily judge the cause of the fault.