CONTROLLER OF THE ELECTRIC WELDING MACHINE

摘要

PURPOSE: A controller of an electric welding machine is provided to easily perform a replacement work by only connecting an electronic circuit part to a main control unit. CONSTITUTION: A controller(200) of an electric welding machine comprises an operation signal processing unit(210) and a main control unit(220). The operation signal processing unit comprises a power terminal, an input terminal, and output terminals. An input signal is inputted to the input terminal depending on the operation of a torch switch. The output signals are selectively controlled on the basis of the input signal. The main control unit is connected to the power, input, and output terminals. The main controller selectively controls the volume of a welding machine body and a wire feeder controller based on the signal.