DIGITAL AND ANALOG COMMUNICATION INTERFACE COMBINED USE WELDING MACHINE

摘要

The present invention relates to a welding machine (100) used in a welding system having a welder, a feeder, and a welding torch. The welding machine comprises a communication conversion module (110) to compatamize a digital communication feeder and an analog communication feeder. The communication conversion module (110) has two interface terminals (111, 112) connected to the digital communication feeder or the analog communication feeder to be used. According to the present invention, the communication conversion module is mounted inside the welding machine to support both digital and analog communication methods; thus increasing a utilization of the digital and analog communication feeders and the welding torch. Also, the present invention reduces maintenance costs by integrally managing maintenance.