Research of human-machine interface of digital submerged welding machine

This paper introduces the structure of submerged arc welding based on single chip and dual digital signal processors,also designs human-machine interface system based on MCU.This system is consisted of MCU,LCD,keyboard,FRAM Serial Memory and digital encoder,which can realize welding parameters setting,such as welding voltage,welding current and welding speed etc.Besides,it can also display welding current and welding voltage in dynamic mode.The MCU communicates with DSPs through RS-485.It proves that this system is with high stability,good performance.