【摘要】 本文就电阻焊机控制系统的国内外现状分别进行了论述，认为采用变频焊接电源、变频调速及ＰＬＣ可编程序控制器是提高控制水平的关键，对主电机的软起动有利于减小机械高速运转的冲击。文章还对焊机控制系统的发展前景进行了分析和展望。更多还原

【Abstract】 his paper discusses present situations about a control system of can welding machines respectively in our country and aboard. We think that it is a key of raising control level to adopt power of variable frequency, speed regulation of variable frequency and programmable Logic Controller (PLC ). Soft-start of main motor is beneficial to reducing mechanical shock athigh-speed operation. Besides, we analyseand look ahead the development forground of the control system.更多还原