A06B-6088-H226

A06B-6088-H226 机械结构引起的抖动可分为两种情况：  

1)空载抖动：   a.电动机基础不牢、刚度不够或固定不紧。   b.风扇叶片损坏，破坏了转子的机械平衡。   c.机轴弯曲或有裂纹。可通过紧固螺钉、更换风扇叶片、更换机轴等办法解决。   2)如果加负载后抖动，一般是传动装置的故障引起，可判断以下部位存在缺陷：   a.胶带轮或联轴器转动不平衡。   b.联轴器中心线不一致，使电动机与所传动的机械轴线不重合。   c.传动胶带接头不平衡。可通过校正传动装置使之平衡等办法解决。  

二.速度环问题引起的抖动：   速度环积分增益、速度环比例增益、加速度反馈增益等参数不当。增益越大，速度越大，惯性力越大，偏差越小，越易产生抖动。设定较小的增益可维持速度响应，不易产生抖动。  

三.伺服系统的补偿板和伺服放大器故障引起的抖动：   电机运动中突然掉电停止，产生很大抖动，与伺服放大器BRK接线端子以及设定参数不当有关。可增加加减速时间常数，用PLC缓慢启动或停止电机使之不抖动。  

A06B-6088-H226 

A06B-6088-H226

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