巴赫曼BS208 Bachmann

BS208

导轨和丝杆出现问题引起负载惯量增大。导轨和丝杠的转动惯量对伺服电机传动系统的刚性影响很大，固定增益下，转动惯量越大，刚性越大，越易引起电机抖动；转动惯量越小，刚性越小，电机越不易抖动。可通过更换较小直径的导轨和丝杆减小转动惯量从而减小负载惯量来达到电机不抖动。

a.制动没打开，反馈电压不稳等因素引起。检查制动是否打开，通过加编码器矢量控制零伺服功能，采用降力矩的方式输出的的转矩解决抖动。反馈电压不正常应先检查振动周期是否与速度有关，若有关，则应检查主轴与主轴电机的连接方面是否有故障，主轴以及装在交流主轴电机尾部的脉冲发生器是否损坏等，若无关，则应检查印刷线路板上是否故障，需要查看线路板或重新调整。

b.电动机运行中突然抖动，大多是缺相造成的，应重点检查熔断器熔体是否熔断，开关接触是否良好，并测量电网各相是否有电。

有了这些网友分析的观点，您是否对伺服电机运行时抖动的原因有个大致的了解了呢？遇到这种情况，可以根据网友观点中分析的原因进行排查，另外，平常也可以注意这些问题，避免伺服电机运行时抖动。

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