施耐德产品140DAO85300 Quantum

140DAO85300 Quantum

步进电机减速机错位即是失步，失步分为丢步和越步。步进电动机正常工作时，每接收一个控制脉冲就移动一个步距角，即前进一步。若连续地输入控制脉冲，电动机就相应地连续转动。丢步时，转子前进的步数小于脉冲数;越步时，转子前进的步数多于脉冲数。一次丢步和越步的步距数等于运行拍数的整数倍。丢步严重时，将使转子停留在一个位置上或围绕一个位置振动，越步严重时，拖动结构将发生过冲。

关于步进电机减速机丢步和失步的分析：

步进电机减速机选型不当，电机力矩不够或者物体运动的惯量超过电机自锁力，造成的丢步或失步。

驱动器选型不当，配套的驱动器电流偏小，影响电机正常运转，现在市面上很多电流虚标的驱动器，拿峰值电流当额定电流来忽悠消费者，驱动器选型额定电流应大于步进电机减速机额定电流的1.2-1.5倍。

配套电源选型不当，配套电源应是驱动器额定电源的1.5-2倍，电源虚标比驱动器虚标更严重。

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