ABB沉余控制器PM864K02

PM864K02

PM864K02

作为控制用特殊电机，步进电机是将电脉冲转换成角位移的致动器。当步进驱动器输入脉冲信号时，驱动步进电机使设定的角度(步进角度)的角度旋转，以的角度依次执行该旋转。角度位移可以通过控制脉冲数来控制，以实现准确定位的目的，同时可以通过控制脉冲频率来控制电机的旋转速度和加速度，以实现速度控制的目的。如果绕组的电源接通顺序被变更，则电机相反。

驱动器原理

步进电机需要由由脉冲产生控制单元、功率驱动单元、保护单元等构成的特殊步进电机驱动。属于步进电机和微控制器之间的功率接口。

控制指令部接收脉冲和方向信号，对应的脉冲产生控制部生成对应的相位数的脉冲组，通过功率驱动部后向步进电机输送，步进电机在对应的方向旋转步进角。驱动程序的脉冲设定模式决定步进电机的动作模式。

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