140CFC03200
140CFC03200
140CFC03200
请教倍频数的概念,比如2048线的编码器,是2048个脉冲转一圈,那运动控制器4倍频是什么意思,还有和电子齿轮混在一起怎么用,电子齿轮是控制器设置给电机?
答:位控基本***关系为:P×G=R×C×4
其中P为脉冲发生装置的输出频率;G即为电子齿轮比;R为电机轴转数;C即为编码器分辨率也就是线数。常数4即为4倍频。从以上关系中可以看出电子齿轮的作用就是为了更好的匹配脉冲发生装置发出的脉冲频率;倍频就是为了提高系统精度,简单地说就是把一个反馈脉冲当成4个用。上式左边部分为控制器接受脉冲发生装置信号部分,右侧为接受电机反馈脉冲部分。
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