SPAD346C3/RS621005-AA
SPAD346C3/RS621005-AA
SPAD346C3/RS621005-AA
数控主要原理：是利用数字化程序对机械运动及加工过程进行控制的一种方法。先将被加工零件的有关信息（几何信息、工艺信息等）表示成数字控制装置所能接受的指令信息，然后由数字控制装置对指令信息和反馈信息进行处理，计算出机床各坐标运动的控制信息，后将控制信息转换为机床各坐标部件的实际运动，加工出符合设计要求的零件。
数控系统由三大部分组成：控制系统，伺服系统和位置测量系统。
1）控制系统按加工工件程序进行插补运算，发出控制指令到伺服驱动系统；控制系统主要由总线、CPU、电源、存贮器、操作面板和显示屏、位控单元、可编程序控制器逻辑控制单元以及数据输入/输出接口等组成。还包括一个通讯单元，它可完成CNC、PLC的内部数据通讯和外部高次网络的连接。
2）伺服驱动系统将控制指令放大，由伺服电机驱动机械按要求运动；伺服驱动系统主要包括伺服驱动装置和电机。
3）测量系统检测机械的运动位置或速度，并反馈到控制系统，来修正控制指令。位置测量系统主要是采用长光栅或圆光栅的增量式位移编码器。
这三部分有机结合，组成完整的闭环控制的数控系统。
Eaton Cutler Hammer 9253C03H01 Neutral Sensor
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EATON CUTLER HAMMER 14957-H9-B 3 pole Cable Operated Limit Switch 14957H9B
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EATON CUTLER HAMMER 1451E-6537 POLARIZED
