PLC高速计数器在凸轮控制器中的应用

为了弥补机械式凸轮控制器存在的众多缺点,利用欧姆龙系列PLC的高速计数器设计了可编程凸轮控制器.根据机械轴选择的坐标零点和轴上安装光电编码盘产生的零点信号是否重合,在软件上对凸轮控制器的设置区间采用不同的逻辑处理方法.设计的凸轮控制器可实现对AC伺服电动机进行分段变速控制以及凸轮一周中的两通两断的控制功能.基于以上2种不同的控制功能,该技术可以广泛应用在金属板材加工设备中.

Application of high-speed counter of PLC to cam controller

A programmable cam controller,which will not have the disadvantages of a mechanical cam controller,was designed based on the high-speed counter of Omron PLC.Depending on whether or not the null point of the mechanical axis is the same as that of the photoelectric coder on the axis,different logical treatment methods were adopted at different angles of the cam controller in the software.The cam controller allows the AC servo motor to run at different speed for different angles,and to turn on and turn off twice during every circle of the cam.Based on the different controlling functions above,this technique can be widely used in metal sheet processing equipments.