6ES7321-1BH10-0AA0

6ES7321-1BH10-0AA0 1、本机调速

本机调速可通过键盘数字和本机电位器实现，键盘数字就修改P00.10的参数进行，需要将频率指令选择为0(键盘数字设定)，本机电位器是模拟量调速的方法，旋转键盘上的模拟电位器设定，需要将频率指令选择为1(模拟量AI1)。

2、多段速调速

这个是简单的频率设定方法属于有级调速，根据工作需要设定好频率值，将多功能端子S设置为相应的频率即可，我们只需要通过接通端子完成，比如设置S3是30Hz，S4是35Hz，S5是40Hz，S3端子通则变频器以30Hz频率运行，S5端子通则以40Hz运行。

3、模拟量控制

这是常用的变频器控制方法，通过模拟量信号来控制变频器，一般控制信号与变频器输出频率是一个比例关系，我们将变频器设置为50.00Hz，那个控制信号0~10v对应的频率就是0~50.00Hz，我们想要输出20.00Hz就应该把模拟量信号调到4v，输出30则调到6v。

那么这个模拟量由什么产生呢，一般有外接电位器(与本机电位器原理一样)和一些DA数字转模拟装置(PLC连接)，外接电位器一般是三个端子接口，两边端子接变频器的10v和GND或者外接10V直流电源，中间的就是输出电压信号接AI2端子(注意需要同源)。而DA模块一般和PLC连接通过数字的方式控制，就是说直接给PLC一个30.00Hz的信号，通过DA模块转换成模拟量控制。

6ES7321-1BH10-0AA0 

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6ES7321-1BH10-0AA0