基于自由口通信的变频器控制系统设计  

Inverter Control System Based on Free Communication Port

作　　者：关玉明[1] 王志锋[1] 王鹏飞[1] 

机构地区：[1]河北工业大学机械工程学院,天津300130

出　　处：《电机与控制应用》2009年第2期1-2,6,共3页Electric machines & control application

基　　金：国家自然基金资助项目(50675058)

摘　　要：主要介绍了利用艾默生系列可编程逻辑控制器(PLC)的RS-485接口与EV2000变频器进行自由口通信控制的实现方法,列举了通信所需的关键参数设置,并给出了通信例程。该方法可方便地实现变频器在线自动调控,并已成功应用于纸管机生产线。The control method using the free communication port between Emerson＇ s PLC and EV2000 frequency-converter is described. The parameter is enumerated , which is indispensable for communication. The program is presented too. This method which has been successfully applied to the machine of paper tube, is very convenient to control the frequency-converter in line.

关 键 词：自由口通信 变频器 可编程逻辑控制器 

分 类 号：TM921.51[电气工程—电力电子与电力传动]