PLC控制变频器技术在桥式起重机改造中的应用

The Applications of the PLC Control Frequency Technology in General Bridge Crane

本文探讨了变频调速技术在通用桥式起重机中的应用,并且根据原有的控制结构,结合组态软件和PLC、变频器技术,提出了一个改进的系统控制结构,并且采用此体系结构实现了桥式起重机变频调速控制。

This paper discusses the applications of the frequency control technology in general bridge crane.Based on the original control structure of general bridge crane,an improved system control structure has been put forward with the combination of configuration software,PLC and inverter technology.This system control structure can achieve the frequency control of the bridge crane.