PLC控制交流变频调速控制系统在电梯中的应用

Application of AC Frequency Speed System Controlled by PLC in Elevator

以富士ＮＢ２－Ｐ９０ＰＬＣ控制安川６１６Ｇ５组成的控制系统为例，介绍了该系统在电梯中应用的硬件结构、ＰＬＣ和变频器通讯的相关程序设计及变频器的参数设置。突出了变频器在电梯中的控制特点，为变频器在电梯控制中的应用提供了实际经验。

The hardware construction of the elevator system based on 616G5 controlled by NB2-P90 PLC, the program design of communication between PLC and frequency converter and the parameter setting of frequency converter are presented in the paper. The control characteristics of frequency converter in the elevator system are pointed out,and supply the actual expersences to the application of frequency converter in the elevator control.