可编程控制器和变频器在改造在用电梯自动控制系统中的应用

The Application of the Programmable Logic Controller and the Variable Frequency Device in Old Used Elevator Controller Systems

介绍采用三菱FX2系列可编程控制器(PLC)和FR-V240E系列变频器改造老式电梯控制系统的系统构成、应用技术以及设计方法.

In this paper ,we give a new elevator control system with the FX2 programmable logic controller and FR-V240E variable frequency device . The system constitution, applied technique, anddesign procedures are discussed in detail.