基于FX系列PLC Y-△减压启动控制程序设计方法探究

Based on FX Series PLC Y-△ Reduced Voltage Starting Control Program Design Method Exploration

Y-△减压启动控制是三相异步电动机减压起动控制的方法之一,以该控制电路为研究对象,用三菱FX系列PLC替代传统的继电—接触器控制系统,通过基本逻辑指令、步进梯形图指令和功能指令三种方法对其进行程序设计,运行效果良好。

Y-△ reduced voltage starting control is one of the methods of reducing the three-phase asynchronous moto starting control.In the present paper, we take the control circuit as the research object, employ Mitsubishi FX series PLC instead of tradi-tional relay contactor control system , and use three methods such as the basic instruction and step-by-step instructions and applica-tion instructions to design program.The results demonstrate the running is good.