PLC在直流电动机双闭环调速系统中的应用

Application of PLC in double closed-loop adjusting speed system of direct current motor

设计选用日本三菱公司 FX2-16MR 基本单元和 FX-4AD,FX-2DA 模拟量输入/输出扩展模块,并利用其功能指令设计的直流电动机双闭环调速系统,实现了调速过程速度快、精度高,控制系统的参数便于调试和高工作可靠性,通过给定的调速系统硬件配置和梯形图,经模拟调试输出信号验证了各项指标均满足调速系统的要求。

The double closed-loop adjusting speed system of direct current motor uses the FX2-16MR basic unit of Japanese Mitsubishi company and FX-4ADs, FX-2DA emulation input/ output expanding mold , making use of its function instruction. It realizes fast adjust mend of the speed course , high precision, which make it easy to debug control procedure and work reliable, which is a development direction in the industrial control. Hardware disposition and ladder chart are given in this text. It can be adjusted by emulation and various index signs of output signal all satisfy the requirements of the adjust system.