【摘要】 介绍了PLC控制变频器的通讯方法和硬件安装,说明了变频器各种参数之间的配合和使用技巧,阐述了变频器多功能端子的含义、使用及操作步骤。在此基础上,运用三菱PLC技术,完成了PLC控制变频器7段速的编程方法和接线方法的设计。实验结果表明,交流电动机的运行速度变化和所设计的7段转速原理图一致。更多还原

【Abstract】 Introduced PLC control frequency converter communication methods and installed hardware,explains the inverter various parameters between the coordination and use skill,this paper expounds the meaning of inverter multi-function terminals,use and operation procedure,on this basis,using mitsubishi PLC technology,completed the PLC control inverter seven section speed programming method,and wiring method of design.Experimental results show that the AC motor speed change and the design of seven section speed diagram consistent.更多还原