摘要
以垂直气电焊循环冷却水恒压控制为例,论述应用西门子LOGOF可编程继电器和变频器实现冷却水恒压闭环控制的方法。阐明了该冷却水恒压闭环控制系统优越性,给出了系统框图及可编程继电器程序。
This paper is exampled for the circulation cooling water control,treats a new approach for application Siemens LOGO! programmable relay and inventor implement closed-loop control.illustrate the advantage of closed-loop control system for cooling water,and provides the systemic chart and procedure.
出处
《工业控制计算机》
2008年第7期80-81,共2页
Industrial Control Computer
关键词
可编程继电器
变频器
垂直气电焊
programmable relay,inventor,plumb electric welding
