PLC在断电延时型Y-△降压启动带直流能耗制动控制线路的改造

目录

一 引言·················································1

二 文章摘要·············································1

三 关键词字·············································1

四 PLC的概述述··········································4

五 断电延时带直流能耗制动的星三角降压启动控制线路·······7

 六 输入／输出I/0分配表和接线图 ·························8

 七 梯形图设计···········································9

 八 指令表···············································10

 九 总结·················································10

 十 致谢·················································11

 参考文献················································12