PLC控制变频器恒压供水系统设计.docx
PLC控制变频器恒压供水系统设计
目录
PLC控制变频器恒压供水系统设计(1).........................3
内容概述................................................3
1.1研究背景和目的.........................................3
1.2技术路线...............................................4
系统概述................................................4
2.1水泵工作原理...........................................5
2.2变频器工作原理.........................................6
2.3PLC的基本概念..........................................7
系统需求分析............................................8
3.1设计目标...............................................8
3.2安全性要求.............................................9
3.3经济性考虑............................................10
系统方案设计...........................................11
4.1需求分析与功能规划....................................11
4.2原理图绘制............................................12
4.3控制程序编写..........................................13
硬件选型与安装.........................................14
软件设计与编程.........................................14
6.1程序流程设计..........................................15
6.2数据通信协议设计......................................16
6.3编程语言选用..........................................18
系统调试与测试.........................................19
7.1系统联调..............................................20
7.2测试报告编制..........................................20
结论与建议.............................................21
8.1系统优点总结..........................................22
8.2可能存在的问题及解决策略..............................23PLC控制变频器恒压供水系统设计(2)........................24
内容概括...............................................24
系统需求分析...........................................24
2.1水泵性能要求..........................................25
2.2控制精度要求..........................................25
PLC控制系统设计........................................25
3.1PLC选型与硬件配置.....................................26
3.2I/O信号分配...........................................27
变频器选择与配置.......................................28
4.1变频器选型原则.......................................