气动打包机电气控制系统设计
摘要:打包机是一种动作步骤复杂的机床设备，在打包机控制系统中应用可编程序控制器能简化系统的设计并提高系统的工作效率和可靠性。在这篇文章中以化纤打包机的控制系统为例。首先介绍了三菱FX2N的特性特点、程序设计方法和编程方法，程序设计方法和编程方法包括经验设计法、顺序控制设计法和STL（Step Ladder Instruction）步进梯形指令，然后详细具体地分析和介绍了化纤打包机控制系统的组成、电气特征和程序。最后介绍了应用个人计算机来向可编程序控制器中输入程序。所使用的软件是三菱公司的SWOPC—FXGP/WIN—C。
关键字：打包机；可编程序控制器；步进梯形指令；个人计算机
1引言··························································19
2气动部分······················································19
2.1气动系统设计方案········································19
2.1.1气动原件的优缺点··································19
2.1.2气动执行元件······································20
2.1.3气动控制元件······································20
3电气部分······················································22
3.1梯形图的经验设计法·····································22
3.2顺序控制设计法·········································23
3.3 关于PLC···············································24
3.3.1 基本结构 ········································24
3.3.2 工作原理 ········································24
3.4 功能特点···············································25
3.5FX2N系列PLC性能程序设计和编程方法······················25
3.5.三菱FX2N系列可编程控制器性能特····················25
3.6 STL指令的编程方式简介··································26
4电路设计······················································28
4.1 PLC输入输出分配表······································29
4.2PLC电路接线图···········································29
4.3程序梯形图··············································30
4.3.1梯形图主程序······································30
4.3.2各子程序及解释····································31
5打包机控制系统仿真············································33
5.1触摸屏简介··············································33
5.2现场触摸屏控制设计······································33
5.3向PLC中输入程序的过程··································33
6结束语························································36
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