文档介绍：该【五台电动机顺序控制系统设计】是由【青山代下】上传分享，文档一共【12】页，该文档可以免费在线阅读，需要了解更多关于【五台电动机顺序控制系统设计】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。:..内容摘要这次以“五台三相笼型异步电动机顺序控制系统设计为题目的课程设计方案基本满足控制要求,可以实现五台点送机按要求动作的控制。其中主程序用到了我已经学到的指令语句,比如:时钟指令,设定实时时钟指令,,,它主要使用了定时器,触点和输出线圈,:逻辑控制;时钟;定时1:..目录第1章引言··············································································································································································································································································································································································································································1第2章系统总体方案分析与设计···················································································································································································12。2控制要求·········································································································22。3方案分析··········································································································22。4方案设计·········································································································22。5元器清单·········································································································2第3章PLC控制系统设计··················································································································································································································································································································23。1。2确定I/O点数量及PLC类型····························································································33。2I/O点的分配与编号·························································································33。3PLC端子接线图································································································33。4控制程序编制··································································································33。4。1梯形图(见附表)···············································································································33。(见附表)··················································································································3结论····························································································································3设计总结···················································································································5致谢····························································································································6附录梯形图及指令表····························································································7参考文献··················································································································211:..第1章引言1。1设计内容五台三相笼型异步电动机顺序控制系统设计。1。2设计要求1、有五台电动机作顺序循环控制,控制时序如下图所示:、系统可以自动循环。3、每台电动机可以单独启停控制。1。3设计思路根据控制要求,要实现五台电动机的循环控制,每台电动机还可以独自启动和停止。通过反复思考之后,决定用多个时间继电器和中间继电器来控制五个交流接触器来协调动作,然后有每个交流接触器直接控制电动作满足要求的的动作,问题的关键在于如何设计合理的控制电路以保障时间继电器在合适的时间动作。从上图可以看出,每隔20秒都会有电动机的启动和停止动作,可以在每个动作之初让时间继电器开始工作,控制与之相应的中间继电器工作,中间继电器让该停下的电动机断电,让该启动的电动机得电。同时时间继电器的延时触点作为下一个动作的中间继电器的启动按钮,等到下一个动作开始时,与之相应的中间继电器先将上一中间继电器断电,然后启动相应的该工作的电机。第2章系统总体方案分析与设计2。:..2。2控制要求1、有五台电动机作顺序循环控制,控制时序如下图所示:一号电机ONONONON二号电机ONONON0N三号电机ONONONONONON四号电机ONON0NONON0N五号电机ONON0NON秒010203040506070802、系统可以自动循环。3、每台电动机可以单独启停控制。,利用西门子公司的S7-200可编程逻辑控制器对电动机进行控制。本系统具有一定的智能性,即它可以让五台电动机按要求自动循环运行。,要实现五台电动机的循环控制,每台电动机还可以独自启动和停止。用多个时间继电器和中间继电器来控制五个交流接触器来协调动作,然后有每个交流接触器直接控制电动作满足要求的的动作,问题的关键在于如何设计合理的控制电路以保障时间继电器在合适的时间动作。系统的继电接触器控制线路图如下:图2。1继电器接触器主电路图图2。:型号CPU224AC,12个按钮,2组熔断器,5个热继电器,4个中间继电器,5个交流接触器,4个时间继电器。。1。1主电路设计2:..主电路主要采用比较指令判断时间的范围,近而调用子程序,从而实现控制要求。3。1。2确定I/O点数量及PLC类型分析PLC的输入和输出信号,在满足控制要求的前提下,要尽量减少占用PLC的I/,由控制开关输入的启、停信号是输入信号。由PLC的输出信号控制各电机的启动,:该系统需要12个输入新号,5个输出信号,选用CPU224AC,内部电源供电,继电器输出形式。3。2I/O点的分配与编号表3-1系统I//O表及PLC的配置图很容易全部停止按钮I0。1SB12就可以得到PLC端子接线图3—:二号电机启动I0。3SB2图3-。。。7SB7(见附表)。1SB9指令表四号电机停止I1。2SB10(见附表)五号电机停止I1。,输出信号三号电机驱动Q0。。五号电机驱动Q0。5KM53:..4:..设计总结通过两周的课程设计,学到的很多东西,最主要的就是在学完了机电传动与控制这门课程之后,通过这次的课程设计让我将理论知识和实践做了一次完整的融合,短短的几天时间里收获了很多东西,感到十分充实!虽然在老师的辛勤带领下,和同组同学的相互帮助下完成了自己的课程设计,但是由于是初次做plc方面的控制,难免会有一些缺陷,比如有好多的紧急情况的处理没有考虑到位,:..致谢在这短短几天的课程设计过程中,我首先要感谢敬爱的王老师,王老师严谨的工作态度让同学们万分钦佩,在您的详细认真的指导下,同学们才能顺利完成课程设计。小小的一个课程设计让我深刻体会到了合作的重要性,要是没有同组同学的相互探讨,相互帮组就不可能有最后满意的结果。6:..附录梯形图及指令表梯型图:指令表TITLE=五台电动机顺序控制Network1//循环启动LDI0。0ANT32OM0。1OT35ANI0。=M0。1Network2//M1的起停控制LDM0。1OM0。。2ANI0。7ANT32ANT34ANM0。5=//M2的起停控制LDI0。3OT34OQ0。2OT32ANT33ANI1。=//。:..=Q0。3Network5//。4OT33OT34OI0。=//M5的起停控制LDT32OQ0。5OI0。=//。5TONT32,20000Network8//启动定时器2LDM0。2OT33ANM0。5ANT34TONT33,2000Network9//:..TONT34,2000Network10LDM0。3OM0。3ANT35ANT35TONT34,2000Network11//启动定时器4LDM0。,=。3ANT35ANM0。5=M0。。5=//全部停止LDI0。。0=[1]:国防工业出版社,2006[2]廖常初。:***出版社,20059:..[3]高钦和。:高等教育出版社,2004[4]李缓。PLC原理与应用。北京:北京邮电大学出版社,2005[5]林明星。电气控制及可编程序控制器[M].北京:***出版社,2004[6]周淑珍、高鸿斌。:电子工业出版社,2004[7]王玉中。电气控制及PLC应用技术。河南:河南***,2006[8]。济源:济源职业技术学院出版社,200610