全自动洗衣机的PLC控制系统设计

西安建筑科技大学毕业设计（论文）全自动洗衣机的PLC控制系统设计姓名学号专业机电一体化层次指导教师2012年10月全自动洗衣机的PLC控制系统设计1摘要随着科学技术不断进步和社会飞速发展，洗衣机成为人民日常生活息息相关的家用电器产品。而从全自动洗衣机诞生以来，洗衣机的全自动化、多功能化、智能化是其发展方向。其内部的电路控制系统就不断的被改进。设计方法也开始多种多样，从而使全自动洗衣机显得更加智能化。基于全自动洗衣机的应用日益广泛，本次设计利用三菱公司生产的PLC控制全自动洗衣机，与传统的继电器逻辑控制系统相比较，可编程控制器(PLC)以微处理器为核心，普遍采用依据继电接触器控制系统电气原理图编制的梯形图语言进行程序设计，编程容易，功能扩展方便，修改灵活，而且结构简单，抗干扰能力强。三菱FX2N系列可编程控制器指令丰富，可以接各种输出、输入扩充设备，有丰富的特殊扩展设备，其中的模拟输入设备和通信设备更是符合全自动洗衣机控制系统的要求与特点。本文选择三菱FX2N-32MR为核心部件，着重进行硬件接口设计，利用梯形图和语句表进行编程，实现了全自动洗衣机控制系统的自动化，同时根据全自动洗衣机控制系统总体控制要求和特点,确定PLC的输入输出分配。本文还介绍了衣机的PLC控制系统，全自动洗衣机的基本结构和硬件设计，重点介绍了关于三菱系统的全自动洗衣机PLC的设计。为方便读者更快地了解,熟悉本设计,作为基础知识,还介绍了有关的PLC的基本结构和工作原理等，使全自动洗衣机能更加智能化,更加完善。关键词：PLC；电气控制；自动化；全自动洗衣机全自动洗衣机的PLC控制系统设计2AbstractWiththedevelopmentofscienceandtechnologyandtherapiddevelopmentofsociety,washingmachinebecamethepeople'severydaylife,householdappliancesproducts.Fromtheinceptionofautomaticwashingmachine,washingmachinefullautomation,multi-functional,intelligentisitsdevelopmentdirection.Theinternalcircuitcontrolsystemisconstantlybeingimproved.Designbegantodiversity,sothattheautomaticwashingmachineismoreintelligent.Basedonthefullautomaticwashingmachineismoreandmorewidelyused,thedesignoftheMitsubishiCoproductionofthePLCcontrolisfullautomaticwashingmachine,andthetraditionalrelaylogiccontrolsystem,programmablelogiccontroller(PLC)tothemicroprocessorasthecore,generallyadoptedaccordingtotherelaycontactorcontrolsystemelectricalschematicdiagramoftheladderdiagramlanguageprogramdesign,programmingeasy,convenientfunctionexpansion,modifyandflexible,andhastheadvantagesofsimplestructure,strongantiinterferencecapability.MitsubishiFX2Nseriesprogrammablecontrollersinstructionisrich,canmeetallkindsofinputoutput,expansiondevice,hastherichspecialexpansiondevice,whereintheanaloginputdevicesandcommunicationsequipmentisconsistentwithfullautomaticwashingmachinecontrolsystemrequirementsandcharacteristics.ThispaperchoosetheMitsubishiFX2N-32MRascorepart,focusedonthedesignofhardwareinterface,usingtheladderdiagramandsentencestoprogramming,realizethefullautomaticwashingmachinecontrolsystemautomation,atthesametimeaccordingtotheautomaticwashingmachinecontrolsystemgeneralcontrolrequirementsandcharacteristics,determinedthePLCinputandoutputdistribution.ThispaperalsointroducesthesewingmachinePLCcontrolsystem,fullautomaticwashingmachineandbasicstructureofhardwaredesign,focusingonMitsubishisystemforfullyautomaticwashingmachinePLCdesign.Fortheconvenienceofthereadertoquicklyknow,familiarwiththedesign,asthebasicknowledge,alsointroducedthePLCbasicstructureandworkingprincipleoftheautomaticwashingmachine,moreintelligent,moreperfect.Keywords:PLC;electricalcontrol;automation;fullautomaticwashingmachine全自动洗衣机的PLC控制系统设计3目录第1章绪论..................................................................................................................................................41.1课题的研究背景..............................................................................................................................41.2洗衣机发展概况和现状..................................................................................................................41.3课题研究的目的与意义................................................................................................................51.4本课题研究的主要内容................................................................................................................6第2章全自动洗衣机的系统结构和基本工作原理....................................................................................72.1系统结构........................................................................................................................................72.2基本工作原理...................................................................................................................................82.3全自动洗衣机控制面板及控制系统..............................................................................................92.4洗涤脱水系统................................................................................................................................102.5排水和进水系统.............................................................................................................................102.6电动机及传动系统.........................................................................................................................10第3章可编程控制器及全自动洗衣机PLC控制系统.............................................................................123.1可编程控制器的基本概念及工作原理.........................................................................................123.1.1PLC概述.....................................................................................................................................123.1.2PLC的工作原理.......................................................................................................................123.2全自动洗衣机的PLC控制系统.....................................................................................................143.2.1控制系统的比较...........................................................................................................