基于PLC步进电机控制系统的设计.doc

摘要基于plc步进电机控制系统的设计[摘要]本文所要控制的电机为五相步进电机，采用可编程控制器对其控制，对设计原理及方法分析总结。步进电动机优点有快速起停、定位和精确步进等，日常的生产和生活中比较普遍，控制精度高。在工业过程控制和仪器仪表控制方面，应用的很广泛。本文还介绍的PLC控制系统，其包括硬件结构还有原理以及PLC控制系统设计的原则方法。以五相电机控制为例，阐述了西门子PLC在电机控制中的运用。其基本原理、硬件准备和软件的设计，在文中都有体现。采用的细分驱动方法，可以达到极高的精度并提高稳定性，有利于电机运行品质、转矩波动的改善。本文内容包含PIC外部接线图、I/O地址分配、控制流程图、驱动电路选择、细分驱动分析、梯形图等，并且上位机监控界面是运用组态王软件编写。[关键词]：S7-200；五相步进电机；梯形图；细分驱动；组态王DesignofSteppingMotorControlSystemBasedonPLC[Abstract]Themotorcontrolledinthispaperisafivephasesteppermotor.Itiscontrolledbyaprogrammablecontroller.Thedesignprincipleandmethodareanalyzedandsummarized.Steppingmotorhastheadvantagesoffaststartstop,positioningandaccuratestepping,etc.,andthedailyproductionandlifearemorecommon,andthecontrolaccuracyishigh.Itiswidelyusedinindustrialprocesscontrolandinstrumentcontrol.PLCcontrolsystemisintroduced,includinghardwarestructureandprinciple,andtheprincipleandmethodofPLCcontrolsystemdesign.Takingfivephasemotorcontrolasanexample,theapplicationofSIEMENSPLCinmotorcontrolisexpounded.Itsbasicprinciple,hardwarepreparationandsoftwaredesignareembodiedinthisarticle.Thesubdivisiondrivemethodcanachievehighaccuracyandstability,andisfavorableformotorqualityandtorquefluctuation.ThecontentsofthispaperincludePICexternalwiringdiagram,I/Oaddressallocation,controlflowchart,drivecircuitselection,subdivisiondriveanalysis,ladderdiagramandsoon,andtheuppercomputermonitoringinterfaceiswrittenbyKingviewsoftware.[Keywords]S7-200;Five-phasesteppingmotor;Ladderdiagram;Subdivisiondrive;Configurationking目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc485404856"1引言PAGEREF_Toc485404856\h1HYPERLINK\l"_Toc485404857"1.1步进电机的介绍PAGEREF_Toc485404857\h1HYPERLINK\l"_Toc485404858"1.2步进电机的分类PAGEREF_Toc485404858\h1HYPERLINK\l"_Toc485404859"1.3步进电机的应用PAGEREF_Toc485404859\h2HYPERLINK\l"_Toc485404860"1.4步进电机的各种控制及比较PAGEREF_Toc485404860\h2HYPERLINK\l"_Toc485404861"1.4.1环形分配器步进电机控制系统PAGEREF_Toc485404861\h2HYPERLINK\l"_Toc485404862"1.4.2单片机步进电机控制系统PAGEREF_Toc485404862\h3HYPERLINK\l"_Toc4