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1、word格式文档摘要随着科学技术的发展近年来,我国的电梯生产技术得到了迅速发展.一些电梯厂也在不断改进设计、修改工艺。更新换代生产更新型的电梯,电梯主要分为机械系统与控制系统两大部份,随着自动控制理论与微电子技术的发展,电梯的拖动方式与控制手段均发生了很大的变化,交流调速是当前电梯拖动的主要发展方向。目前电梯控制系统主要有三种控制方式:继电路控制系统(“早期安装的电梯多位继电器控制系统)、PLC控制系统、微机控制系统。继电器控制系统由于故障率高、可靠性差、控制方式不灵活以及消耗功率大等缺点,目前已逐渐被淘汰。微机控制系统虽在智能控制方面有较强的功能,但也存在抗扰性差,系统设计复
2、杂,一般维修人员难以掌握其维修技术等缺陷。而PLC控制系统由于运行可靠性高,使用维修方便,抗干扰性强,设计和调试周期较短等优点,倍受人们重视等优点,已成为目前在电梯控制系统中使用最多的控制方式,目前也广泛用于传统继电器控制系统的技术改造。关键词plc电梯控制系统电梯系统运行专业整理word格式文档AbstractAlongwithscience'sandtechnology'sdevelopment,therecentyears,ourcountry'selevatorproductiontechnologyobtainedtherapidlyexpand.Someelevat
3、orfactoryunceasinglyisalsoimprovingthedesign,therevisioncraft.Therenewalproductionrenewal'selevator,theelevatormainlydividesintothemechanicalsystemandthecontrolsystemtwomajorparts,alongwiththeautomaticcontroltheoryandmicroelectronictechnology'sdevelopment,elevator'sdraggingwayandthecontrolme
4、thodhashadtheverybigchange,theexchangevelocitymodulationisthecurrentelevatordraggingmaindevelopmentdirection.Atpresenttheliftcontrolsystemmainlyhasthreecontrolmodes:Followingelectriccircuitcontrolsystem(“earlyinstallmentelevatormanyblack-whitecontrolsystem),PLCcontrolsystem,microcomputercont
5、rolsystem.Becausetheblack-whitecontrolsystemthefailurerateishigh,thereliabilityisbad,controlmodenotnimbleaswellasconsumedpowerbigandsoonshortcomings,atpresenthasbeeneliminatedgradually.Althoughthemicrocomputercontrolsystemhasthestrongfunctionintheintelligentcontrolaspect,butalsohastheinterfe
6、rencerejectiontobebad,thesystemdesigniscomplex,generallytheservicemenmasterflawswithdifficultyandsoonitsservicetechnology.ButPLCcontrolsystem,becausemovesthereliabilitytobehigh,theuseserviceisconvenient,anti-jamming,thedesignandthedebuggingcycleisshortandsoonmerits,timeistakenseriouslythepeo
7、pleandsoonmerits,havebecomepresentusemostcontrolmodesintheliftcontrolsystem,atpresentalsowidelyuseinthetraditionblack-whitecontrolsystem'stechnologicaltransformations.KeyWords:theplcliftcontrolsystemelevatorsystemsoperationoverhaulsanddebugs专业整理wor