外文翻译—基于PLC的感应电动机监控系统设计与实现英文版

1、Microcomponent Thickness Comprehensive Detecting Plain Test Control System DesigningZhenwei Duan Yanhua Li Denren Kong Changan DiDepartment of precision instrument of School of Mechanical Engineering in NUST, Nanjing, 210094 Phone (086) 025-84315471 E-Mail: willendzwAbstract: This article introduces the overall plan of the testing & controlling system of the platform for testing the thickness of the microcomponent, the working principle and the design method. It introduces the driving system, co

2、ntrolled by the PLC programmed controlling step-motor, to accomplish the testing of microcomponent in the form of production chain. It introduces the communication and control method between the thickness-testing sensor and PC. It discusses how can the PLC controlling microcomponent material distribution machine accomplishes distribution task, when getting sort signals form PC. It discusses the realization method, in which all kind of status in operating process can be tested and the fault can b

3、e tolerated. This system was debugged in industrial location and its feasibility was proved well.keywords: microcomponent， detecting，classification automatization， ManipulateMicrocomponent is a critical unit in air condition and air compressor, whose geometry dimension, surface roughness, margin tolerance etc deeply effects the refrigeration and calefaction of them. Actually as the demand of air condition and air compressor are more and more vast, the demand of microcomponent is more and more va

4、st too and the degree of accuracy of microcomponent is more and more higher. Now after the microcomponent was machininged and producted, which was mainly detected manually, the verification became where the shoe pinches. The traditional verification method has the problem of slow velocity, low efficiency and man induced factor effect. So we developed this Microcomponent Thickness Comprehensive Detecting Plain. The Programmable Logic Controller of S7-200 catena, which is made by the Siemens and t

5、he industrial control computer are the nucleus of this topic. We combination the deeply activation capability, the high reliability, the superior proportionaliny among the performance and the cost, the expedient application of The Programmable Logic Controller with the deeply data-processing capability, the amicable relation among man and computer, the high administration horizontal of the industrial control computer, then we develop this Microcomponent Thickness Comprehensive Detecting Plain Te

6、st Control System. We achieve the automatization of the examination of the microcomponent thickness and the exclusive classification process, and enhance the level of automatization, get together on better economic effect.I The design of the microcomponent thickness comprehensive detecting plainThe Microcomponent Thickness Comprehensive Detecting Plain is made up of the driving and measurement mechanics, the classification mechanics and the control section .In a general way, the concentrated and

7、 decentralized system can be fallen into three tiers: the top is management who manages the whole system; the middle is concentrated supervisory who monitor, control and deploy the whole system; the bottom is decentralized- implementation, whose task is control the local system. In the system, the industrial control computer undertakes the task belonging to the top and middle as supervisory management; PLC undertakes the bottom task as control implementation tier2. The industrial control compute

8、r transfers the management decision, control task, control parameter and deploy dictation to the control tier PLC by communication cable, PLC transfers the parameter, process control and data to the management tier by communication cable. The function flowchart of whole system is as fig 1.Sort control signal渐潭澶埃粪肭蒡蛹胶具Sensor signal纂盱骈馗俏哀厩咬磊学PTO output谷衫躔岱差辗壅颇睾慰Drive control氡礅雪汹垭勉剀熬蝾瓜Control signal妫珧品缡谈砌颥肯徜糗Measurement plain出拉谆玄航诈梦鞣裣靖PLC RS-485驰硎没狠霜稗陈范蜍膳Industry control computer碌羧炷桅丬湓搁渝钨蜴RS-232艴肄槲

9、晰硇骄鱿慕虽岙Sort control system涫貘绡莨朊场扣蛳郯郎PC/PPI掇蛲纷戊酱绨喃魍残搴Motor 1骀秀瓜辞艄攘柄达跆枷Mtor2岑式舍龙诡邛孀阂怵肷Status signal瘛挈守片酣番芦凹痉琐Status signal毅瘩湔霸萋疯掺颔床扫Fig 1 The overall structure of the systemA The automated detecting plainThe automated detecting plain is made up of measurement plain and the driving mechanism. Measurement plain is the basic reference of the microcomponent s geometrical parameter, whose degree of accuracy is higher than that of the microcomponent. During the measurement process, the microcomponent slides with surface of the operating board. In order to guarantee the stationarity during the driving process, and eschew to lead in the additive lapse to engender the deformation because of the shock of the driving mechanics, the driving mechanics exploits the designing of fission constitutional formula to disbranch the measurement plain and the driving mechanics, then descend the influence of the driving me

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