三菱PLC控制的四層電梯畢業設計論文

電氣自動化論文編號:ZD027         字數:13240,頁數:42  

目    錄
目    錄 .........................................................2
引言 .............................................................4
第一章電梯控制系統的組成 .........................................5
1.1電力拖動...................................................... 5
1.2電氣控制 ......................................................5
第二章  電梯PLC 控制系統的基本結構............................... 6
2.1  樓層狀態指示設計 ............................................7
2．2電梯下行程序設計............................................. 8
2．3電梯上行程序設計..............................................9
2．4電梯到達時程序設計 ...........................................9
第三章系統設計 .................................................10
3.1 PLC輸入信號的確定方法 .......................................11
3.2 PLC輸出信號的確定方法........................................12
第4章  電梯模型PLC控制系統設計 ..................................17
4.1電梯的控制要求................................................17
4.2PLC控制系統的設計分析 ........................................17
4.3電梯模型PLC控制系統設計 ......................................18
4.4 PLC的選擇 ...................................................19
4.5 I/O分配表................................................... 20
4.6硬線接線圖 ...................................................21
4.7 PLC程序梯形圖 ...............................................22
第五章  電梯PLC的調試與安裝......................................25
5.1模擬調試 .....................................................25
5.2.1單指令運行調試 .............................................26
5.2.2復雜運行調試................................................26
結束語 ..........................................................27
致謝 ............................................................28
參考文獻........................................................ 28
附錄:完整程序語句表 .............................................29

摘 要: 隨著科學技術的發展、近年來，我國的電梯生產技術得到了迅速發展．一些電梯廠也在不斷改進設計、修改工藝。更新換代生產更新型的電梯，電梯主要分為機械系統與控制系統兩大部份，隨著自動控制理論與微電子技術的發展，電梯的拖動方式與控制手段均發生了很大的變化，交流調速是當前電梯拖動的主要發展方向。目前電梯控制系統主要有三種控制方式：繼電路控制系統(“早期安裝的電梯多位繼電器控制系統)、PLC控制系統、微機控制系統。繼電器控制系統由于故障率高、可靠性差、控制方式不靈活以及消耗功率大等缺點，目前已逐漸被淘汰。微機控制系統雖在智能控制方面有較強的功能，但也存在抗擾性差，系統設計復雜，一般維修人員難以掌握其維修技術等缺陷。而PLC控制系統由于運行可靠性高，使用維修方便，抗干擾性強,設計和調試周期較短等優點，倍受人們重視等優點，已成為目前在電梯控制系統中使用最多的控制方式，目前也廣泛用于傳統繼電器控制系統的技術改造。
關鍵詞:PLC 電梯  可控式編程器

Abstract：Along with science's and technology's development, the recent years, our country's elevator production technology obtained the rapidly expand. Some elevator factory unceasingly is also improving the design, the revision craft. The renewal production renewal's elevator, the elevator mainly divides into the mechanical system and the control system two major parts, along with the automatic control theory and microelectronic technology's development, elevator's dragging way and the control method has had the very big change, the exchange velocity modulation is the current elevator dragging main development direction. At present the lift control system mainly has three control modes: Following electric circuit control system (“early installment elevator many black-white control system), PLC control system, microcomputer control system. Because the black-white control system the failure rate is high, the reliability is bad, control mode not nimble as well as consumed power big and so on shortcomings, at present has been eliminated gradually.
Keywords: PLC elevator controllable -like programmer