PLC控制變頻調速五層電梯系統(tǒng)設計

電氣自動化論文編號:ZD024         字數(shù):17380,頁數(shù):51  

�牐犇� 錄
�牐犝�要...................................................................Ⅰ
�牐� ABSTRACT..............................................................Ⅱ
�牐� 1 緒論.................................................................1
�牐� 1.1 國內外電梯的研究現(xiàn)狀...............................................1
�牐� 1.2 本次設計的目的和意義..............................................12
�牐� 2 系統(tǒng)的方案分析與論證................................................13
�牐� 2.1 電梯的控制要求....................................................13
�牐� 2.2 系統(tǒng)的方案分析....................................................13
�牐� 2.3 設計的步驟........................................................15
�牐� 2.4 電梯控制系統(tǒng)的組成................................................16
�牐� 2.5電梯的工作狀態(tài).....................................................17
�牐�3 變頻器的設計.........................................................19
�牐� 3.1 變頻器的選擇......................................................19
�牐� 3.2 變頻調速電梯的主電路..............................................20
�牐�4 七段數(shù)碼顯示電路的設計...............................................22
�牐�5主電路的設計..........................................................24
�牐� 5.1主電路設備的選擇...................................................24
�牐� 5.2拖動電機主電路的設計...............................................25
�牐� 5.3 門電機主電路的設計................................................26
�牐� 6 可編程控制器的設計..................................................32
�牐� 6.1 PLC的選型.........................................................32
�牐� 6.2 可編程控制器的硬件設計............................................33
�牐� 6.3 可編程控制器的軟件設計............................................37
�牐� 7 保護功能設置........................................................44
�牐� 7.1 超速保護裝置......................................................44
�牐� 7.２轎廂超越上下極限位置，電梯制動裝置................................45
�牐� 7.３撞底緩沖裝置......................................................46
�牐� 7.4強迫換速裝置.......................................................46
�牐� 7.5無反饋保護.........................................................47
�牐� 7.6超差保護...........................................................47
�牐牻Y束語.................................................................48
�牐爡⒖嘉墨I...............................................................49
�牐犞轮x...................................................................50
�牐牳戒�...................................................................51

摘 要
�牐� PLC（可編程控制器）作為一種工業(yè)控制微型計算機，它以其編程方便、操作簡單尤其是它的高可靠性等優(yōu)點，在工業(yè)生產過程中得到了廣泛的應用。變頻技術的發(fā)展推動了PLC的應用。它應用大規(guī)模集成電路，微型機技術和通訊技術的發(fā)展成果，逐步形成了具有多種優(yōu)點和微型，中型，大型，超大型等各種規(guī)格的系列產品，應用于從繼電器控制系統(tǒng)到監(jiān)控計算機之間的許多控制領域。
�牐犽S著社會的不斷發(fā)展，樓房越來越高，而電梯成為了高層樓房的必須設備。電梯從手柄開關操縱電梯、按鈕控制電梯發(fā)展到了現(xiàn)在的群控電梯，為高層運輸做出了不可磨滅的貢獻。
�牐� PLC在電梯控制上的應用主要體現(xiàn)在它的邏輯開關控制功能。由于PLC具有邏輯運算，計數(shù)和定時以及數(shù)據(jù)輸入輸出的功能。在電梯控制過程中，各種邏輯開關控制與PLC很好的結合，很好的實現(xiàn)了對電梯的控制。
�牐牨疚闹饕�討論研究利用三菱公司的可編程控制器對五層電梯的控制，形成電梯控制系統(tǒng)。
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�牐犼P鍵詞： 電梯；PLC；五層 變頻器；
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�牐燗BSTRACT
�牐� PLC (Programmable Logical Controller) took one kind most important, the application situation most industries control microcomputer, it is convenient, operation simple in particular by its programming merit and so on redundant reliability, obtained the widespread application in the industrial production process. It applies the large scale integrated circuit, the miniature machine technology and the communication technology development achievement, gradually formed had the many kinds of merits.
�牐� Along with society's unceasing development, the building is more and more high, but the elevator became the high level building to have the equipment. After humanity's more than centuries unremitting endeavors, the elevator already from the handle switch operation elevator, the push-button control elevator develops to the present group control elevator, has made the indelible contribution .
�牐� PLC in the control in the elevator the application mainly to manifest in its logical switch control function. This function enable PLC to have the logic operation, counts with fixed time as well as the data feeds output function. Rises and falls in the process in the elevator, each logical switch control and PLC very good union. This article main discussion studies using MITSUBISHI Corporation's PLC molding machine carries on the control to the 5-floor elevator fluctuation, forms the elevator control system
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�牐燢ey words: 5-floor , elevator; PLC;