【正文】 .............................................................................................................4 電梯的發(fā)展 ..........................................................................................................4 電梯的應(yīng)用 ..........................................................................................................5 電梯的發(fā)展方向 ..................................................................................................5 電梯的分類 ..........................................................................................................6 電梯的基本結(jié)構(gòu) ........................................................................................................73 總體設(shè)計 .........................................................................................................................9 設(shè)計要求 ....................................................................................................................9 標(biāo)準(zhǔn)功能 ..............................................................................................................9 特別功能 ............................................................................................................10 設(shè)計方案 ..................................................................................................................11 電梯系統(tǒng)主要參數(shù)的選擇 ................................................................................11 電機(jī)的選擇 ........................................................................................................11 PLC 的選擇 ........................................................................................................11 調(diào)速方式的選擇 .................................................................................................11 變頻器的選擇 ....................................................................................................124 可編程控制器 ...............................................................................................................13 概述 ...........................................................................................................................13 可編程控制器的發(fā)展 ........................................................................................13 PLC 的主要性能指標(biāo) ........................................................................................13 PLC 的分類 ........................................................................................................14 PLC 的特點 ........................................................................................................14 PLC 的功能 ........................................................................................................15 PLC 的工作流程 ................................................................................................16 PLC 與其他自動控制系統(tǒng)比較 ........................................................................17 西門子 S7200 PLC .................................................................................................18 硬件系統(tǒng) ............................................................................................................18 通信與網(wǎng)絡(luò) ........................................................................................................185 電梯調(diào)速系統(tǒng) ...............................................................................................................20 概述 ..........................................................................................................................20 變頻器 ......................................................................................................................20 變頻器的形式與結(jié)構(gòu) ........................................................................................20基于 PLC 的電梯控制器設(shè)計 2 西門子 MICROMASTER440 型通用變頻器 ..................................................226 詳細(xì)設(shè)計 .......................................................................................................................24 硬件 設(shè)計 ..................................................................................................................24 軟件設(shè)計 ..................................................................................................................27結(jié)論 .....................................................................................................................................37謝辭 .....................................................................................................................................38參考文獻(xiàn) .............................................................................................................................39基于 PLC 的電梯控制器設(shè)計 0 基于 PLC 的電梯控制器設(shè)計摘要：本文介紹了一種基于可編程控制器(PLC)的電梯控制方法。作者對電梯控制系統(tǒng)的現(xiàn)狀作了分析，根據(jù)國家有關(guān)標(biāo)準(zhǔn)選擇系統(tǒng)硬件，利用現(xiàn)代控制技術(shù)改進(jìn)了傳統(tǒng)的電梯控制方法。本文所述控制系統(tǒng)用軟件代替部分硬件功能，適當(dāng)?shù)臏p少了輸入和輸出點數(shù)，降低了系統(tǒng)成本，提高了系統(tǒng)的可靠性和安全性。設(shè)計了主電路與關(guān)鍵的控制電路原理圖，并給出主要軟件的流程圖和部分程序代碼?；?PLC 的電梯控制器設(shè)計 1 Design of PLCbased elevator controllerAbstract: A method of elevator control based on programmable logical controller (PLC) is introduced in this paper. The present situation of elevator control system is analyzed in the first, the system hardware is chosen according to the relevant national standards, the traditional control methods are improved by modern control technology. In the method based on the principles of electrical control assembly election, PLC and variable frequency transducer are used as main controller and regulator respectively to control the controlled object of the alternative current induction motors, the pulse encoder is used to replace the traditional position detect devices to achieve the position feedback, the munication between PLC and transducer is adopted to start and stop the motors and regulate the speed. A part of hardware39。 Transducer。 PLC基于 PLC 的電梯控制器設(shè)計 2 1 引言在現(xiàn)代復(fù)雜的樓宇建筑中，電梯成為不可或缺的運輸工具，其使用越來越廣泛。電梯控制系統(tǒng)目前多采用兩種方式：一是 PLC 加變頻器控制系統(tǒng)，二是微機(jī)加變頻器控制系統(tǒng)。PLC