【正文】 ......................................12 開關(guān)量 I/O 模塊 .................................................................................................................14 輸入模塊 .....................................................................................................................14 輸出模塊 .....................................................................................................................15 可編程序控制器的工作原理 .............................................................................................15 可編程序控制器的工作原理 .....................................................................................16 掃描周期 .....................................................................................................................16 PLC 的 選 型 ..................................................................................................................17 輸入輸出（ I/O）點(diǎn)數(shù)的估算 ...................................................................................17 存儲(chǔ)器容量的估算 .....................................................................................................18 控制功能的選擇 .........................................................................................................18 機(jī)型的選擇 .................................................................................................................19 FX2N 可 編 程 序 控 制 器 簡 介 ....................................................................................21 PLC 控 制 程 序 設(shè) 計(jì) ...................................................................................................21 PLC 控制系統(tǒng)的設(shè)計(jì)基本原則 ................................................................................21 PLC 編程步驟 ............................................................................................................21成都電子機(jī)械高等專科學(xué)校 畢業(yè)設(shè)計(jì)（論文）2 PLC 提供的編程語言 ................................................................................................21第三章 電梯的發(fā)展、分類、規(guī)格參數(shù)及組成 ............................................................................23 概 述 ................................................................................................................................23 電梯產(chǎn)品的錄屬關(guān)系和在人民物質(zhì)生活中的作用 .................................................23 電梯產(chǎn)品發(fā)展簡史 .....................................................................................................23 電梯的運(yùn)行工作情況 .................................................................................................23 電 梯 的 分 類 ..................................................................................................................25 按用途分類 .................................................................................................................25 按速度分類 .................................................................................................................25 按曳引電動(dòng)機(jī)的供電電源分類 .................................................................................25 按有、無蝸輪減速器分類 .........................................................................................26 按驅(qū)動(dòng)方式分類 .........................................................................................................26 按控制方式分類 .........................................................................................................26 按拖動(dòng)方式分類 .........................................................................................................26 電梯的主要參數(shù)及規(guī)格尺寸 .............................................................................................26 電梯的主要參數(shù) .........................................................................................................26 我國有關(guān)標(biāo)準(zhǔn)對(duì)電梯主要參數(shù)和規(guī)格尺寸的規(guī)定 .................................................27 電梯的組成部件 .................................................................................................................27第四章 電梯的電氣控制系統(tǒng) ........................................................................................................30 概述 .....................................................................................................................................30 電梯電氣控制系統(tǒng)中的主要電器部件 .............................................................................30 電梯自動(dòng)控制系統(tǒng)中的各主要控制環(huán)節(jié)及結(jié)構(gòu)原理 .....................................................33 各類電梯安全可靠運(yùn)行的充分與必要條件 .............................................................33 電梯自動(dòng)開關(guān)門的控制環(huán)節(jié) .....................................................................................33 電梯的方向控制環(huán)節(jié) .................................................................................................34 發(fā)生制動(dòng)減速信號(hào)的控制環(huán)節(jié) .................................................................................38 主驅(qū)動(dòng)控制環(huán)節(jié) .........................................................................................................40 電梯的安全保護(hù)環(huán)節(jié) .................................................................................................40 電梯的內(nèi)外召喚指令的登記與消除 .................................................................................43 召喚指令信號(hào)登記記憶線路的原理說明 .................................................................44 轎內(nèi)信號(hào)的登記、記憶與消除 .................................................................................45 層外召喚信號(hào)的登記記憶與消除 .............................................................................46 電梯的信號(hào)指示系統(tǒng) .........................................................................................................47 數(shù)碼顯示的層樓指示燈 .............................................................................................47 運(yùn)行方向燈、轎內(nèi)指令及廳外召喚信號(hào)燈 .............................................................47 超載信號(hào)指示燈及音響 .............................................................................................48 電梯的消防控制系統(tǒng) .........................................................................................................49 電梯控制系統(tǒng)中適應(yīng)消防控制的幾個(gè)基本要求 .....................................................49 消防