基于PLC控制步進(jìn)電機(jī)的設(shè)計(jì)與仿真

目 錄

摘    要 I
Abstract II
1.  概述 1
1.1  問題的提出 3
1.2  設(shè)計(jì)的目的及系統(tǒng)的功能 3
2.  步進(jìn)電機(jī)簡(jiǎn)介 4
2.1  步進(jìn)電機(jī)的原理分析 4
2.2  步進(jìn)電機(jī)的特性 4
2.3  本設(shè)計(jì)所用步進(jìn)電機(jī) 5
3. 系統(tǒng)設(shè)計(jì) 7
3.1  步進(jìn)電機(jī)的控制分析 7
3.2 系統(tǒng)設(shè)計(jì)圖 7
3.3  可編程控制器（PLC）的簡(jiǎn)介 8
3.3.1  PLC的特點(diǎn) 8
3.3.2  PLC的硬件結(jié)構(gòu) 8
3.3.3  機(jī)型的選擇 9
3.4  按鍵控制電路 11
3.5  步進(jìn)電動(dòng)機(jī)驅(qū)動(dòng)電路 13
3.6  顯示電路 18
3.7  步進(jìn)電機(jī)控制系統(tǒng)圖 20
4. 程序設(shè)計(jì) 21
4.1  PLC編程方案設(shè)計(jì) 21
4.2  梯形圖的編程 22
4.3  啟動(dòng)停止控制環(huán)節(jié) 22
4.4  功能指令 23
5.  系統(tǒng)仿真 27
結(jié)束語 32
致謝 33
參考文獻(xiàn) 34
附錄 35

基于PLC的步進(jìn)電機(jī)的設(shè)計(jì)與仿真

摘    要

隨著微電子和計(jì)算機(jī)技術(shù)的發(fā)展，步進(jìn)電機(jī)的需求量與日俱增，它廣泛用于打印機(jī)、電動(dòng)玩具等消費(fèi)類產(chǎn)品以及數(shù)控機(jī)床、工業(yè)機(jī)器人、醫(yī)療器械等機(jī)電產(chǎn)品中，其在各個(gè)國民經(jīng)濟(jì)領(lǐng)域都有應(yīng)用。研究步進(jìn)電機(jī)的控制系統(tǒng)，對(duì)提高控制精度和響應(yīng)速度、節(jié)約能源等都具有重要意義。
本控制系統(tǒng)的設(shè)計(jì)，由硬件設(shè)計(jì)和軟件設(shè)計(jì)兩部分組成。其中，硬件設(shè)計(jì)主要包括步進(jìn)電機(jī)的工作原理、步進(jìn)電機(jī)的驅(qū)動(dòng)電路設(shè)計(jì)、PLC的輸入輸出特性、PLC的外圍電路設(shè)計(jì)以及PLC與步進(jìn)電機(jī)的連接與匹配等問題。軟件設(shè)計(jì)包括主程序以及各個(gè)模塊的控制程序，最終實(shí)現(xiàn)對(duì)步進(jìn)電機(jī)轉(zhuǎn)動(dòng)方向及轉(zhuǎn)動(dòng)速度的控制。本系統(tǒng)具有智能性、實(shí)用性及可靠性的特點(diǎn)。

 
關(guān)鍵詞：  步進(jìn)電機(jī)/PLC/轉(zhuǎn)速控制/方向控制

Stepping motor control system based on PLC

Abstract

With the development of microelectronics and computer technology, the stepper motor is increasing demanded, which is widely used in printers, electric toys and other consumer products, and CNC machine tools, industrial robots, medical equipment and other electrical machinery products, and is applied in the national economy in various fields. Researching of stepper motor control system to improve the control accuracy and response speed, energy conservation is so important.
 The control system consists of hardware and software design of two parts. Among them, the hardware design includes the working principle of stepper motor, stepper motor drive circuit design, PLC input and output characteristics, PLC and PLC external circuit connection with the stepper motor and matching Problem. Software design, including the main program and each module of the control program, ultimately realizes on the stepper motor rotation direction and rotation speed control This system has the intelligence, practicality and reliability features.

Keywords:  Stepper motor, PLC, speed control, direction control