基于S7-200步进电机控制器

基于S7-200步进电机控制器

摘 要

步进电动机是一种将电脉冲信号转换成相应线位移或角位移的电动机。在工业自动化的今天，PLC技术已经充分应用到工业生产当中，大大提高生产效率。PLC控制步进电机也已经在许多工业控制中应用广泛,本文介绍了PLC编程控制步进电动机来完成运行，主要通过PLC发送脉冲和方向信号给步进电机的驱动器,由驱动器来控制步进电机工作的原理。利用S7-200额定电流可调的等角度恒力矩细分实现步进电机控制器，改善了步进电机在低速运行时的振动、噪声大，且输出转矩随着步进电机的转速升高而下降等缺点，显著地提高了步进电机的性能，使步进电机运动平稳，速度快，噪音低，控制精高。本设计采用PLC和大功率晶体管实现步进电机的驱动和控制,结构简单,可靠性高,成本低,实用性强,具有较高的通用性和应用推广价值。

关键词：S7-200，步进电机，继电器，驱动器

ABSTRACY

Stepper motor is a motor that converts electric pulse signal

into corresponding

linear and

angular

displacement. In the industrial automation today, PLC

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technology has been fully applied to

industrial production, greatly improve the production efficiency. PLC stepper motor control has also been widely used in many industrial control, this paper introduces the PLC programming control of stepper motor to complete the operation, mainly through the PLC send a signal of pulse

and

direction to the

stepper

motor

drive, principle by the driver to control the stepper motor work.The adjustable angle

use constant

of

S7-200 rated current

torque subdivision stepper

motor controller, vibration, noise, improve the stepping motor at

low

speed and large output the

stepper

motor

torque, shortcomings with

speed decreases, and significantly improve the stepper motor performance, the stepper motor a smooth, fast speed, low

noise, high control

precision. Drive

and control, this design uses the PLC and large power transistor implementation of stepping motor has the advantages of simple structure, high reliability, low cost, strong practicability, has high universality and application value.

Keywords: S7-200, stepper motor drive, relay,

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目 录

基于S7-200步进电机控制器 ··························································· I 摘 要 ························································································· I ABSTRACY ················································································· I 前 言 ························································································· 1 第一章 绪论 ················································································ 2

1.1概述 ················································································ 2 1.2国内、外S7-200 PLC发展和趋势 ·········································· 4 1.3 论文的主要研究工作 ·························································· 6 第二章 步进电机 ·········································································· 7

2.1步进电机的特点 ································································· 7 2.2 步进电机的工作原理及分类 ················································· 8

2.2.1 步进电机的工作原理 ·················································· 8 2.2.2 步进电机的分类 ························································ 9 2.3 步进电机在工业中的应用 ·················································· 10 第三章 西门子S7-200 PLC ··························································· 10

3.1 S7-200 PLC ····································································· 10

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