基于触摸屏与PLC的变频电梯控制

论文编号:ZD820  论文字数:23286,页数:51,附CAD电气图

摘    要
 随着我国经济的高速发展，微电子技术、计算机技术和自动控制技术也得到了迅速发展，交流变频调速技术已经进入一个崭新的时代，其应用越来越广。而电梯作为现代高层建筑的垂直交通工具，与人们的生活紧密相关，随着人们对其要求的提高，电梯得到了快速发展，起拖动技术已经发展到可调频调压调速，其逻辑控制也由PLC代替原来的继电器控制。
 在分析现代常用电梯控制系统的控制方案的基础上，结合课题要求控制系统价格相对低廉的特点，本文采用了一种新型的控制方案采用了一种新型的控制方案:由PLC控制器、通用变频器和旋转编码器组成速度控制闭环来实现电梯速度调节，相应开关量并联接入PLC的I/0点完成电梯信号的逻辑控制。本文控制系统的软件设计分两方面进行，一方面是PLC软件设计,实现了PLC控制系统开关量的逻辑处理，从而保证电梯正确响应呼叫和处理故障;另一方面是触摸屏控制界面的设计。本文采用三菱自带的F940GOT-TWD设计软件，来进行了电梯控制界面的设计，与此同时也进行了触摸屏与PLC的通信设计。结合触摸屏技术的使用，使得电梯的控制界面更显得人性化，多元化。采用PLC及触摸屏技术对电梯进行控制，通过合理的选择和设计，提高了电梯的控制水平，并改善了电梯运行的舒适感，使电梯达到了较为理想的控制效果。
 
关键词：电梯 PLC 触摸屏 通用变频器 旋转编码器

PLC-based touch-screen with the frequency of the elevator control
Abstract
 With the rapid development of China’s economic and micro-electronics technology , computer technology and automatic control technology has been the rapid development of AC frequency converter technology has entered a new era, and their use has become an increasingly widespread. The modern high-rise building elevator as the vertical transport, and is closely related to people’s lives, with people raising their demands, the lift has been the rapid development of technology has been developed from drag to a speed regulator FM, the logic control replace the original by the PLC to control the relay.
 Commonly used in the analysis of modern elevator control system,control program on the basis of the control system combined with the subject requirements of the characteristics of relatively inexpensive, In this paper, a new type of control program used a new type of control program：By the PLC controller,general-purpose inverter and the composition of rotary encoder to achieve the closed-loop speed control Lift speed regulation, parallel access volume of the corresponding PLC switches the I / 0 point to complete the lift of the logic control signal.In this paper, control system software design is divided into two aspects, on the one hand, the design of PLC software, PLC control system to achieve the switch logic processing, thus ensuring that the right elevator failure to respond to calls and handling;On the other hand is the touch screen control interface design. In this paper, Mitsubishi F940GOT-TWD own design software, to carry out the elevator control interface design, at the same time a touch screen and PLC communication design.Combined with the use of touch screen technology, making the elevator control interface even more user-friendly, pluralistic. The use of PLC and touch screen technology to control the elevator, through the rational selection and design, to improve the level of the elevator control and improve the operation of the elevator comfort, so that the lift to reach a more satisfactory control effect.
 Keywords: Elevator；PLC；Touch Screen；General-purpose inverters；Optical  encoder
目  录
摘    要 Ⅰ
Abstract Ⅱ
目  录 Ⅲ
第一章  绪 论 1
 1.1 引言 1
 1.2 曳引电梯控制系统国内外发展状况 1
 1.2.1 交流曳引电梯调速方式的发展 2
 1.2.2 电梯用微控制器技术的发展 3
 1.2.3 交流调速电梯控制技术存在的问题 4
 1.3 触摸屏技术的介绍 5
 1.4 本设计的主要内容及设计目的 8
 1.4.1 本设计的基本内容与拟解决的主要问题 8
 1.4.2 本设计的主要目的 8
 1.5 小结 9
第二章 曳引电梯控制系统的硬件设计 10
 2.1 电梯的基本结构 10
 2.2 电梯的技术要求及控制要求 11
 2.2.1 电梯的技术要求 11
 2.2.2 电梯的控制要求 11
 2.3 控制系统的总体结构及控制元件的选型 12
 2.4 小结 21
第三章 控制元件之间的通信设计 22
 3.1 PLC的端口地址分配 22
 3.2 曳引变频器参数设置及配线方法 23
 3.3 触摸屏的通信设计 25
 3.4 控制系统相关的接口设计 27
 3.5 小结 28
第四章 曳引电梯控制系统的软件设计 29
 4.1 触摸屏控制界面的设计 31
 4.2 编制PLC程序 34
 4.3 小结 35
第五章 总结与展望 36
 5.1 本次设计总结 36
 5.2 进一步展望 36
参考文献 37
致  谢 39
附件 40

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