电气自动化论文编号:ZD268 论文字数:20804,页数:45

目  录

1 绪论 1
1.1 电梯继电器控制系统 1
1.1.1 电梯继电器控制系统的优点 1
1.1.2 电梯继电器控制系统存在的问题 2
1.2 PLC及其在电梯控制中的应用特点 2
1.2.1 PLC的特点 2
1.2.2 PLC控制电梯的优点 4
1.3 电梯变频调速控制的特点 4
1.4 课题的来源 5
1.5 本章小结 5
2 方案选择 7
2.1 变频器的选择 7
2.1.1 变频器的分类 7
2.1.2 选择变频器品牌型号 7
2.1.3 选择变频器规格 7
2.1.4 通用变频器 8
2.1.5 VS—616G5型通用变频器 8
2.2 PLC的选择 9
2.2.1 I/0点数的分配 9
2.2.2 轿厢位置检测 11
2.2.3 可编程控制器（PLC）的选型 13
2.3 本章小结 13
3 系统的硬件开发 14
3.1 电梯设备 14
3.1.1 电梯的分类 14
3.1.2 电梯的主要参数 14
3.1.3 电梯的主要组成部分 15
3.1.4 电梯的安全保护装置 15
3.2 PLC控制系统硬件开发 17
3.3 设计思想 17
3.4 本章小结 20
4 系统软件开发 21
4.1 电梯的三个工作状态 21
4.1.1 电梯的自检状态 21
4.1.2 电梯的正常工作状态 21
4.1.3 电梯强制工作状态 21
4.2 系统的软件开发方法确定 22
4.2.1 软件设计特点 22
4.2.2 模块化编程 23
4.3 系统的软件开发 24
4.3.1 电梯的开关门运行回路 24
4.3.2 电梯的内指令外召唤信号 26
4.3.3 电梯的选层定向及反向截梯回路 27
4.3.4 层楼位置指示 29
4.3.5 呼梯铃控制与故障报警 30
4.3.6 电梯的消防运行回路 31
4.4 本章小结 32
5 电梯模拟调试及安装 33
5.1 电梯模拟调试 33
5.2 电梯安装调试 33
5.3 本章小结 34
6.结论 35
致谢 36
参考文献 37
附录 38

摘  要

 随着我国经济的高速发展，交流变频调速技术已经进入一个崭新的时代，其应用越来越广泛。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，电梯得到了快速的发展，其拖动技术已经发展到了变压变频调速，其逻辑控制也由PLC代替原来的继电器控制。
 本文在采用PLC和变频器实现电梯常规控制的基础上，通过对变频器和PLC芯片的合理选择和设计，利用安川VS—616G5型变频器可编制速度曲线的特点为电梯舒适度的提高，提供了技术支持。大大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和运行效果。并利用旋转编码器发出的脉冲信号构成位置反馈，实现电梯的精确位移控制。通过PLC程序设计实现楼层计数、换速信号、开门控制和平层信号的数字控制，取代井道位置检测装置，提高了系统的可靠性和平层精度。该系统具有先进、可靠、经济的特色。
 该电梯控制系统具有司机运行和无司机运行即手动和自动的功能，并且具有指层、厅召唤、选层、选向等功能。具有集选控制的特点。
 
关键词：电梯；PLC；变频调速；模块化；旋转编码器
ABSTRACT
 
 As China's rapid economic development, exchange of VVVF technology has entered a new era, its application more widely. The elevator as a modern high-rise building the vertical transport, and is closely related to people's lives, as people raise their requirements, the lift has been the rapid development of its technology has developed to drag the PSA Frequency Control, the logic control Also by the PLC to replace the original relay control.
 Based on the realization of a PLC and inverter of conventional elevator control on the basis of the converter through the PLC chip and a reasonable choice and design, use of Yasukawa VS-616G5-speed converter can be prepared for the lift of the characteristics of the improved comfort, to provide Technical support. Greatly improving the control of the elevator, the elevator and to improve the operation of comfort, so that the lift reached a better control and operation results. And using a rotary encoder pulse a position feedback, and lift the precise control of displacement. PLC program designed to achieve through the floor count, for speed signal, to open the door of peace control of the digital control signals to replace Wells Road location detection devices, improving the reliability of the system accuracy of the peace. The system has advanced, reliable and economic characteristics.
 The elevator control system has run drivers and drivers operating without that manual and automatic features, and with that layer, called the Office for the election of the Commission to function. Set election with control features.
 
Key words: Elevator; PLC; Frequency Control; modular; Encoders