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毕业设计-PLC自动控制升降电梯控制电路图设计.doc
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毕业设计-PLC自动控制升降电梯控制电路图设计.doc
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****本科毕业设计
[自动控制升降电梯控制电路设计]
学生姓名:
学生学号:
院(系): 机电工程学院
年级专业: 机械设计制造及其自动化
指导教师:
二〇 年 月
****本科毕业设计(论文) 摘要
Ⅰ
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。本
文在已有的通用变频器的基础上,采用 PLC 可编程控制器对电梯进行控制,通过
合理的选择 PLC 可编程控制器和拖动电机,以及对控制系统程序的设计,提高了
电梯的控制水平和可靠性,降低了故障率,提高了电梯运行速度,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 PLC 控制,变频调速,电梯,舒适感
****本科毕业设计(论文) ABSTRACT
Ⅱ
ABSTRACT
With the development of the economy, microelectronic technology, computer
technology and the automatic theory are developed rapidly, the AC variable frequency
technology has been in a new state. The article is based on the now-being general
frequency converter, using PLC to control the elevator, the reliability is improved and
the feeling of comfort is better through the reasonable selection and design, so the
effect of control is more ideal.
Keywords PLC control, frequency conversion timing, elevator, felling of comfort
****本科毕业设计(论文) 目录
1
目 录
摘 要 ............................................................................................................................I
ABSTRACT .................................................................................................................II
1 绪论..........................................................................................................................1
1.1 电梯的发展..............................................................................................................................1
1.1.1 电梯的发展现状...............................................................................................................2
1.1.2 电梯技术发展...................................................................................................................3
1.1.3 电梯的结构.......................................................................................................................3
1.1.4 电梯发展趋势...................................................................................................................4
1.1.5 现代电梯存在的问题.......................................................................................................4
1.2 本设计的主要内容..................................................................................................................4
2 PLC 工作原理及应用.............................................................................................6
2.1 PLC 的基本概念.....................................................................................................................6
2.1.1 PLC 的定义 ......................................................................................................................6
2.1.2 PLC 的特点 ......................................................................................................................6
2.2 PLC 的基本结构.....................................................................................................................7
2.2.1 CPU 的构成......................................................................................................................7
2.2.2 I/O 模块 ............................................................................................................................8
2.2.3 电源模块...........................................................................................................................8
2.2.4 底板或机架.......................................................................................................................9
2.3 PLC 的应用.............................................................................................................................9
2.4 PLC 的发展...........................................................................................................................10
3 电梯系统总体设计................................................................................................12
3.1 变频器的选择及参数设置 ...................................................................................................12
3.1.1 变频器的选择...............................................................................................................12
3.1.2 VS-616G5 型通用变频器电梯调速系统 ......................................................................13
3.1.3 变频器结构及参数设计.................................................................................................14
3.1.4 VS-616G5 变频器的主要参数设置 ..............................................................................15
****本科毕业设计(论文) 目录
2
3.2 可编程控制器(PLC)的选择..........................................................................................16
3.2.1 轿厢位置检测.................................................................................................................16
3.2.2 可编程控制器(PLC)的选型 .....................................................................................17
3.3 PLC 控制系统硬件设计.......................................................................................................17
3.3.1 信号控制系统.................................................................................................................18
3.3.2 电梯控制系统实现的功能.............................................................................................18
3.3.3 电梯操作方式.................................................................................................................19
3.3.4 I/O 点数的分配及机型的选择 ......................................................................................19
3.4 计算说明及型号选择 ...........................................................................................................21
3.4.1 电机选择及变频器容量计算.........................................................................................21
3.4.2 变频器制动电阻参数的计算.........................................................................................22
3.5 门电机主电路的设计 ...........................................................................................................22
3.6 系统结构框图........................................................................................................................23
3.7 系统原理图............................................................................................................................23
4 系统软件设计........................................................................................................24
4.1 可编程控制器的设计 ...........................................................................................................24
4.1.1 电梯的三个工作状态.....................................................................................................24
4.2 可编程控制器的软件设计方案..........................................................................................25
4.2.1 软件设计特点.................................................................................................................25
4.2.2 模块化编程方法.............................................................................................................26
4.3 可编程控制器的软件设计 ...................................................................................................26
4.3.1 电梯的开关门运行程序设计.........................................................................................26
4.3.2 内指令信号处理.............................................................................................................29
4.3.3 外召唤信号处理.............................................................................................................29
4.3.4 司机内选定向.................................................................................................................30
4.3.5 无司机内选外呼定向....................................................................................................31
4.3.6 反向截梯.........................................................................................................................32
4.3.7 楼层计算、换速、平层停车........................................................................................33
4.3.8 楼层位置的显示.............................................................................................................34
4.3.9 呼梯铃控制与故障报警.................................................................................................35
4.3.10 消防运行.......................................................................................................................36
5 结论.......................................................................................................................37
参考文献......................................................................................................................38
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