目录
1 绪论 .....................................................................1
1.1 电梯的分类............................................................1
1.2 电梯主要组成部分及工作原理............................................2
1.3 电梯的发展趋势........................................................4
2 电梯的总体设计方案论证 ...................................................6
2.1 总体方案的确定........................................................6
2.2 PLC 控制电梯系统总体设计 ..............................................7
3 PLC 的外部接口电路设计 ...................................................9
3.1 可编程控制器（PLC）的选择.............................................9
3.2 轿厢楼层位置的检测方法 ...............................................9
3.3 PLC 的选型 ...........................................................10
3.4 I/O 点数的分配及机型的选择 ...........................................11
3.5 PLC 控制程序设计 .....................................................15
4 电梯调速控制系统设计 ....................................................23
4.1 变频器的选型 ........................................................23
4.2 变频器参数设置 ......................................................26
4.3 变频器容量计算.......................................................28
4.4 变频器制动电阻参数的计算 ............................................28
4.5 速度给定曲线分析过程 ................................................29
4.6 旋转编码器的选择.....................................................32
4.7 曳引机的选择.........................................................33
5 结论 ....................................................................34
6 经济分析报告 ............................................................35
6.1 初步计算成本.........................................................35
6.2 总成本估算...........................................................35
6.3 本次设计在生产应用中的优势...........................................36
致谢 ......................................................................37
参考文献 ..................................................................38
附录 1 ....................................................................40
附录 2 ....................................................................40
附录 3 ....................................................................40
图 A ......................................................................40
