[理学]陆瑞玉 毕业设计 二稿.doc

施工液压升降机电气系统控制设计 Hydraulic Construction Hoist Electrical System Control Design 作 者 姓 名： 陆瑞玉 专 业 ： 电气自动化 学 号 ： 36 指 导 教 师： 范郁宝 完 成 日 期： 2012.4.20 上海电机学院继续教育学院 摘 要 施工升降机是建筑施工中不可缺少的运输机械，本论文主要讲述的是液压式施工升降机的电气控制系统设计。本次设计主要结合了PLC与触摸屏的技术，使其自动化控制水平较低，速度单一、启制动冲击大、乘员感觉不适等缺点得到进一步改善。 本论文在内容安排上首先介绍了题目的概述与它的软硬件设计；电气控制系统方案的确定、组成、设计思想与理论依据等；随后对系统进行了详细设计，包括:控制电路的硬件设计、安装；软件设计并编制梯形图；系统通信及调试等。 主控系统采用FX2N-48MR为控制核心,结合模拟量输出模块FX2N-2DA,并设计了施工升降的理想速度曲线，实现了对液压施工升降机的控制系统的逻辑信号及速度控制。 显示监控系统选用的是三菱F940GOT触摸屏,采用GT Designer2触摸屏编程软件,设计友好的选层参数的输入和运行状态监控界面，实现了施工升降机运行过程的良好人性化。 最后，论文对全文进行总结，并提出了进一步研究的展望。 关键词：PLC；控制系统；自动化 Hydraulic Construction Hoist Electrical System Control Design Abstract Construction hoist is indispensable in the construction and transport machinery, this thesis is about the electrical control system design of hydraulic construction lifts. The design combines PLC and touch screen technology, making it a low level of automation and control, single speed, Kai braking impact, the crew is feeling unwell and other shortcomings have been further improved. Content arrangements, the paper first introduces an overview of the subject and its hardware and software design; program of electrical control systems, composition, design ideas and theoretical basis; followed by a detailed design of the system, including: hardware design of the control circuit installation; software design and the preparation of the ladder; system communication and debugging. The main control system FX2N-48MR for the control of the core, combined with the analog output module FX2N-2DA, and design a construction lift the ideal speed curve to achieve a logic signal on the control system of hydraulic construction lifts and speed control. Selected by the monitoring system is the Mitsubishi F940GOT touch screen, to GT Designer2 touch screen programming software, design friendly parameters of the selected layer st