自動升降机PLC控制系统.doc

PLC自动升降机控制设计 摘 要 自动升降机作为楼群建筑中垂直运行的交通工具已与人们的日常生活密不可分。实际上自动升降机是根据外部呼叫信号以及自身控制规律等运行的，而呼叫是随机的，自动升降机实际上是一个人机交互式的控制系统，单纯用顺序控制或逻辑控制是不能满足控制要求的，用可编程控制器（PLC）取代微机实现信号集选控制。 PLC可靠性高，程序设计方便灵活，抗干扰能力强、运行稳定、可靠性高等特点，所以现在的自动升降机控制系统广泛采用可编程控制器（PLC）来实现。在自动升降机控制系统中，采用PLC构成的系统，具有可靠性高，故障率低，维修方便等优点。本系统设计就是采用三菱PLC（FX-1s）作为自动升降机模型的控制装置。实验证明，该系统能较直观地描述自动升降机的结构，将自动升降机的机械传动与电气控制有机地结合起来，较全面地演示自动升降机的使用功能；通过修改PLC控制程序，可在该模型上，实现多种自动升降机运行、控制方式，不仅可以作为实验设备，也可为自动升降机的科研提供了一个模拟平台。 PLC　自动升降机　三菱PLC Abstract The electric elevator is the means of transportation daily life interwovenness that the perpendicularity runs in building group building already with people. That the electric elevator is that the call sign waits to work according to the outside as well as oneself controls law in fact, but call for is random , the electric elevator is that one people machine is each other dyadic in fact control system , the selections controlling the be to be able to not be satisfied with controlling call fors , this thesis exclusively with sequential control or the logic adopt programming controller (PLC) to substitute PC realizing signal collection controls. PLC reliability height, programming goes to the lavatory nimbly , the anti-interference ability strong , runs stability , the advanced characteristic of reliability, adopt to come to come true programming controller (PLC) therefore lift control now system is broad. In electric elevator navar, adopt the system that PLC composes , have reliability height , malfunction rates low, be maintained waiting for merit conveniently. System designs the control device being to adopt Mitsubishi PLC (FX-1s) to be the electric elevator model. Demonstration , that system can describe the electric elevator structure more penetrating , combine electric elevator mechanical drive electric control organically demonstrate the electric elevator sigmatism function more all-round; By revising PLC under the control of procedure, may on that model, realize various electric ele