1、 1 小车运动控制系统的研究小车运动控制系统的研究 摘要: 小车运动控制型实物教学模型的机械结构由丝杆、 滑杆等机械部件组成; 电气方面有直流减速电机、传感器、开关电源等电子器件组成;可编程控制器可 采用目前市面上比较流行的各类 PLC,如西门子、三菱或欧姆龙等。本论文采用 的是欧姆龙的 PLC。该模型是将 PLC 技术,位置控制技术、机械传动等有机结合 成一体的教学仪器。 本文详细介绍了小车运动控制系统的硬件电路的设计与实现。 并给出详细的 电路连接图。对欧姆龙 PLC,直流电机以及接近开关传感器的工作原理和在本实 验中直流电机,传感器所起的作用做了详细的介绍。重点就如何用梯形图实现小 车的
2、左行与右行,停止以及位置的显示,如何报警进行研究。对现场总线和工业 现场控制进行了简单的介绍。 用 PLC 继电器逻辑实现小车的智能控制具有深远的现实意义, 可以将此技术 广泛应用于车间物料的传送。其具有极为方便的操作性能,较高运行效率和运行 可靠性。 关键词:直流电机;接近开关;欧姆龙 PLC;机械传动; 2 The study for vehicle motion control system Abstract: The mechanical structure of the teaching model which is called the type Motion Control Ve
3、hicle is made up of screw, slider and other mechanical components; There are DC geared motors, sensors, electronic devices, such as switching power supply components in electrical part; The PLC can be the currently popular types in the market, such as Siemens, Mitsubishi or Omron. In this thesis, th
4、e Omron PLC is used. The model is the teaching equipment which is the organic integration made up of PLC technology, the location of control technology, mechanical transmission. This paper describes the design and implementation of the hardware circuit in car motion control system. And a detailed connection diagram of the circuit is given. For Omron PLC, the working principle of DC motors and the proximity switch sensor switch, as well as the actions of DC motor and sensors in this experiment