文档介绍：PLC在步进电机控制中的应用
摘要:随着科学技术的发展,PLC在工业控制中的应用越来越广泛。PLC控制系统的可靠性直接影响到工业企业的安全生产和经济运行,系统的抗干扰能力是关系到整个系统可靠运行的关键。自动化系统中所使用的各类型PLC,有的是集中安装在控制室,有的是安装在生产现场和各电机设备上,它们大多处在强电电路和强电设备所形成的恶劣电磁环境中。要提高PLC控制系统可靠性,一方面要求PLC生产厂家用提高设备的抗干扰能力,另一方面要求工程设计、安装施工和使用维护中引起高度重视,多方配合才能完善解决问题,有效地增强系统的抗干扰性能。
步进电机是一种能将数字输入脉冲转换成旋转或直线增量运动的电磁执行元件。每输入一个脉冲电机转轴步进一个步距角增量。电机总的回转角与输入脉冲数成正比例,相应的转速取决于输入脉冲频率。步进电机是机电一体化产品中关键部件之一,通常被用作定位控制和定速控制。步进电动机迅速地发展并成熟起来。从发展趋向来讲、步进电动机已经能与直流电动机、异步电动机,以及同步电动机并列,从而成为电动机的一种基本类型。
用PLC控制步进电机越来越流行了,这将是大势所趋的事情。
关键字:PLC,控制系统,步进电机,应用,电动机
【Abstract】: With the development of science and technology, PLC control in the industry wider and wider application. PLC control system reliability directly affects the safety of industrial enterprises and economic operation, the system of anti-interference ability is related to the reliable operation of the system key. Automated systems used in all types of PLC, some are installed in the control room concentrate, some installed in production sites and electrical equipment, they are mostly in strong and strong electrical equipment circuit is formed by heavy ic environment. PLC control system to improve reliability, while requests to use PLC manufacturers improve equipment in the anti-jamming capability, on the other hand to require design, installation and construction and use of maintenance of attach great importance to multi-Peihecaineng, effectively enhance the system anti-interference performance.
Stepper motor is able to convert digital input pulse incremental rotary or linear motion ic actuator. Each input of a pulse motor shaft of a step angle stepping increment. Motor back to the corner and enter the total number of pulses proportional to the corresponding speed depends on the input pulse frequency. Stepper motor is a ponent in mechatronic product, one is often used as a positioning control and constant speed control. Stepper motor quickly develop and mature. From the development trend of speaking, the stepper motor has been with DC motor,