摘要
阐述了带式输送机电控系统的组成,采用西门子S7-200 PLC可编程控制器在系统进行各种开关量和模拟量的采集和控制,包括速度信号的计算以及油压模拟量的采集等。重点阐述了PID控制原理以及如何对速度实现闭环控制,使带式输送机按照预定速度曲线进行软启动,并按照规定的速度正常工作,最终实现PLC对带式输送机的电控要求。
The components of electrical control system of conveyor belt are described,especially the application of Siemens S7-200 PLC on belt conveyor system.This Siemens S7-200 PLC collects and controls the various switching value and analog quantity,including the speed signal calculate and oil pressure simulation quantity collection.Emphasis introduces the PID control principle and how to realize the closed-loop control for speed,so that the conveyor belt start softly according to the preset velocity curve and work as the normal speed.Ultimately meet the electrical control requirements of PLC to conveyor belt.
出处
《煤矿机电》
2011年第5期58-60,共3页
Colliery Mechanical & Electrical Technology
关键词
带式输送机
PLC可编程控制器
闭环控制
PID控制器
conveyor belt
PLC（Programmable Logic Controller）
closed-loop control
PID（Proportion Integration Differentiation） controller
作者简介
张晓永（1985-），男，在读硕士研究生。研究方向为机电控制与生产过程自动化。
