IC200ALG240LT
厦门莫格电气自动化有限公司
主营产品,优势供应,充足库存:
各品牌DCS、PLC备件
l Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。
l Invensys Triconex: 冗余容错控制系统、基于三重模件冗余(TMR)结构的zui现代化的容错控制器。
l Bently Nevada(本特利):3500/3300系统
l Westinghouse(西屋): OVATION系统、WDPF系统、WEStation系统备件。
l Rockwell Allen-Bradley: Reliance瑞恩、SLC500/1747/1746、MicroLogix/1761/1763/1762/1766/1764、CompactLogix/1769/1768、Logix5000/1756/1789/1794/1760/1788、PLC-5/1771/1785等。
l Schneider Modicon(施耐德*康):Quantum 140系列处理器、控制卡、电源模块等。
l ABB:工业机器人备件DSQC系列、Bailey INFI 90等。
l Siemens(西门子):Siemens MOORE, Siemens Simatic C1,Siemens数控系统等。
l Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
l XYCOM:I/O 、VME板和处理器等。
l GE FANUC(GE发那科):模块、卡件、驱动器等各类备件。
l Yaskawa(安川):伺服控制器、伺服马达、伺服驱动器。
l Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
l Woodward(伍德沃德):SPC阀位控制器、PEAK150数字控制器。
IC200ALG240LT
:雷琳(销售工程师) 电 话 :0592 680 8394 手 机;
:1982497648 ;
邮 箱:1982497648 传 真:(请备注雷琳收)
近年来,人们更关注的是步进电机的变频特性。由于事物变化的不均匀性,定频技术越来越显示出它的局限性,而变频技术却能很好地适应各种随机变化的系统。本文就是介绍采用PLC控制的步进电机的变频特性,使其运用在纺织机的送经装置中。
用可编程控制器(PLC)产生各种步进脉冲驱动步进电机去达到各种控制、测试目的己屡见不鲜了。步进电机由于具有转子惯量低、定位精度高、无累积误差、控制简单等特点,成了工控的主要执行元件之一,尤其是在精确定位场合中得到了广泛的应用。但近年来,人们更关注的却是它的变频特性。由于事物变化的不均匀性,定频技术越来越显示出它的局限性,而变频技术却能很好地适应各种随机变化的系统。
PLC对步进电机的控制
PLC是广泛应用于工业自动化领域的控制器,它的功能越来越强,性能越来越*。为了配合步进电机的控制,许多PLC都内置了脉冲输出功能,并设置了相应的控制指令,可以很好地对步进电机进行控制,图1是松下FP0-C16T晶体管输出型PLC的输出电路结构。
结 语
实验效果表明,本文研制的步进电机送经装置性能良好,工作可靠。配上多种功能的人机界面后可以实现织轴收放经纱的可视化操作,改变纬密的键盘输入,防止开车横挡,出现异常情况时自动关车报警等功能。
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