SEW 伺服驱动器 MAS51A060-503-00
SEW 伺服驱动器 MAS51A060-503-00
1、伺服系统(servo mechanism)是使物的位置、方位、状态等输出被控量能够跟随输入目标(或给定值)的任意变化的自动控制系统。伺服主要靠冲来--,基本上可以这样解,伺服电机接收到1个冲,会旋转1个冲对应的角度,从而实现位移,因为,伺服电机本身具备发出冲的能,所以伺服电机每旋转个角度,都会发出对应数量的冲,这样,和伺服电机接受的冲形成了呼应,或者叫闭环,如此来,系统会知道发了多少冲给伺服电机,同时又收了多少冲回来,这样,能够很--的控制电机的转动,从而实现--的--,可以达到0.001mm。直流伺服电机分为有刷和无刷电机。有刷电机成本低,结构简,启动转矩大,调速范围宽,控制容易,需要维,但维不方便(换碳刷),产生电磁干扰,对环境有要求。因此它可以用于对成本敏感的普通工业和用场合。 无刷电机积小,重量轻,出力大,响应快,速度高,惯量小,转动平滑,力矩稳定。控制杂,容易实现智能化,其电子换相方式灵活,可以方波换相或正弦波换相。电机维,率很高,运行温度低,电磁很小,长寿,可用于各种环境。 2、交流伺服电机也是无刷电机,分为同步和异步电机,运动控制中般都用同步电机,它的率范围大,可以做到很大的率。大惯量,高转动速度低,且随着率增大而快速低。因而适合做低速平稳运行的应用。 3、伺服电机内部的转子是永磁铁,驱动器控制的U/V/W三相电形成电磁场,转子在此磁场的作用下转动,同时电机自带的编码器反馈信号给驱动器,驱动器根据反馈值与目标值进行比较,调整转子转动的角度。伺服电机的精度决定于编码器的精度(线数)。 交流伺服电机和无刷直流伺服电机在能上的区别:交流伺服要好些,因为是正弦波控制,转矩动小。直流伺服是梯形波。但直流伺服比较简,便。
联系人: 阮--
电 话: 0592-6895473
手 机: 199 4270 7092
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本公司业销售大型进口各种品DCS系统模块备件:
主营产品:DCS集散式控制系统、PLC可编程控制器、数控系统、
(CPU处器、模块、卡件、控制器、伺服驱动、工作站、驱动器、
马达、 内存卡、 电源,机器人备件等)各类工控产品。
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