描述
解决插接件接触不良、虚焊等情况,是消除干扰源的积极主动措施;另外对于直流信号,可以在仪表的输入端加入滤波电路,以使混杂于信号的干扰衰减到最小;在实际过程中,还应当采用隔离的方式尽量避免干扰场的形成,注意将信号导线远离动力线,信号幅值不同的信号线也不应穿在同一导线管内,合理布线,减少杂散磁场的产生,对变压器等电器元件加以磁屏蔽等。但是实际上很多的干扰源是难以消除或不能消除的,这时就需要在仪表应用中根据干扰的种类采取防护措施来抑制干扰。
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys 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。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。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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ABB ACS550U1038A4 25HP 460V AC DRIVE
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