描述
电源选择:包括220V交流分电盘和220V→24V(或12V、5V)电源。对于控制系统应保证交直流转换电源冗余,冗余电源输出应通过肖特基二极管并接(除非源说明可以直接输出并接),并避免冗余电源由一个交流分电盘供电。一般说来,此类电源的配置由DCS系统供货商提供,但此时应注意,要避免多个交流电源紧密布置而带来的散热效率不佳的设计布局,同时,向供货商要求提供的同类备用电源应不少于实际配置的20%(每种类型应至少有1个备件)。另外,24VDC电源选择应考虑带故障报警输出功能,并通过DI卡件输入DCS进行实时检测报警;如果确实没有故障输出报警,应考虑使用并接继电器的方式间接接入DCS完成。
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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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