IC200CBL505
IC200CBL505
IC200CBL505
IC200CBL505
_________________________________________ 〖厦门光沃自动化设备有限公司 竭诚为您服务〗 〖联系人：欧先生 〗 〖手机：18030229053(微信同号) 〗 〖QQ: 2479261344 〗 〖传真：0592-5709825 【价格】如此低价,仅此一家 【货期】大量现货,下单后即可发货 【质量】全新原装,进口*** 【保障】产品经过专业检测，质保一年,15天包退换 【品牌】Allen-Bradley罗克韦尔、ABB、本特利Bently 3500系统卡件、GE、艾默生西屋等模块卡件 ______________________________________________
英威腾Goodrive200系列变频器应用于现场，共有17台功率大小不一的变频器，当功率大的变频器启动时会影响系统正常的485通讯，怀疑Goodrive200与DCS（分布式控制系统）之间的485通讯被干扰。 DCS（分布式控制系统）与变频器通过485进行通讯来读取实时运行的状态值（频率、电压、功率等），并将变频器的工作状态（频率、输出电流）显示于操控台。 解决问题过程描述： 现场485分两组分别与DCS进行通讯。变频器速度由AI2控制，启停由S端子控制，负载有风机和水泵两种。客户反应现场当132KW和220KW的大功率变频器运行时就会导致整个系统的485通讯中断。现场分析问题过程如下： 现场配电：现场厂房共六层，变压器配电为第一层，共3个变压器，一个3000KW容量的变压器，两个2500KW容量的变压器，变压器容量足够，使用示波器测量变频器工作时的电网电压波形，电网谐波也不大；二层为操控室和英威腾变频器（分两个房间）；三层为DCS控制室；电机和风机、水泵负载位于四到六层。现场的配电柜走线、线槽的强弱电走线也比较规范，地线是从变压器端引出，通过与现场工程师沟通，变压器端采用的是TN-S系统接线方式（由于现场不允许在变压器处查看接地情况）。
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