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哈尔滨DCS系统的日常维护

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哈尔滨DCS系统的日常维护

发布日期:2019-01-10 作者: 点击:

  哈尔滨DCS系统日常维护工作


  1 过程通道故障过程通道故障出现最的多的是I/O卡故障:I/O卡故障一般的判断与处理,通过系统诊断,更换通道或通过更换备用件处理,至于其内部元件老化或是其他原因造成的损坏,一般热控制人员不好判断。I/O卡的检修一般是由厂家处理,目前的热控检修人员的手段还不能达到像检修常规仪表那样检修。而且生产厂家的I/O卡件已制造成一体化的趋势,这样只能购买备件。好在这类故障只是在调试阶段出现较多,正常运行中出现几率很低。一次元件或控制设备出现故障有时不能直接被操作员发现,只有异常或报警后才通知热控人员处理。这样对检修人员和运行人员的素质要求就要提高,运行人员要详细介绍故障前后的状态便于热控检修人员能够快速、准确地处理缺陷,减少故障的扩大化,另外许多DCS厂家在产品宣传上都支持卡件热拨,做为控制人员,在运行中更换卡件时一定要做好安全防护措施否则会引起系统变化或负荷变化,尤其数字量卡件。

哈尔滨DCS系统

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炒股赚钱平台  3 QIUBIAOCAOZUOBUZHENGCHANG,YIBANSHIYOUYUJIXIEZHUANGZHIZHANGQIGONGZUO、LAOHUA、WURAN、DIANTONGDUANBUKEKAO、DIANLANCHAJIANBULAODENGZHEIYANGDEJIUXUYAOHUANJIANCHAJIKE。


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  8 干扰造成的故障:对于干扰主要是接地问题,备用电源的切换和大功率的无线通信设备如手机、对讲机等。另外还有DCS系统的干扰信号可能由本身造成的。那么对于DCS系统的接地问题越来越引起人们的重视,尤其在电力行业,大功率电器设备的启动和停止都会干扰DCS的控制信号,造成不必要的故障。为了防止干扰信号串入系统,严格执行屏蔽和接地要求和方式,信号线远离干扰源,同时采取防电源波动措施。主/从过程处理机之间在机组运行时,除非万不得以,尽量不要人为切换,已防产生干扰,如必须切换,应采取措施,先将控制切手动,以免对机组运行工况产生影响。对电子设备问、工程师站等重点部位,应绝对禁止使用大功率无线电通信设备。


相关标签:哈尔滨DCS系统,黑龙江DCS系统,DCS系统

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