《140DAO84210》

140DAO84210

140DAO84210  工作原理：

【厦门光沃自动化设备有限公司】
【联 系 人：陈小姐】
【免费热线：0592-5709825】
【24小时开机：18030229053 】     
【工作QQ: 2479261344】

系统故障涉及的范围  
如附表所示，遇到的系统故障现象有以下几个方面：  
·卡笼箱故障：TRICON、GE90-70PLC、3500卡笼箱均更换过。  
·系统卡件烧坏：TRICON系统更换电源模块、主处理器MP、通讯卡EICM和各I/O卡件已有18块之多；EDS系统已更换电源模块、CPU、BIU、I/O卡件等达12块；本特立3500系统卡件更换4块；ASCC防喘振控制器烧坏等。  
·系统通讯故障：EDS系统冗余的主副PLC出现6次不冗余现象；操作站与PLC的通讯故障出现4次。  
·仪表设备烧坏：主风机静叶控制器的隔离栅烧毁1次；各类探头和前置器更换累计达30余台/次。  
  
      从附表可以看出，在装置和机组的运行期间，维护中对各类故障的处理措施基本上可以分几种情况。系统接地的处理：详细检查接地系统，确保仪表专业接地符合要求；将系统工作地和安全地分开。电源系统的处理：检查UPS的输出电压的精度及各项指标满足要求（由UPS厂家配合进行）；将UPS输出端三相四线的中性点N相做接地联接；更换UPS电源、6台变压器及电源开关。仪表回路的检查：将所有仪表回路做了详细的检查。 

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