
《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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