厦门莫格电气自动化有限公司
我们提供:PLC模块,DCS卡件,ITCC卡件,AI DI AO DO模块
网络模块 计数模块 适配器模块 CPU模块 扫描模块
本特利3500系列卡件 Triconex模块 HIMA模块 ICS卡件 GE 燃机备件 艾默生DCS备件
联系人:雷琳
24小时销售热线:18050035902
Q Q : 1982497648
电话:0592-6808394
传真:0592-6514751
地址:厦门市湖里区安岭路1012号202之二单元
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人机接口
机组LCU配置操作面板作为人机交互的窗口。运行人员通过操作面板可以进行机组的启、停,断路器的分、合,有功、无功的给定等多种操作。对于操作中的错误或不合法的命令,LCU拒绝控制命令的执行。对合法的命令,显示控制的过程及最终结果。在操作面板上可对机组的动作情况和当前的工作状态以及各种电流、电压量、温度量、有功、无功值进行监视,LCU的这种完整的操作显示功能使它即使脱离上位机仍能独立运行。操作面板发生故障,不影响系统的正常运行,主机仍能对机组LCU进行监控。
2.5 诊断功能
机组LCU具有对本身的硬件及各控制单元进行全面的保护性自我检验功能,并根据检验结果采取相应的保护性措施,防止出现不良结果。LCU同时向主机报告诊断的结果,根据自诊断记录,值班维护人员可以了解LCU装置工作是否良好,指导处理异常情况。
2.6 通信功能
1) 机组LCU与厂级监控层的通信。通过以太网实现,通信的主要内容有:将LCU采集到的各种信息、正在执行的控制操作、内部自诊断结果即时送上主机。接受主机的时间设定值和GPS时钟同步信号。接受主机的P、Q设定值及控制命令等。
2) 机组LCU与微机保护装置的通信。通过RS485总线将运行状态、报警等 信号采集并传送到厂级监控层主机。
3) 与-设备的通信。LCU能够通过硬布线的方式,将调速器、励磁装置的运行状态、报警等信号采集并传送到厂级监控层主机。
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