CC-PAIH01 51405038-175可控硅_廈門阿米控技術有限公司

產品標題: CC-PAIH01 51405038-175可控硅模塊

型號： CC-PAIH01 51405038-175

品牌： 霍尼韋爾

產品詳情資料：

使係統故障時處於狀態

　　DCS係統本身在工作中不斷地進行在線故障檢測，一旦發現故障，就將故障設備與係統隔離，使它不至於影響其他設備的正常運行。故障出現後同時會發出聲光報警，維護人員根據報警的提示進行分析故障原因並盡快的處理故障，避免故障擴大。在處理過程中要做好現場的技術措施，不要輕易重啟CPU，以免對設備造成擾動。

　　如果需要重啟CPU，需要與操作人員配合做好預防措施，一般DCS在CPU復位時會對模擬量輸出信號進行復位，這樣可以對執行器和變頻器採用手動切換控制方式，執行器也可以採用斷電方式或將模擬量輸出卡件拔掉方式(執行器具有斷信號保持功能)，係統正常後將信號加到正常值後再給執行器上電和插卡件。但是要根據DCS本身的特點進行，有的設計中有開關量輸出(開、關、保持等)，如果用戶在組態時選的輸出是開，那當重啟CPU後開關量會發出開的指令。

產品英文詳情資料：

Put the system in a safe state when it malfunctions

The DCS system itself continuously conducts online fault detection during operation. Once a fault is detected, the faulty equipment is isolated from the system to prevent it from affecting the normal operation of other equipment. After a fault occurs, an audible and visual alarm will be issued. Maintenance personnel will analyze the cause of the fault based on the alarm prompts and promptly handle the fault to avoid its expansion. During the processing, on-site technical measures should be taken and the CPU should not be easily restarted to avoid causing disturbance to the equipment.

If it is necessary to restart the CPU, it is necessary to cooperate with the operator to take preventive measures. Generally, DCS will reset the analog output signal during CPU reset, which can manually switch the control mode between the actuator and frequency converter. The actuator can also be powered off or the analog output card can be unplugged (the actuator has the function of keeping the signal off), After the system is normal, add the signal to the normal value before powering on the actuator and inserting the card. But it must be based on the characteristics of DCS itself. Some designs have switch safety outputs (on, off, hold, etc.). If the user selects the safety output as on during configuration, the switch will issue an on command after restarting the CPU.

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