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冰雪小七
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樓主  發(fā)表于: 2016-07-14 09:30
系統上電后，壓力幾乎為0，需要達到校驗所需壓力，按下啟動(dòng)按鈕，PLC投入第一個(gè)PID控制，變頻器的輸出高值的控制信號，控制水泵高速運轉，快速接近壓力收到值，直到壓力達到目標值并保持。1）壓力穩定水罐內壓力：模擬量1路2）操作按鈕：2個(gè)（啟動(dòng)、停止）2、輸出：1）變頻器控制輸出：1路壓力穩定水罐狀態(tài)指示燈：1路（僅在壓力穩定到設定值時(shí)亮）求大神指導

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