KDA3.3-150-3-A00-W
KDA3.3-150-3-A00-W
查找一般PLC故障的步驟是怎樣的？
PLC維修時，插好編程器，并將開關撥到RUN位置，再根據(jù)下列步驟查找：
1）如果PLC停止在某些輸出被激勵的位置、狀態(tài)（地方），一般是處于中間狀態(tài)，則查找引起下一步操作發(fā)生的信號，編程器會顯示信號的ON/OFF狀態(tài)。
2）如果輸入信號，將編程器顯示的狀態(tài)與輸入模塊的LED指示作比較，若結果不一致，則說明需要更換輸入模塊。更換模塊前，需要先檢查I/O擴展電纜和相關連接是否正常。
3）如果輸入狀態(tài)與輸入模塊的LED指示一致，則比較發(fā)光二極管與輸入裝置的狀態(tài)。如果兩者不同，則需要測量一下輸入模塊。如果發(fā)現(xiàn)存在問題，則需要更換I/O裝置、現(xiàn)場接線、電源等。否則，需要更換輸入模塊。
4）如果信號是線圈，沒有輸出或輸出與線圈的狀態(tài)不同，則需要用編程器檢查輸出的驅(qū)動邏輯，并檢查程序清單。
5）如果信號是定時器，并停在小于999.9的非零值上，則需要更換CPU模塊。
6）如果該信號控制一個計數(shù)器，則需要先檢查控制復位的邏輯，再檢查計數(shù)器信號。然后檢查、判斷相關組件是否異常，需要更換。
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CM1600HC-34H Mitsubishi 1600A, 1700V, N-CHANNEL IGBT (1 Per)
CM15MD-24H 15 A, 1200 V, N-CHANNEL IGBT Mitsubishi Electric
CM150TX-24S Mitsubishi 150A, 1200V, N-CHANNEL IGBT (1 PER)
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CM150DY-24H Mits Transistor IGBT Module N-CH 1.2KV 150A 7-Pin
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CM1409-08DE (ONSEMI) ARRAY 8CH LCD/CAM EMI FLTR 16DFN FULL REEL 3000 per ROHS
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CM1400DUC-24NF MIT 1400A, 1200V, N-CHANNEL IGBT (1 PER)
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CM100DC1-24NFM Mitsubishi 100A, 1200V, N-CHANNEL IGBT (Per 1)
