PSA-1509U電源
PSA-1509U電源
PSA-1509U電源
數字量信號連接應注意的問題
變頻器的輸入信號中包括對運行/ 停止、正轉/ 反轉、點動等運行狀態進行操作的數字量輸入信號（開關型指令信號），這些信號常來自PLC 的數字量輸出信號。PLC 通常利用其內部的繼電器接點（繼電器輸出型P L C ）或具有開關特性的元器件（晶體管輸出型PLC）與變頻器相連，得到運行狀態指令，如圖1 和圖2 所示。在進行數字量信號的連接時應注意：
（1）使用繼電器輸出型P L C 與變頻器相連時，應注意接觸不良常帶來變頻器誤動作，因此在實際接線中要注意連接可靠。
（2）使用晶體管輸出型P L C 與變頻器相連時，應注意晶體管本身的電壓的高低、電流的大小等限制條件在其範圍內，保證係統的可靠性。
（3）設計變頻器的輸入信號電路時，應盡量避免採用繼電器等感性負載，因繼電器開閉產生的浪涌電流可能引起變頻器的誤動作。
（4）當P L C 輸出的開關信號進入變頻器時，有時會發生外部電源和變頻器控制電源之間的串擾，應注意對P L C和變頻器分開接地，避免兩者使用共同的接地線。
1783-BMS10CGN 3 面價30990
AB 191S-ANEJ3-CB25C 面價5625 140M-C2E-B25 面價519 100-C09E*10 A 面價991
6ES7132-4HB01-0AB0
2097-F5 334771403 面價1063
25-RF7P5-AL 面價631 各1
A5E03307079
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A5E00329511
A5E00748642
A5E01407049
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A5E00438473
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A5E03128933
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A5E01077957
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PXAH 401 3BSE017235R1 1
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3BSE017233R1
型號：PMSA 122；訂貨號：3BSE 005677R1 1
型號：PMSC 122E20S；訂貨號：3BSX 800503-113；長度：20米
型號：PMSC 122E20S；訂貨號：3BSX 800503-120；長度：20米
SCHNEIDER ELECTRIC LEXIUM 32 LXM32MD30N4 數量1
ABB SACE E2N 20, Iu=2000A, Ue=690V, 50-60Hz 3P 帶手操
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ACS510-01-125A-4 1
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RELIANCE ELECTRIC 801466-R 801466R
RELIANCE ELECTRIC 801463-R 801463R
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RELIANCE ELECTRIC 54200-3 542003
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MTS SYSTEMS CO 471908-02 47190802
MOTOROLA R-2001D R2001D
豫公安備 41010502000017號