JZSP-CVH03-03-EG5電纜
JZSP-CVH03-03-EG5電纜
JZSP-CVH03-03-EG5電纜
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PLC)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PLC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PLC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PLC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PLC和變頻器分開接地,避免兩者使用共同的接地線。
5SV3342-3 1
6SE6400-4BD24-0FA0 2個
6SE6400-4BD22-2EA0 2個
CIMR-VCBA0010BAA 1
Allen-Bradley 193-ECM-ETR 8900
Allen-Bradley 1734-IB4 - 27 面價713
ALLEN BRADLEY 1734-OE2C - 4 面價3228
Allen-Bradley 1788-CN2DN - 1 面價22743
Guardmaster TLS-Z GD2 Allen Bradley 440G-TZS21UPLH - 1 面價
4190
Allen-Bradley 140M-D8E-C25 - 1 面價884
Allen-Bradley 140UE-J7F4-D16 - 1 面價17648
6SL3710-1PE37-4AA0數量4
VT-MSPA1-10-1X/V0/0 R901142355 2塊----------------
IC200MDL640H 6只
IC200EBI001-DG 3只
3HAC044168-001/06 1---------------
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VHP-5 2X4K7
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AINP-01C SP 68258529 1
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MVI56E-MNET
A5E02139679 1pc
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HMCP250W5W
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BGAD-1XC 3
變頻器 6SL3220-2YE52-0CF0 SIEMENS 1臺
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FM803 個1
FM020-A02 個1
EL3122 塊1
AFPX-AO4I 個1
FM161 塊1
FM801 個1
NRS1-50-1E 1pc
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HK-FKGD40-HFHS 2
變槳變頻器 ECSCA064C 4V 倫茨 1
EGE SKZ 400 GR p/n P10503 數量 1
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Fastwel OM743-01 數量1
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1762-OB16 1PCS 面價3211
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PPC-3150
SICOM3000-2GX-8T
AIM201-0801
控制模塊 MCMA110P1600TA 170A 1600V BULK 20kV
NXP SJA1000T
AFPX-A04I 1
FM151 1
EPM-T221 1
2160200-9 1
MC1204130-003 66
MC1204130-003 14
2114559-21 10
375-3382 7
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塔底控制屏 BECKHOFF CP6231-0002-0000 TPC-1250H(含軟件、係統、8G卡
5000 Ametek/80440SE 4個
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FANUC A06B-6066-H008 A06B6066H008
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AGA 680 680