| 產(chǎn)地:yczdh0004 |
6ES52421AA32
6ES52421AA32
6ES52421AA32
2、 數(shù)字量信號連接應(yīng)注意的問題
變頻器的輸入信號中包括對運行/ 停止、正轉(zhuǎn)/ 反轉(zhuǎn)、點動等運行狀態(tài)進行操作的數(shù)字量輸入信號(開關(guān)型指令信號),這些信號常來自PLC 的數(shù)字量輸出信號。PLC 通常利用其內(nèi)部的繼電器接點(繼電器輸出型P L C )或具有開關(guān)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(tài)指令,如圖1 和圖2 所示。在進行數(shù)字量信號的連接時應(yīng)注意:
(1)使用繼電器輸出型P L C 與變頻器相連時,應(yīng)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(yīng)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范圍內(nèi),保證系統(tǒng)的可靠性。
(3)設(shè)計變頻器的輸入信號電路時,應(yīng)盡量避免采用繼電器等感性負載,因繼電器開閉產(chǎn)生的浪涌電流可能引起變頻器的誤動作。
(4)當(dāng)P L C 輸出的開關(guān)信號進入變頻器時,有時會發(fā)生外部電源和變頻器控制電源之間的串?dāng)_,應(yīng)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。
3-11++++++++++++
品牌: BENTLY
型號:330130-080-01-00TSI?0 數(shù)量:4
型號:9200-06-05-05-00 數(shù)量:4
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1703017102Y1 數(shù)量1
6ES7291-8BA20-0XA0數(shù)量1
140NOC78000C 15個
140NOC78000 2個
140CRP31200C 12個
140CRP31200 2個
490NOR00003 18個
140CPU67260C,版本號:SV3.42 1個+++++++++++++
140CPU67260C,版本號:SV3.502個
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140CPS11410 1個
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1734-OE2C 面價2542 2個
1756-IB16I 面價6870
1756-L71 面價63506
1756-L75 面價216508
1756-OF8 面價24634
1756-IF8 面價13108
1756-EN2T 面價32318 2個
1756-RM2 面價59551 2個
3SB3601-4AD11 5
SACE E3H/E 25
AF2050-30
A12-30-10
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APOW-11C
AINT-14C
AFIN-01C
AFPS-11C
AHCB-01C
AOFC-02
NPBA-12
NETA-01+++++++++++
RDCU-12C
ACBU-A1++++++++++++
NDCU-33CX+++++++++++++++
3AUA0000044783 ACS800-104 WTD
APBU-44C++++++++++
NUIM-62C+++++++++++
CHARGING RESISTOR CBHX 16
NAMU-01C+++++++++++++
RC5-1/250
ACS800-104-0580-7+C123+C124+C126+E205+E212+V991+++++++++++++++++
IEC/EN 60947-4-1
S202-K10A
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656S500 μ47 K 1K5V- D2
TA200 DU
ABB A145-30?A145-30-11 AC 220VAC,CAL18-11
ASL09-30-01-81
OT 63FT3
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6SL3130-6AE21-0AB1 4
6ES7331-7KF02-0AB0 2
6ES7138-4CA01-0AA0 4
6GK5008-0BA10-1AB2 1
6ES7322-1BL00-0AA0 1
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6SL3055-0AA00-4CA5 AOP30 數(shù)量:1
6FX5002-2DC10-1GA0 2
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170AAO92100 10 6039.73
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1762-IQ16塊1
1762-OW16塊1
1762-IF2OF2塊1
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41A296305EDP1 1
3BHL000986P3017 ABB? 3
5SHY3545L0009++++++++++++++
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060-987-159 , 3個
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6SL3255-0AA00-4CA1 20
6SL3244-0BB12-1FA0 20
6SL3210-1PE23-3UL0 8
6SL3210-1PE23-8UL0 8
6SL3210-1PE27-5UL0 4
SK070帶遠程 20
SR30 20
DR08 20
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1703017102Y1 4個
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IC695CHS012 1 6480面價
IC695PSD040 1 4160
IC695CPE310 1 33850+++++++++++++
IC694MDL660 6 3990
IC694MLD754 3
IC694ALG233 3 9190
IC694ALG392 2 12210
IC694TBB032 13
IC654ACC310 1
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IC694CHS392 1 3670
IC694PWR330 1 4050
IC694CBL300 1
IC755SUE15CTD 1
SU2200UXICH 1
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IC695PSD040 1 4160
IC695CPE310 1 33850
IC694MDL660 6 3990
IC694MLD754 3
IC694ALG233 1 9190
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IC694ALG392 1 12210
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