| 產(chǎn)地:yczdh0004 |
SI-3694
SI-3694
SI-3694
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。
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6AV7885-0AK11-1AA4
6SL3352-7DX00-0AA0
7ML1201-1EK00
1756-PA75
1756-CN2R
1794-ACNR15
1794-IE4XOE2
1756-CN2R
1756-IA16
1SDAX00012R1
ANB10D-425/CU2T 數(shù)量1
EC401-50 數(shù)量2
ADCV01 數(shù)量4
YCB301-C100 數(shù)量2
ABB 3528346-2 1
歐姆龍 NP5-MQ001B DC24V 數(shù)量 3
6SL3040-1LA01-0AA0:1臺,
6SL3210-1SE26-0UA0 30KW:1臺,
SICK傳感器 HL18L-N1G5AB 20
GT2712-STBA 1
HIER329036P0004
FIS-HS41X-0005G數(shù)量1含原裝串口線和電源
HC-MFS43B 1個
SD834 1
SD831 1
SB822 1
AI801? 2
AO801 2
DI801? 6
DO801? 4
ACS800-104-0040-5 1
型號:?IFL15-30L-10TP-2130
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科勒 KV275C2 1個
6ES7158-0AD01-0XA0 2個
OF 014359
87A437 Rew.l
29 1104
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控制器MicroLogix 1400 1766-L32BWA 1個 面價6169.8
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ee-sx671p
糾偏裝置 BF7000MF+BFW57L-100-1500+CCD*2 1套
6ES7288-1ST60-0AA0 1個
RTD卡X00119G01+5X00121G01DEH 4件
施耐德APC AP4421 1臺
2UBA00004416R0007配套變頻器型號ACS580MV-07-0176A-100產(chǎn)品編號2UBA958000838
型號:ACS800-704-0640-7+F250+0F253 配套變頻器型號ACS800-07-1500-7/
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費斯托
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MS4-EE-1/4-V24 1
6SN1123-1AA00-0KA1 1
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6SL3260-2MA00-0VA0 13
6SL3203-0BB21-8VA0 5
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6SL3210-5FB10-4UF1 2
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HMIDT551 1 未稅
6ES7142-1BD21-0XB0
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6FC5203-0AF02-0AA2 1 件
6FC5203-0AF01-0AA0 1 件
6FC5211-0BA01-0AA0 1 件
6FC5370-1AM00-0CA0 1 件
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6FX2002-1DC00-1AC0 4 件
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西門子變頻器:6SE7021-3TB61-Z-G93 1臺
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1SNA167935R1000 4
3BHB014453R0001 1
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3BHB018155R0001 1
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6SL3120-2TE21-0AA4 1
6SL3130-6AE21-0AB1 1
6SL3210-5FB10-8UF0 1
1FK7061-4CH71-1UG0 1
1FK7064-4CH71-1UG0 1
1FK7042-2AF71-1UG0 1
FR-E710W-0.2K
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7ME3001-2ED03-0EA1-Z B11+Y16 1
7MF4433-1EA02-1AB1-Z B11+H03+Y01+Y16+C14 1
6AV7260-0GB20-0XX6 1
晶閘管5STP,04D4200,4200V/470A,GB/T15292 15只
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GCA200B 1
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140EHC10500 面價15165 2個
140CRP93200 面16052 1個
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