產(chǎn)品詳情
《《《1747-SN》
《《《1747-SN》
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◇ 聯(lián)系人:程工
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驅(qū)動(dòng)電路用于驅(qū)動(dòng)逆變器IGTR,也易發(fā)生故障。一般有明顯的損壞痕跡,諸如器件(電容、電阻、三極管及印刷板等)爆裂、變色、斷線等異?,F(xiàn)象,但不會(huì)出現(xiàn)驅(qū)動(dòng)電路全部損壞情況。處理方法一般是按照原理圖,每組驅(qū)動(dòng)電路逐級(jí)逆向檢查、測(cè)量、替代、比較等方法;或與另一塊正品(新的)驅(qū)動(dòng)板對(duì)照檢查、逐級(jí)尋找故障點(diǎn)。處理故障步驟:首先對(duì)整塊電路板清灰除污。如發(fā)現(xiàn)印刷電路斷線,則補(bǔ)線處理;查出損壞器件即更換;根據(jù)筆者實(shí)踐經(jīng)驗(yàn)分析,對(duì)懷疑的元器件,進(jìn)行測(cè)量、對(duì)比、替代等方法判斷,有的器件需要離線測(cè)定。再生過(guò)電壓保護(hù)。采用逆變器使電動(dòng)機(jī)快速時(shí),由于再生功率直流電路電壓將升高,有時(shí)超過(guò)容許值??梢圆扇⊥V鼓孀兤鬟\(yùn)轉(zhuǎn)或快速減速的辦法,防止過(guò)電壓。瞬時(shí)停電保護(hù)。對(duì)于數(shù)毫秒以內(nèi)的瞬時(shí)停電,控制電路工作正常。但瞬時(shí)停電時(shí)間在10s以上時(shí),通常會(huì)使控制電路誤動(dòng)作,主電路也不能供電,所以檢出后使逆變器停止工作。
當(dāng)把變頻器和PLC安裝在同一操作柜中時(shí),應(yīng)盡可能使與變頻器有關(guān)的電線和與PLC有關(guān)的電線分開。通過(guò)使用屏蔽線和雙絞線達(dá)到提高抗噪聲水平的目的
原理圖中,各電器元件不畫實(shí)際的外形圖,而采用國(guó)家規(guī)定的統(tǒng)一標(biāo)準(zhǔn),文字符號(hào)也要符合國(guó)家規(guī)定。在電氣原理圖中,同一電器的不同部件常常不畫在一起,而是畫在電路的不同地方,同一電器的不同部件都用相同的文字符號(hào)標(biāo)明,例如接觸器的主觸頭通常畫在主電路中,而吸引線圈和輔助觸頭則畫在控制電路中,但它們都用KM表示。
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TSXCAPS9
1336F-B250-AA-DE
XPGWHT-L1-2B0-R4CREELTD
140ACI04000
MPB51A075-503/00
安川直流調(diào)速控制板JPDC-P065
AS-BDEP-297
再生過(guò)電壓保護(hù)。采用逆變器使電動(dòng)機(jī)快速時(shí),由于再生功率直流電路電壓將升高,有時(shí)超過(guò)容許值。可以采取停止逆變器運(yùn)轉(zhuǎn)或快速減速的辦法,防止過(guò)電壓。瞬時(shí)停電保護(hù)。對(duì)于數(shù)毫秒以內(nèi)的瞬時(shí)停電,控制電路工作正常。但瞬時(shí)停電時(shí)間在10s以上時(shí),通常會(huì)使控制電路誤動(dòng)作,主電路也不能供電,所以檢出后使逆變器停止工作。
最大限度地滿足生產(chǎn)機(jī)械和生產(chǎn)工藝對(duì)電氣控制系統(tǒng)的要求。電氣控制系統(tǒng)設(shè)計(jì)的依據(jù)主要來(lái)源于生產(chǎn)機(jī)械和生產(chǎn)工藝的要求。
隨著經(jīng)濟(jì)和技術(shù)的迅速發(fā)展和進(jìn)步,近幾年國(guó)內(nèi)眾多廠家在變頻器研制和開發(fā)方面,已開始了大規(guī)模資金和人力的投入。目前國(guó)產(chǎn)變頻器在控制技術(shù)和功能上,已取得了顯著的進(jìn)步和成就。但由于過(guò)去的遺留的舊觀念和態(tài)度,人們?cè)趯?shí)際應(yīng)用中,仍然對(duì)國(guó)產(chǎn)變頻器的性能和質(zhì)量有較深的懷疑和偏見,故目前制約著國(guó)產(chǎn)變頻器推廣和應(yīng)用。但國(guó)產(chǎn)變頻器以其低價(jià)格,維修方便、配件供應(yīng)及時(shí)等優(yōu)點(diǎn),正在逐漸被國(guó)內(nèi)企業(yè)技術(shù)人員認(rèn)可和接納。
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SentryCommanderR402-0-1
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DDO02
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100-D115N11
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AOSCONTROLPANELVER.2.1/abb工控屏
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DSQC301
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SentryCommanderR454-0-2
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JAMSC-B2743V
LENZE倫茨EVF8212-E1
E243
621-9934
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CPU-30ZBE
TYPE-5000
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TRICON3700A
和利時(shí)DCSFM148E
NRVFCPU01M<0>
170XTS04000
P0914XB
AllenBradleyDisconectSwitch194E-A32-1753
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RAC3.5-100-460-A00-W1-220
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1756-CFM
3350-MBP
170NEF16021
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140XBP01000
XBTZ948
1442-PS-0805M0005A
140CPS11420C
J346
MHD112B-048-PPO-BN
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A06B-0857-B100#0048
MPB51A0100-503-00
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歐陸AD102460
1756-OF8
CT小直流CHEETAH-11
140CFG01600
BDS4-210-23/414W25
7ME5805-0AB20
AllenBradleyPanelview1400E2711E-T14C6SERACheap
HONEYWELL621-0021-RCENHANCEDDIAGNOSTICSMODULE
AS-HDTA-212
30751044-509
1336F-AA6
AllenBradleyPanelView6002711-B6C1SeriesAUsed
140XBP00300
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ABB/H&BFreelance2000DAO01
YokogawadcsM-1181-3
170XTS02000
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XBTF034310
6FC5357-0BB33-0AE0
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2801-N22
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MIV08A-1-P2
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IC200UDR003
ABBASTAT備件:變壓器
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IC670CHS004
2711E-K10C15AllenBradley2711EK10C15PanelViewNEW
KOYOZ-8TR1
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EmersonPLCEC20-0808ERN
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POWERMEASUREMENT3710ACM功率計(jì)
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TC-IXR061
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2711-T10G8L1
PWSI-VAS-MStandardServicePkg(ForPW-SSI)
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PCD2.M150
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840USE10500
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DSDX452
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2711P-B7C6D1
CROUSEHINDS13/4'W/5'DRAINCOVEREXPLOSIONPROOF
HONEYWELLTK-PPD011
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ABBDCP10
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安川VS-505Z3直流調(diào)速主板JPDC-C049
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IC220MDL751
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A20B-2001-0120
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141MMS53502
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TRANSISTORMODULIGBTSKIIP23NAB126V1WLPR911322989
FOXBORO操作鍵盤型號(hào):P0903CW
ALLENBRADLEY1746-BTMSER.B1746BTMNEWFACTORYSEALED
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1746-OB16E
歐姆龍CP1L-M40DR-A
VMIVME-7648
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1336F-A040-AE-IT
FSAB1769-L35E1769L35ESERAMFG02/2012
UAGSEWLYTCD21
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富士PLCNB0-P14T3-AC
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YB161102-CC
3HAC020813-014
SCHNEIDER(施耐德)140CPS1240010
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EUROTHERMPROCESSAUTOMATIONCPUT921
EVD4902-E
HNL01.1E-0362-N0080-A-500-NNNNR911307204
ALLENBRADLEY2711P-RPUSPP2711PRP
SOCAPELBA4-30-50-310
7XV5655-0BA00
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JANCD-FC310-AX2
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AllenBradley?1756L60M03SE
Allen-Bradley2711-K5A2L1
FANUCACSERVOMOTORA06B-0373-B576#7000*NEW*
IC200ALG260【GE電氣】
AFCREV1A8100-0462
西門子6ES7222-1HF22-0XA0
3HAW050008625-0151ResolverStaticM2008
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6ES5511-5AA14
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IC697CPX772
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CT變頻器ES2403
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ServoAmplifierLTU3500608750108
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S82K-05024歐姆龍開關(guān)
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P0800HNHarness,PwrCRT
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GP570-BG11-24
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