產(chǎn)品詳情
ABB Bailey NSIM01→福州卓凱
ABB Bailey NSIM01→福州卓凱
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福州卓凱電子科技有限公司
電話;0591-62182558
熱線;15205082707(程工)
QQ:340135333
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PLC是現(xiàn)代工業(yè)的三大支柱之一,是可靠性高、應(yīng)用非常廣泛的工業(yè)控制產(chǎn)品。在中大型模塊化的PLC產(chǎn)品中,CPU模塊(中央處理器)是PLC的中心。一些重大的工業(yè)生產(chǎn)線往往要求連續(xù)運(yùn)行不能停頓,而可靠性再高的PLC也不能保證故障為零,因此,雙CPU的冗余控制是一種滿足連續(xù)生產(chǎn)要求、提高系統(tǒng)可用性的有效手段。下面以熔鹽爐自控系統(tǒng)為實(shí)例詳述雙CPU冗余控制的實(shí)現(xiàn)方法。
在使用變頻器過(guò)程中,經(jīng)常會(huì)碰到變頻器無(wú)輸出現(xiàn)象。驅(qū)動(dòng)電路損壞、逆變模塊損壞都有可能引起變頻器無(wú)輸出,此外輸出反饋電路出現(xiàn)故障也能引起此類故障現(xiàn)象。有時(shí)在實(shí)際中遇到變頻器有輸出頻率,沒(méi)有輸出電壓(實(shí)際輸出電壓非常小,可認(rèn)為無(wú)輸出),這時(shí)則應(yīng)考慮一下是否是反饋電路出現(xiàn)了故障所致。在反饋電路中用于降壓的反饋電阻是較容易出現(xiàn)故障的元件之一;檢測(cè)電路的損壞也是導(dǎo)致變頻器顯示OC(+pA或+pd或+pn)保護(hù)功能動(dòng)作的原因,檢測(cè)電流的霍爾傳感器由于受溫度,濕度等環(huán)境因素的影響,工作點(diǎn)容易發(fā)生飄移,導(dǎo)致OC報(bào)警。漏電保護(hù)器的主要部件是個(gè)磁環(huán)感應(yīng)器,火線和零線采用并列繞法在磁環(huán)上纏繞幾圈,在磁環(huán)上還有個(gè)次級(jí)線圈.當(dāng)同一相的火線和零線在正常工作時(shí),電流產(chǎn)生的磁通正好抵銷,在次級(jí)線圈不會(huì)感應(yīng)出電壓.如果某一線有漏電,或未接零線,在磁環(huán)中通過(guò)的火線和零線的電流就會(huì)不平衡,而產(chǎn)生穿過(guò)磁環(huán)的磁通,在次級(jí)線圈中感應(yīng)出電壓,通過(guò)電磁鐵使脫扣器動(dòng)作跳閘.
30618-006(30618-028-01
P0400YLFBM10120VacI/O
1C31125G02
7KT9021
AB1747-M5
51401140-450
NEWALLENBRADLEYPV1000E2711E-T10C62711ET10C6NIBSERDFRN5.161000E
SIEMENS M74001-A8120 NSPP M74001A8120
CACR-PR01AD4NRY58A伺服控制器
FANUC法那克A20B-2902-0290/08C1
ABBDPU2000R
1746-IM4
Simatic6ES5461-5AA11
TSXCDP1003
110-0132
v
限位開(kāi)關(guān)LIMIT SWITCH LSA6B 限位開(kāi)關(guān)LIMIT SWITCH LSA6B
MDS60A0055-2A3-4-0008267340
FBM24219套?
7KT1302
2711-T10C10
XPEWHT-L1-3B0-R2CREELTD
ALLENBRADLEY2711E-T14C6X
1489-A3C040R
SIemensVL1250N
3HNM14129-12K-MIXER,BASIC
歐姆龍NT620C-ST141
ALCATELNPRAE3BA23254板卡
1756-OB16I
7MH4900-3AK61
IC647SYLC
2711-K10G1
6FC5357-0BB21-0AE0
AllenBradley2711-K5A5PanelView550SerFREVJ*Test
170ADO53050
AllenBradleyPanelviewLED10002711-NL42711-T10C15
7ME5933-0AB03
AB,FlexI/O,1794-IF4I,-1F41,AnalogInput,
YB5601C3-CF/1
V18345-1010421001
VDI9802
IC756LDV010E64-925
A06B-6089-H106
A06B-6134-H203
ROD1020100002S1203
P0900FQLetterbugCharacter"M"(TubeOf10)
AllenBradley2711-T9C8/CPanelView900Color/Touch/DH?+/RS-232-Print?er/ACPower
IC693MDL940
DKC06.3-100-7-FW
1336F-C025-AN-IT
SOCAPELBA4-30-50-310
1756-TBCH
Siemens3NJ6120-3MA01-0BB0
IC697ALG320
RA60-010供應(yīng)商
6ES5451-3AE11
BDS4-210-23-414W32
1756-CNBR/D
MDD090C-N-030-N2L-110PBO
Simatic314-3UH12
P0903ZMInputPowerBus,240V
1336F-MCB-SP1K分銷商
LEICASURGIPATHEM-400TISSUEEMBEDDING/INFILTRATIONME
YASKAWA安川JRMSP-P81011
DO-1136-000
VMIVME-4941
JAMSC-120MMB20200
2711P-T15C4B1
DSQC3313HAB7215-1-07
1746-OV8
SNAP-IDC5D
6FC5357-0BB34-0AE0
6AV4012-0AA10-0AB0
1746-RT27
AFCREV1A8100-0462
TSXMCPC002M
P0951BYClusterbusTerminator
140U-R321S
三洋RS1L03AAW-AL驅(qū)動(dòng)
SM 10/20-TC1
FUJIEG102CUL
MDS60A0370-503-4-0T0827360X
100-C43P00
3HNP01222-1FLUIDREGULATOR
100-D140XX00
電路板ZX345Q8
490NRP25400
7MC3002-1AE35
AllenBradleyCommunicationAdapterModule,#1771-KA2
PU5143BSE013062R1
IO-1100-000
BoschRexrothServodynSM50/100-T1070077370-10650A
140CRP93100
AB1492-H1296,HiDensityBlock,296TotalTerminals,
1746-P2
p0914TN
ABBDSDX451L
CM31
HONEYWELL620-0036POWERSUPPLYMODULE
CIMRG7U21P51
3HAC020813-147
ZA06B-0113-B175#7008
HoneywellTC-IAH1611
DCP02
OMRONE2E-X10E1USPPE2EX10E1
3HNP01916-2MO_EQPGBLENDPG9
MC07A300-503-4-1008273049
1485A-C2
LenzeEVF8201-E
MDR60A075/503-00
7ML1998-5QD82
3HAC020817-001
P0923NPFanmoduleforP90processors
GECIRCUITBOARD44B395049-001/44A394683-G02*NEW*
499NEH14100
DSQC544B
DKS01.1-W030B-D
2711-T10C9
西門(mén)子6GK5308-2FM00-2AA36GK5308-2FM00-2AA3
6ES5382-0AA31
AS-BADU-206
ABB Bailey IMCOM04 →福州卓凱
ABB Bailey IMMPI0 →福州卓凱
ABB Bailey RU7000C →福州卓凱
ABB Bailey IMDSO04 →福州卓凱
ABB Bailey NMMU02→福州卓凱