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LND-W-152現貨 in stock! 歡迎來電咨詢~！！

LND-W-152,

LND-W-152

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一般工業控制系統既包括弱電控制部分，又包括強電控制部分。為了使兩者之間既保持控制信號，又要隔絕電氣方面的，即實行弱電和強電隔離，是保證系統工作穩定，設備與操作人員安全的重要措施。

　　電氣隔離目的之一是從電路上把干擾源和易干擾的部分隔離開來，從而達到隔離現場干擾的目的。

　　一、信號隔離

　　信號的隔離目的之一是把引進的干擾通道切斷，使測控裝置與現場僅保持信號，不直接發生電的。工控裝置與現場信號之間常用的隔離方式有光電隔離、脈沖變壓器隔離、繼電器隔離和布線隔離等。

　　1.光電隔離

　　光電隔離是由光電耦合器件來完成的。其輸入端配置發光源，輸出端配置受光器，因而輸入和輸出在電氣上是完全隔離的。由于光電耦合器的輸入阻抗(100Ω～1kΩ)與一般干擾源的阻抗(105～106Ω)相比較小，因此分壓在光電耦合器的輸入端的干擾電壓較小，它所能提供的電流并不大，不易使半導體二極管發光。另外光電耦合器的隔離電阻很大(約1012Ω)、隔離電容很小(約幾個pF)，所以能阻止電路性耦合產生的電磁干擾，被控設備的各種干擾很難反饋到輸入系統。

　　光電耦合器把輸入信號與內部電路隔離開來，或者是把內部輸出信號與外部電路隔離開來，如圖1所示。開關量輸入電路接入光電耦合器后，由于光電耦合器的隔離作用，使夾雜在輸入開關量中的各種干擾脈沖都被擋在輸入回路的一側。由于光電耦合器不是將輸入側和輸出側的電信號進行直接耦合，而是以光為媒介進行耦合，具有較高的電氣隔離和抗干擾能力。

　　目前，大多數光電耦合器件的隔離電壓都在2.5kV以上，有些器件達到了8kV，既有高壓大電流大功率光電耦合器件，又有高速高頻光電耦合器件(頻率高達10MHz)。常用的器件如4N25，其隔離電壓為5.3kV；6N137，其隔離電壓為3kV，頻率在10MHz以上。

　　2.脈沖變壓器隔離

　　脈沖變壓器的匝數較少，而且一次繞組和二次繞組分別繞于鐵氧體磁芯的兩側，這種工藝使得它的分布電容特小，僅為幾個pF，所以可作為脈沖信號的隔離元件。脈沖變壓器傳遞輸入、輸出脈沖信號時，不傳遞直流分量，PLC使用的數字量信號輸入/輸出的控制設備不要求傳遞直流分量，因而在工控系統中得到了廣泛的應用。

　　圖2是脈沖變壓器的應用實例。電路的外部信號經RC濾波電路和雙向穩壓管抑制常模噪聲干擾，然后輸入脈沖

　　變壓器的一次側。為了防止過高的對稱信號擊穿電路元件，脈沖變壓器的二次側輸出電壓被穩壓管限幅后進入測控系統內部。一般地說，脈沖變壓器的信號傳遞頻率在1kHz～1MHz之間，新型的高頻脈沖變壓器的傳遞頻率可達到10MHz。

　　3.繼電器隔離

　　繼電器的線圈和觸點沒有電氣上的，因此，可利用繼電器的線圈接受信號，利用觸點發送和輸出控制信號，從而避免強電和弱電信號之間的直接接觸，實現了抗干擾隔離。

　　圖3是繼電器輸出隔離的實例示意圖。在該電路中，通過繼電器把低壓直流與高壓交流隔離開來，使高壓交流側的干擾無法進入低壓直流側。

　　4.布線隔離

　　將微弱信號電路與易產生噪聲污染的電路分開布線，zui基本的要求是信號線路必須和強電控制線路、電源線路分開走線，而且相互間要保持一定的距離。配線時應區別分開交流線、直流穩壓電源線、數字信號線、模擬信號線、感性負載驅動線等。配線間隔越大，配線越短，則噪聲影響越小。但是，實際設備的內外空間是有限的，配線間隔不可能太大，只要能維持zui低限度的間隔距離便可。

　　附表列出了信號線和動力線之間應保持的zui小間距。如果受環境條件的限制，信號線不能與高壓線和動力線等離得足夠遠時，就得采用諸如信號線路接電容器等各種抑制電磁感應噪聲的措施。

 

IC670MDL642RR 125VDC Pos/Neg Logic Input 16 pt. Grouped

IC693PBS201 Profibus DP Slave Module

IC756MDV010K-97 DV Draw Dvlpnt on Alpha OpenVMS, Korean, Version 9.7

MicroLogix 1500/1769 System 1769-OB16 16 POINT 24 VDC SOURCING OUTPUT MODULE

PLC-5/1771 System D1771-6.5.97 SPI PROTOCOL INTERFACE MODULE USER MANUAL

Application-specific products 9358-PBNT03ENE RSBATCH NT FOR PROCESSLOGIX 03 UNITS

Operator Interface 2711P-T6C8A PV PLUS 600 COLOR, TOUCH, DH+, AC PS

Support 9355-WABSNS SUPT RENEWAL CONTRACT FOR 9355WABSNEN

Support 9701-VWSB025AS SUPT RENEWAL CONTRACT FOR 9701VWSB025AENE

Support 1747-PBASER BASIC DEVELOPMENT SOFTWARE SLC500 REINSTATEMENT

EtherNet/IP Products 2711P-K10C4B1 PV PLUS 1000, KEYPAD, ENET, AC PS, STD MEM

RSI Software Products 9301-2SE340JPU1R RSVIEW32 RUNTIME 1500-32K UPGRADE OUT-SUPT (JP)

RSI Software Products 9356-PRO2350U1R UPGRADE: OUT-SUPT: RSSQL STD.150 TO PROF.5000 TAG

Motion Control 1326AB-B740E-S2K7L MOTOR,SERVO,460V,50.0NM,3400RPM,SINGL,BRK,IP67

4261A-4-.8-N12 7 SEG PANEL DISP. 4 (.8") DIGITS. ASCII/SERIAL INTERFACE. QUICK CONN W/PROTOCOL CONV. NEMA 12

HMI-KPN-402 QuickPanel Keypad for 10.4" QPICxxx000

IC693CPU374 CPU 374 Module (240K Bytes configurable user memory) The battery for the CPU is now included in the CPU backplane box, Embedded Ethrnet 10/100Mbs w/built-in switch. No serial ports.

SPS-55W 24 VDC, 2.3 Amp, 55W power supply, Din Rail Mount

AKD-P01207-NBEC-0000

AIMB-240L-00A1E

BICOM B232-A

肯懋 HE-860

PEAK765VL2

HPU3200ADC

SRCP-BUSR2A

1492-SPM1D050-N MCB Supplementary Protector 5 A

通用型變頻器 6SE6 440-2UD13-7AA1 0.37KW,73 x 173 x 149

電機啟動器 3VU13403MK00

150-C37NBR SMC-3 37A Smart Motor Controller

1609-P3000N Uninterruptible Power Supply P UPS Acces

1771-CP1 1771 Power Supply

193-EC2AD E3 Plus 1-5 A Overload Relay

198-H3 194R Circuit Breaker Operating Mechanism

2090-CPBM7E7-16AF01 MP-Series 1 m Length Pwr and Brake Cable

2094-AC09-M02-S Kinetix 6000 Integrated Axis Module

CP9I-0MPB-0070-AZ Alpha 50HVis motor power cable (7 meter)

GFK-0356 Series 90-30 Programmable Controller Installation Manual

IC200UEX222 28 point expansion. (16) 24VDC In, (12) 24VDC Out with ESCP, 24VDC Po wer Supply (includes IC200CBL501)

IC647APC005 PA Production Client 5 Pak

IC647PDCH200 Ruggedized PDC Historian Base with 20000 Tags

IC693CHS393RR Base, Remote Expansion, 10 Slots (700 ft)

IC754DVNM01 DeviceNet Master for QP Control

KIT-GFS-357 Proficy HMI/SCADA - CIMPLICITY Workshop Student Kit

SLC/1746 System D1747-6.12 DH-485/RS-232C INTERFACE MODULE USER MANUAL

Distributed I/O 1734D-IA8XOA8 120 VAC 8 IN 8 OUT, DNET COMMS, SCREW

Application-specific products 1407-CGCM COMBINATION GENERATOR CONTROL MODULE

Operator Interface 2711-T10C3L1 PV1000 COLOR TOUCH, DH485 & RS232 PRINT

Support 9301-2SE3500DES SUPT RENEWAL CONTRACT FOR 93012SE3500DE

Support 9381-PA250KENR SUPPORT REINSTATEMENT CONTRACT FOR 9381PA250KEN

DeviceNet Products 1790D-T0B16 DNET LDX, 24VDC, 16 SOURCE OUT BASE, TERMINAL BLK

RSI Software Products 9301-2SE3303ZHE RSVIEW32 RUNTIME 1500 WITH RSLINX (CHINESE)

RSI Software Products 9358-PBBK10ENE RSBIZWARE BATCH FOR PLX BACK-UP KEY 10 UNITS

Motion Control MPL-B560F-MJ24AA MOTOR,SERVO,26.8NM,3000RPM,MULTI,460V,BRK

Motion Control 2090-UXLF-123 AC LINE FILTER,ULTRA,23 AMPS,1 PHASE

GQPM3D200B2P 6" Blue Monochrome Mini, GE Fanuc Label, 24Vdc

IC646MSS005 Logic Developer - State Standard - 5 Pack

MTR-3T45-I-R-0-M-0 MTR-Series Servo Motor, Resolver, Metric

ST-1224 STXi input module 4 points, Negative Logic, 12V/ 24V DC

SCXI-1125

COIN P818C P818X

AP-1317

S1200BTL

AH9-0065-05

BIPV10-IAT

1492-RCDA4A25 Residual Current Device 25 A

存儲卡 6ES7952-1KP00-0AA0 FEPROM 存儲卡， 8M

變送器 3RS10 40-1GW50

1497-G-BASX-0-N Control Circuit Transformer

1606-XLDC92D 14 to 34VDC In 24VDC Out DC Converter

1762-OF4 MicroLogix 4 Point Analog Output Module

188-K3D060 6 A Miniature Circuit Breaker

194L-HC6N-175 194L Control and Load Switch Actuator

2090-CPBM7DF-06AA60 MP-Series 60m Power and Brake Cable

2090-XXNPMF-14S01 MP-Series 1 m Length Pwr and Brake Cable

BC647TPD935 "CIMPLICITY HMI ProServer 35,000 I/O Development and Runtime with Proficy GlobalCare"

GC647PRTKIT005 GlobalCare Complete - Proficy Portal Enterprise Edition Starter Kit 5 User Ver 3.0

IC200MDL742LT OUTPUT 24VDC POS LOGIC 0.5A PER PT (2 GROUPS OF 16) W/ESCP 32PT (LT)

IC646PEW120 OpenProcess Engineering Wrokstation (300 I/O)

IC647MRC075 Logic PC and View Runtime 75 I/O with USB Hardware key

IC677YCNTR003 IP67 Y-distributor, 3-pos. +PE, straight connector M12 on 2 x straight socket M12

IC697VAL132 Discontinued. Replaced VME-3125A-200000 different front panel connector. Contact GE Embedded for more details.

IC800SSI228D2RR 28A, 230V, DeviceNet S2K Servo Controller for S-Series Motors

SLC/1746 System 1747-L541 SLC 5/04 CONTROLLER, 16K MEMORY

Industrial Computers 6181P-12NP2KHDC VERSAVIEW INTEGRATED DISPLAY COMPUTER 12-INCH TFT

Application-specific products 9358-PBA60ENE RSBIZWARE BATCH FOR PROCESSLOGIX ARCHIVER 60 UNITS

Operator Interface 2711-B5A9L2 PV550 MONO KEY&TOUCH, DH+ & RS232 PRINT

Support 9303-4DTE01ENS SUPT RENEWAL CONTRACT FOR 93034DTE01ENE

Support 9391-SDWK3S 9391-SDWK3 SOFTWARE SUPPORT CONTRACT RENEWAL

ControlNet Products 2711-B6C15L1 PV600 COLOR KEY&TOUCH, CNET & RS232 PRINT

RSI Software Products 9301-2SE2500KOU5 RSVIEW32 WORKS 5K-100K UPGRADE IN-SUPT (KO)

RSI Software Products 9358-BEPB03ENE RSBIZWARE BATCH AND EPROCEDURE BUNDLE 03 UNITS

Motion Control MPL-A4540C-MJ22AA MOTOR,SERVO,10.2 NM,1500RPM,MULTI,230V,9.5KG

Motion Control 2090-XXNFMP-S25 CABLE,NON-FLEX,MOTOR FEEDBACK,MP/1326AB,25M

CBL-T7-MB-10 Power/Brake Cable, MTR-3T1x & MTR-3T2x Series Servo Motors, 10 Ft.

IC641PCC014 Toolkit, I/O Driver C

IC800SSD104S1 4.3 Amp S2K Series Servo Amplifier, 115/230 VAC

PR-PAT-AXS01 Proficy PAT - Driver For All Axsun Technologies Near-Ir Spectrometers

PXI-6115

CONTEC BPC-0511

SP4I865GLVA

PCI-4147

SBC82610VE

PAA100F-5

1492-MR8X12 IEC 8 x 12 mm Marker Card

1495-N25 Auxiliary Contact Adapter Kit

行程開關 3SE53120SB13

運行版軟件 6AV2105-0KA04-0AA0 SIMATIC WinCC Runtime 專業版 8192 PowerTags V14

1585J-M4TBJM-4 RJ45 Ethernet Media

1756-OF6VI ControlLogix 6 Pt Iso A/O Voltage Module

188-K1C030-N Miniature Circuit Breaker 3 A

194E-GA20E-PD10-TN 194E Load switch

2090-CFBM7DF-CEAA03 MP-Series 3m Servo Feedback Cable

2090-UXCK-D09 Ultra Series Connector Kit

BC646PCN100 OP Operator Console Runtime S/W Ultd I/O w/GC

GC647DMS005 GC DataMart 5 PA Connections

IC200ALG263 Analog input 15 bit voltage 15 channel

IC646IFCLNTCRO025C iFIX iClient Read Only 25 PK Keyless (M1Component Part)

IC647IFPRDV00075C iFIX Profsnl SCADA 75 I/O Development (M1Component Part)

IC660MLS100 Label for IC660BBS100 (Qty 100)

IC697BEM741 Sell to Alstom only. FIP Bus Controllerfor 9070

IC800BIDK020 Dual Beta i-Series amplifier, 20/20 amp, 200VAC

ControlLogix/1756 System 1756-L55M22 LOGIX5555 PROCESSOR WITH 750KBYTE NV MEMORY

Industrial Computers 6182H-7BEH6D VVCE 700, KEY/TOUCH, EXT MEM, RIO/DH, DC

Process Control 1757-PROCESSLINX PROCESSLINX OPC SERVER TO OPC SERVER COMM SOFTWARE

Operator Interface 2711P-K15C15B1 PV PLUS 1500, KEYPAD, CNET, AC PS, STD MEM

Support 9240-WIN16RTS SUPT RENEWAL CONTRACT FOR 9240WIN16RT

Support 6723-PCSR SUPPORT REINSTATEMENT CONTRACT FOR 6723-PCS

Support F5130-RM1 FIRMWARE UPGRADE FOR 5130-RM1 PLC5250 PROCESSOR MO

RSI Software Products 9301-2SE2350ZHU1 RSVIEW32 WORKS 150-5K UPGRADE IN-SUPT (ZH)

RSI Software Products 9351-ICDOC INTERCHANGE DOCUMENTATION SET (RELEASE 6.0)

RSI Software Products 9399-WHEELUG RSWHEEL USERS GUIDE

Motion Control 8720MC-RPS190BS SLAVE 460V 190AMP RPS

BC646MRE075 Logic PC & View Runtime (HRT) 75 I/O

IC300RTD100 4 channel RTD Inputs (Pt-100, Pt-200, Pt-500, Pt-1000), 18 bit

IC754VKI10MTD Starter Kit - 10" Monochrome QuickPanel View Intermediate, Touch, 24VDC

MTR-3T57-H-R-0-M-0 MTR series metric servo motor with resolver

PCI-8431/2 (RS485/RS422)

PFM-535I

IPC-606P3(B)

M470-2 D2778-C14

NOVA-7896R

01-03450-00

1492-LG4 IEC Term Blck 6.1x62x35.7mm Spr Clp

1494F-V4 Combination Starter Door Hardware

軟啟動器 3RW44362BC46

ET 200SP 6ES7132-6BF00-0BA0 DO 8x24VDC/0,5A 標準型，基座單元類型 A0

1585D-E4UBDE-20 1585D Ethernet Media Patchcord

1753-L32BBBP-8A GuardPLC 1800 Safety Controller

1794-IE4XOE2XT Flex XT 4 Input 2 Output Analog Module

194E-AA40EX-TN-PE 194E Load switch

2080-LC30-24QVB Micro830 24 I/O Controller

2090-CSWM1DF-18AA05 Kinetix 5m Smartlink Single Cable

20AC3P5A3AYNNEC0 PowerFlex 70 AC Drive 20A

GC646MPT001 Proficy GlobalCare Complete GE Compare

HE693RTD601 RTD Input, 6 channel, 3-wire, 0.125C res., -100 to +260C range (Pt-1 00)

IC610MDL101RR 24Vdc Sink Input (8 points)

IC647HSTSC750KM Server to Server Collector for Historian - Standard Server 750,000 Points (M4 Key)

IC660BBD021RR 24/48Vdc Sink I/O Block, 16 Circuit, Ph B

IC694PWR330 Power Supply 120/240 Vac 125 Vdc High Capacity

IC756WDN009E-99 DV Development Sys VB, Java, C++, C, English, Version 9.9

MicroLogix 1500/1769 System 1769-RTBN10 REPLACEMENT 10 PIN NEMA TERMINAL BLOCK (1 PER KIT)

PLC-5/1771 System 1771-P5K CONFORMALLY COATED,POWER SUPPLY,SLOT,8A,24V DC

Distributed I/O 1798-OB8E FLEXARMOR 8 POINT 24VDC SOURCING OUTPUT MODULE

Operator Interface 2711P-B6M5D PV PLUS 600 GRAYSCALE, KEY/TOUCH, RS232, DC PS

Support 9323-PA2SR SUPT REINSTATEMENT CONTRACT FOR 9323PA2S

Support 9358-PB30S SUPT RENEWAL CONTRACT FOR 9358PB30ENE

Support F1772-LZSERD FIRMWARE UPGRADE FOR 1772-LZ PLC2 PROCESSOR MODULE

RSI Software Products 9324-RLD6U7ITE RSLOGIX 5000 FULL TO PRO UPGRADE, ITALIAN

RSI Software Products 9305-RSVADFVCESE RSVIEW32 ACTIVE DISPLAY FLOAT. VIEW CLNT (SPANISH)

RSI Software Products 9301-PCI2000ETH APPLICOM PCI2000ETH ETHERNET INTERFACE 1 PROTOCOL

Motion Control 2094-BMP5 MODULE, AXIS, 400/460V, 4A INV.

A06B-0371-B577#7008 A1/3000 Servo Motor, 64K Serial Encoder

IC200UEC108 VersaMax Micro Expansion 8 point combination (4) 24VDC In, (4) 24VDC Output Source, SNK Out Expansion, 24DCPS

IC752CBT050RR Datapanel 320T CB (Color Base): 320x240 1/4 VGA Passive Color with 80386SX/40 PC processor. Analog touch screen with text, bitmaps, bar graphs, real time clock.

MTR-1N41-G-E-A-E-0RR Stepping Motor Nema42

NI 9239

PICOe-945GSE

CPCI-6830

S7005GM2NR-LE-WM

SB586PV

5055 144-793-003

A20B-0005-0611

1492-SPM3D040-N MCB Supplementary Protector 4 A

軟啟動器 3RW40281TB04

SIMATIC HMI 系列面板 6AV2123-2GA03-0AX0 KTP700 Basic DP 7 寸觸摸 + 按鍵

150-SD3NBR SMC-50 SOLID STATE MOTOR CONTROLLER 520A

1738-ADNX ArmorPoint DeviceNet Network Adaptor

1783-ZMS16TA ArmorStratix 5700 16 port managed switch

193-KA25 0.16-.25 A IEC Bimetallic Overload Relay

20-750-NEMA1-F7 PowerFlex 750 Frame 7 Conduit Box Kit

2090-CPWM7DF-16AF15 MP-Series 15m Length Power Cable

20AB022C3AYNANC0 PowerFlex 70 AC Drive 22 A at 7.5 Hp 20A

GA647IFPLDV00075 GCA iFIX Plus SCADA 75 I/O Dev

GP647IFCLNTCRO001 GCP iFIX iClient Read Only 5 PK Keyless Runtime Version

IC600BF811RR 5VTTL/10-50Vdc Input Module

IC647HSTCC30KM Calculation Collector for Historian - Standard Server 30000 Points (M4 Key)

IC647TBPC TBP:Texas Instrument Transparent Byte Protocol

IC693MDL930 Relay Output, Isolated, 4 Amp (8 Points)

IC756LDV001E-98 DV Development - Intel/Linux RedHat Addt'l User, English, Version 9.8

Pico Controllers 1760-CBL-INT300 INTRA-CBL 100M NONTERM

PLC-5/1771 System 1771-OGD TTL OUTPUT MODULE

Distributed I/O 1791-16BC BLOCK I/O, 24V DC, 32 POINT MODULE

Communications 1786-TNCJI4 CONTROLNET TNC COAXIAL CONN - ISOL JACK TO JACK

Operator Interface 2707-MVMNT MICROVIEW HAND-HELD PANEL MOUNT ADAPTER

Support 9701-VWSS100AS SUPT RENEWAL CONTRACT FOR 9701VWSS100AENE

Support 9324-RL0100PTR SUPT REINSTATEMENT CONTRACT FOR 9324RL0100PT

EtherNet/IP Products 1738-AENT ETHERNET ADAPTER

RSI Software Products 9301-2SE340ZHU3R RSVIEW32 RUNTIME 150-32K UPGRADE OUT-SUPT (ZH)

RSI Software Products 9356-PRO2450U2 UPGRADE: IN-SUPT: RSSQL STD.300 TO PROF.32000 TAG

Motion Control F-6100-R-H00AA BRUSHLESS MOTOR/ENCODER

4363-T 4363 WITH RS-232 OUTPUT

IC200ACC450 Simulator for VersaMax Nano. 6 Inputs

IC693MDL230LT 120 Vac Isolated Input (8 Points) (LT)

TRM-21006664 Connector, 7 Point 4.3/5/7.2 Amp S2K Extended Digital I/O (S1 Modules)

cDAQ-9132

PCA-6136

DM280520-CAN

SANGOMA A102

P4PE-X

Melec C-864

MIC-3082A

1492-SPM1D160-N MCB Supplementary Protector 16 A

通用型變頻器 6SE6 440-2UD33-0EB1 "30 KW,275 x 650 x 245"

電機啟動器 3VU13401TD00

150-C60NBR SMC-3 60A Smart Motor Controller

1692-ZG4444 24 V DC Electronic Circuit Protection

1771-IFE Analog Input Module

193-EC3DE E3 Plus 9-45 A Overload Relay

198-MT4 ModCenter IEC Selector Switch

2090-CPWM4DF-10AF15 MP-Series 15 m Length Power Cable

2094-ANCON-1 Kinetix 6000 Connector Set