皮帶運(yùn)輸機(jī)控制可采用PLC控制與傳統(tǒng)采用繼電器控制兩種控制方法，兩種控制方法的比較如下：  1) 方式：繼電器的控制是采用硬件接線實(shí)現(xiàn)的，是利用繼電器機(jī)械觸點(diǎn)的串聯(lián)或并聯(lián)及延時(shí)繼電器的滯后動作等組合形成控制邏輯，只能完成既定的邏輯控制。PLC采用存儲邏輯，其控制邏輯是以程序方式存儲在內(nèi)存中，要改變控制邏輯，只需改變程序即可，稱軟接線。    2) 速度：繼電器控制邏輯是依靠觸點(diǎn)的機(jī)械動作實(shí)現(xiàn)控制，工作頻率低，毫秒級，機(jī)械觸點(diǎn)有抖動現(xiàn)象。PLC是由程序指令控制半導(dǎo)體電路來實(shí)現(xiàn)控制，速度快，微秒級，嚴(yán)格同步，無抖動。    3) 控制：繼電器控制系統(tǒng)是靠時(shí)間繼電器的滯后動作實(shí)現(xiàn)延時(shí)控制，而時(shí)間繼電器定時(shí)精度不高，受環(huán)境影響大，調(diào)整時(shí)間困難。PLC用半導(dǎo)體集成電路作定時(shí)器，時(shí)鐘脈沖由晶體振蕩器產(chǎn)生，精度高，調(diào)整時(shí)間方便，不受環(huán)境影響。    通過對兩種控制方式的比較，PLC控制方式控制效果比較好，可實(shí)現(xiàn)皮帶運(yùn)輸機(jī)的自動化；而采用繼電器控制方式，這種控制方式還停留在人工操作，效果也就不是很明顯。為此采用PLC控制皮帶運(yùn)輸機(jī)是一個(gè)很好的選擇。  而PLC控制方式又分集中控制和分散控制兩塊。集中控制就是一臺多個(gè)I/O點(diǎn)PLC控制多臺設(shè)備，實(shí)行的是一對多的控制方式；分散控制是多臺PLC，而每臺的PLC的I/O點(diǎn)相對來說就比較少，實(shí)現(xiàn)的是多對多的控制方式。

多年專業(yè)從事大型進(jìn)口系統(tǒng)備件銷售。主營品牌Foxboro，Tricon，Ovation，Motorola，Xycom，ABB，Allen-Bradley，Schneider，Siemens，GE Fanuc,Yaskawa，Woodward等進(jìn)口自動化系統(tǒng)備件銷售及系統(tǒng)集成的*，對各大自動化品牌產(chǎn)品有著強(qiáng)大的優(yōu)勢，同時(shí)配備優(yōu)秀的工程團(tuán)隊(duì)。

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Allen Bradley Servo Motor - MPL-B4540F-MJ24AA

Allen Bradley Servo Motor MPL-B4540F-MJ22AA

Allen Bradley MPL-B4540F-MJ22AA Kinetix Inverter Duty AC Servo Motor *Tested*

From Canada

Allen Bradley MPL-B4540F-SJ24AA Servo Motor

Allen Bradley MPL-B4540F-MJ22AA Inverter Duty AC Servo Motor 3.0Kw Ser/A*Tested*

From Canada

Allen-Bradley Servo Moto MPL-B580F-MJ24AA NIB (#3024)

NEW ALLEN BRADLEY SERVO MOTOR MPL B4540F-MK24AA SERIES AB 460V

Allen Bradley Servo Motor - MPL-B4540F-SJ22AA - in Germany

From Germany

Allen Bradley Servo Motor - MPL-B4530F-MJ22AA - in Germany

From Germany

Allen Bradley MPL-B430P-MJ24AA Servo Motor (#3242)

ALLEN BRADLEY SERVO MOTOR MPL B680F-MJ24AA

Allen Bradley Servo Motor MPL-B4540F-MJ22AA

Allen Bradley Servo Motor - MPL-B4540F-MJ24AA

Allen Bradley Kinetix AC Servo Motor MPL-B4540F-MJ22AA EXCELLENT!

Allen Bradley Servo Motor MPL-B4540F-MJ22AA

From Mexico

Allen Bradley MPL-B4540F-MJ22AA Kinetix Inverter Duty AC Servo Motor *Tested*

From Canada

Allen Bradley MPL-B4540F-MJ22AA Inverter Duty AC Servo Motor 3.0Kw Ser/A*Tested*

From Canada

ALLEN BRADLEY MPL-B4540F-MJ22AA *USED*

ALLEN BRADLEY MPL-B4540F-MJ22AA USPP MPLB4540FMJ22AA

New Allen Bradley Servo Motor MPL-B680F-SJ74AA Series A

ALLEN BRADLEY SERVO MOTOR MPL-B560F-MJ22A SER A MP SERIES 7066-05-4202 NEW

SIEMENS 3RF2350-1AA24 NSFP 3RF23501AA24

FURNAS ELECTRIC CO 3RF2-350-1AA45 USPP 3RF23501AA45

SIEMENS 3RF2-390-3AA45 NSFP 3RF23903AA45

NEW SIEMENS 3RF2330-1AA45 Semiconductor Contactor SIRIUS

From China

SIEMENS 3RF2-090-1AA04 NSPP 3RF20901AA04

FURNAS ELECTRIC CO 3RF2-030-1AA04 NSPP 3RF20301AA04

FURNAS ELECTRIC CO 3RF2-020-1AA02 USPP 3RF20201AA02

FURNAS ELECTRIC CO 3RF2-020-1AA02 NSFP 3RF20201AA02

FURNAS ELECTRIC CO 3RF2350-1BA26 NSFP 3RF23501BA26

Siemens Simatic 3RF2120-1AA02 3RF21201AA02 NIB

NAMCO SNAP-LOCK LIMIT SWITCH EA700-80000 ~ NEW

Namco EA700-80000 Snap Lock Limit Switch

NIB NAMCO EA700-80000 LIMIT SWITCH EA70080000

EA70080000 NEW NAMCO EA700 80000 DANAHER CONTROLS FREE SHIPPING

NAMCO EA700-80000 NSFP EA70080000

Namco EA700-70100 EA70070100 Limit Switch NIOB

Namco EA700-10926 EA70010926 Limit Switch NIOB

Namco EA700-20926 EA70020926 Limit Switch NIOB

NAMCO EA700-76700 OR 700-76700 LIMIT SWITCH NIB

New Namco Snap-Lock Limit Switch EA700-50100 EA70050100

NAMCO EA700-85001 SNAP LOCK LIMIT SWITCH

NAMCO EA700-80001 SNAP LOCK LIMIT SWITCH

NAMCO EA700-70012 NSFP EA70070012

NAMCO EA700-20100 USPP EA70020100

NAMCO EA700-13400 USPP EA70013400

Pack Driver Stepping Motor Driver AK-BX530M AKBX530M

From Singapore

PACK DRIVER STEPPER DRIVE AK-BX910M YPMD1 NEW

Pack Driver AK - BX52M HDC3 Stepping Motor Driver

From Singapore

Yaskawa Pack Driver AK-BX410M Stepping Motor Driver Controller AKBX410M/ Warrant

PACK DRIVER AK-BX56M STEPPING MOTOR DRIVER DUAL SPEED

Pack Driver AK-Bx52M-HDC3 Stepping Driver for PK543-B

From Singapore

Pack Driver AK-BX530M AKBX530M Stepping Motor Driver

From Philippines

Pack Driver AK-BX551P V /AK-BX410M / AK-BX511 (V3)

From Singapore

PACK DRIVER STEPPING MOTOR DRIVER AK-BX55M1

Pack Driver AK-BX910M AKBX910M Stepping Motor Driver

From Philippines

NEW OPTO 22 SNAP-ODC5R

Opto 22 SNAP-ODC5R 4 Channel Isolated NEW

NEW OPTO 22 SNAP I/O SNAP-ODC5R 4 CHANNEL ISOLATED 5VDC

OPTO 22 SNAP-ODC5R USPP SNAPODC5R

OPTO 22 SNAP-ODC5R NSFP SNAPODC5R

OPTO 22 ODC-5R NSFP ODC5R

Opto22 SNAP-ODC5SNK SNAP Digital Output Module

OPTO 22 ODC-5R NSPP ODC5R

OPTO 22 ODC-5R FNFP ODC5R

OPTO 22 ODC-5R USPP ODC5R

OPTO 22 RACK I/O MODULES SNAP AIVRMS AIV AOV ODC5R ODC5SRC SNAPB3000 SNAPB12MC

OPTO 22 G4-ODC5R USPP G4ODC5R

OPTO 22 G4-ODC5R5 USPP G4ODC5R5

OPTO 22 G4-ODC5R NSFP G4ODC5R

OPTO 22 G4-ODC5R5 NSPP G4ODC5R5

Opto 22 SNAP-AIV-I 2 Channel Isolated NEW

NEW OPTO 22 SNAP ANALOG VOLTAGE INPUT MODULE ±10,±5 VDC SNAP-AIV-I

NEW OPTO 22 SNAP-AIV-8 ANALOG INPUT MODULE 8 CHANNEL FOR SNAP PAC SYSTEM

SNAP-AIV OPTO 22 -10VDC TO +10VDC ANALOG INPUT MODULE

OPTO 22 SNAP ANALOG Part No. SNAP AIV 2 Channel Voltage Input

Opto 22 SNAP-AIV 2 Channel Analog Module

OPTO 22 SNAP-AIV NSFP SNAPAIV

OPTO 22 SNAP-AIV-8 NSFP SNAPAIV8

OPTO 22 SNAP-AIV-8 USPP SNAPAIV8

OPTO 22 RACK I/O MODULES SNAP ANALOG AITM AIV IDC5 FAST SNAPB3000 SNAPB12MC

OPTO 22 RACK I/O MODULES SNAP AIVRMS AIV AOV ODC5R ODC5SRC SNAPB3000 SNAPB12MC

OPTO 22 SNAP-AIV-72 USPP SNAPAIV72

ALFA-LAVAL LKB53A-6700-4A-E-S

NEW ALFA LAVAL LKB53 VALVE REPAIR KIT

Alfa Laval LKB53A-6000T BUTTERFLY VALVE 2-1/2"

ALFA LAVAL LKB53A-6000-1 1/2-E-316L *USED*

ALFA LAVAL LKB51A-2-1/2-E-S-G NSFP LKB51A212ESG

ALPHA LAVAL / TRI CLOVER LKB53A-6100TKT-3E-316L-R170236 3" S/S SANITARY VALVE

Mitsubishi Drive MDS-C1-V1-3535

From Canada

MITSUBISHI ELECTRIC MDS-B-V2-3535 SERVO DRIVE UNIT

Mitsubishi MDS-DH-V2-8040 Servo Drive Mazak

Mitsubishi Servo Drive MDS-B-V2-2020 MDSBV22020 Tested!

Mitsubishi Servo Drive MDS-C1-V2-2020 MDSC1V22020 Looks New!

Mitsubishi MELDAS SERVO DRIVE MDS A V2 2010 Mazak CNC

OFFER & WIN MITSUBISHI MDS-C1-V2-0303 Servo Drive Unit

From Poland

MITSUBISHI MDS-C1-V2-2010 XLT Fast Shpping

From Korea, South

Mitsubishi MAZAK SERVO Drive MDS B V2 3520 MDSBV23520 repair refurbishing

Mitsubishi MDS-C1-V2-3535 2 Axis AC Servo Drive 30 Day Warranty

NEW LIEBERT 4C13121G4S TEMP/HUMID SENSOR

LIEBERT 4C13121G-4 USPP 4C13121G4

NEW LIEBERT 4C13121G4S TEMP/HUMID SENSOR

? LIEBERT 4C12151G BOARD ? ? GREAT CONDITION ?

USED Liebert 4D14571G1 Assy Control Board PCB

Liebert 4C14651G 1 Rev.03 Fused Circuit Board Card

Liebert 4C13521G Mini Mate Control Circuit Board

LIEBERT 4C13451G USPP 4C13451G

LIEBERT 4C12681G USPP 4C12681G

LIEBERT 4C12151G USPP 4C12151G

NEW LIEBERT 4C13121G4S TEMP/HUMID SENSOR

LIEBERT 4C13121G-4 USPP 4C13121G4

NEW LIEBERT 4C13121G4S TEMP/HUMID SENSOR

Alfa Laval SC05-20B 976-020-001, Used, 976020001, Fast Shipping

From Sweden

Alfa Laval Valve *New* SRC-W-3A-3-7-20-J

10197 New-No Box, Alfa Laval 883-1551-020 Lot-20 O-Ring

ALFA LAVAL,SRC-W-3A-2.5-9-20H W/HD SPRING,PLUG VALVE

39783 New In box, Alfa Laval Seperation Inc 11742 Hex Sleeve Outlet, 20mm ID

ALFA LAVAL SRC-GC-3A-1.5-77-20 STAINLESS PNEUMATIC PLUG VALVE 1-4/10-1-1/2 75658

ALFA LAVAL SRC-GC-3A-1.5-77-20 STAINLESS PNEUMATIC PLUG VALVE 1-4/10-1-1/2 75657

Alfa Laval 316L 1 1/2" Tri Clamp Valve W/ 3/4" Opening #1-316L-RA20MAX-CWP150

ALFA-LAVAL SMU 2A SPEED MONITORING UNIT 551-131-20

Alfa Laval/Saunders Butterfly Valve MXMP112TC 20"

From Canada

NOR NT8E06AB 07 OC48 STM16

NOR NT8E06AB RLS 04

From Israel

NOR NT8E06AB FDN2400 RING DEMUX. Refurbished

NOR NT4T06AB DMS-10 NTWK EMPQAET1AA

Nor #NT8D06AB, Power Supply, NEW IN THE BOX!

NOR NETWORKS NTN430AA (HECI:SNC3MB06AB) EXPRESS DS1/VT MAPPER

Nor #NT8D06AB, Power Supply, Perfect condition, used, from working unit

Nor Meridian Power Supply Part# NT8D06AB Used

Nor NT2X06AB DMS-100 POWER CONVERTER COMM

Nor Meridian OC48 STM16 NT8E06AB 07 SNPQBR62AC RING DEMUX

NOR NT8E06AB 07 OC48 STM16

NOR NT8E06AB RLS 04

From Israel

NOR NT8E06AB FDN2400 RING DEMUX. Refurbished

NOR NT4T06AB DMS-10 NTWK EMPQAET1AA

Nor #NT8D06AB, Power Supply, NEW IN THE BOX!

NOR NETWORKS NTN430AA (HECI:SNC3MB06AB) EXPRESS DS1/VT MAPPER

Nor #NT8D06AB, Power Supply, Perfect condition, used, from working unit

Nor Meridian Power Supply Part# NT8D06AB Used

Nor NT2X06AB DMS-100 POWER CONVERTER COMM

Nor Meridian OC48 STM16 NT8E06AB 07 SNPQBR62AC RING DEMUX

NEW Honeywell Burner Control EC7890A1011 EC7890 A 1011

HONEYWELL EC7885-A-1011 BURNER CONTROL EC7885 A 1011 **FREE SHIPPING USA**

Honeywell Flame Burner Control EC7885-A-1011

HONEYWELL RM 7890 A 1031 BURNER CONTROLLER

Honeywell Burner Control RM7890 D 1004 RM7890D1004 Q7800A1005 14-Day Warranty

HoneyWell RELAY MODULE RM7890 A 1015 RECTIFICATION FLAME AMPLIFIER Q7800 A 1005

NEW HONEYWELL PRESSURE REGULATOR ASSEMBLY V5106A 1011 YG-24

Honeywell Fan Center R8239A 1011

HONEYWELL BURNER CONTROL EC7823A 1004 NEW

From Canada

(7989) Honeywell Burner Control RM7890A-1015 w/ R7847A1015 Flame Amplifier (7989

Honeywell V5106A 1011 Pressure Regulator NOS

Cognex ISM1400-00 // Series 1400 In Sight Micro 825-0007-2R // 821-0002-5R 59871

Cognex ISM1400-00 // 1400 Series In Sight Micro 825-0007-1R // 821-0002-1R 59871

Cognex ISM1400-00 // 1400 Series In Sight Micro 825-0007-1R // 821-0002-1R CPics

Cognex ISM1400-00 comes w/ 25mm/F1.4 Edmund Optics Lens  59871 

COGNEX CAMERA ISM1403-C00

Cognex In-Sight Micro ISM1020-00 828-0003-1R New In Box

Cognex ISM1020-00 825-0002-1R A In-Sight Vision Camera 1020 Micro System NIB

Dynalco ECT-107 K00 Pre-Cat Temp Probe ECT-107-U-K-1/4-180-C-C 1400 deg F

NOS SUZUKI ARTIC CAT BRUSH HOLDER GSXR1100 GSF1200 VS1400 TIGERSHARK MONTE CARLO

Cummins Signature / ISM Features Manual 3665320-00

Cognex In-Sight Micro 1050 ISM1050-00 825-0002-1R A 821-0003-1R A Vision Camera

Tasman 1400 Router 00-1400-02-256

TASMAN 00-1400-02-256 Tasman 1400 Router

COGNEX INDUSTRIAL VISION CAMERA ISM1020-00 W/ FUJINON LENSE HF35HA-1B

CUTLER HAMMER Coil Repl. Kit for V201KRCJ Sz.4 Vacuum Cont NIBFS

From Canada

NEW CUTLER HAMMER A201K3CA Size 3 Contactor 230v 460v 575v 50HP Coil 480V

WESTINGHOUSE SIZE 4 A201K4CA motor contactor 480v coil

Westinghouse WH Size Sz 4 A201K4CAG Motor Starter 110V

Westinghouse WH Size Sz 4 A201K4CX Contactor 135A 480V

V201K4CJ CUTLER HAMMER VACUUM CONTACTOR

135 AMP 480 VAC. VACUUM CONTACTOR 100 H.P @ 480 VAC.

Allen Bradley 150-F201NCD Motor Control SMCFlex 75-150HP 460V ! NEW !

From Canada

Westinghouse A201K1BA Size 1 120 V Coil Contactor

ABB S201-K5 Circuit Breaker 5 Amp 400V ! NEW !

From Canada

WESTINGHOUSE MOTOR CONTROL CAT#A201K5CAZ1 SIZE 5 3PH 600V 300A *FREE SHIPPING*

ABB S201-C10 Circuit Breaker 10 Amp 277V ! WOW !

From Canada

Shimaden SR24 SR24-1Y-0090 SR241Y0090 Controller

From Philippines

0008 DAMPFÖL & REINIGUNGSMIT SR24 SR 24 SR-24 200ccm Grundpreis 3,77€/100ml

From Germany

0185 DAMPFÖL & REINIGUNGSMIT SR24 SR 24 SR-24 100ccm Grundpreis 4,99 €/100ml

From Germany

Thomson SR-24 SR24 Shaft Support Rail

BELIMO TFB24-SR Spring Return Damper Actuator 24V 18IN/LB

Belimo TR24-SR-T US Actuator & Valve B211B+TR24-SR-T US B211B1+TR24-SR-T US

Belimo TR24-SR US Actuator B208+TR24-SR US B208S1

BELIMO SM24A-SR 24V ac/dc 20Nm Actuator

From United Kingdom

Belimo TR24-SR US Actuator B209+TR24-SR US B209S1

Belimo TR24-SR US Actuator B207+TR24-SR US B207S1

Mitsubishi AC Servo Motor HC-UFS43 400W (free shipping)

From Korea, South

NEW! MITSUBISHI Melservo HC-MFS43B-K 400W AC Servo Motor

Mitsubishi HC-KFS43K Servo Motor - Excellent Condition

Mitsubishi MR-J2S-40B & HC-KFS43K←AC Servo Drive& Motor 400W (free shipping)

From Korea, South

MITSUBISHI AC SERVO MOTOR HC-KFS43K

From Canada

MITSUBISHI * MR-J2S-40B & HC-KFS43K * AC Servo Drive & Motor 400W KEY Set #a17

From Korea, South

Mitsubishi HC-KF43K-S3 AC Servo Motor Free Ship

From Hong Kong

MITSUBISHI / AC SERVO MOTOR / HC-UFS43

From Korea, South

MITSUBISHI MR-J2S-40B 400W SERVO DRIVER, MOTOR HC-UFS43 TESTED/EXCELLENT WORKING

From Korea, South

New Mitsubishi HC-KFS43K

From China

Speedtronic MKIV DS3800HPIB 1G1E WITH DOA WARRANTY/GUARANTEE

From Australia

Speedtronic MKIV DS3800HPIB 1F1D WITH DOA WARRANTY/GUARANTEE 1E1C + 1G1E ALSO

From Australia

GE FANUC DS3800NMEA1G1E DS3800NMEA1G DS3800NME DS3800

From Canada

GE FANUC DS3800HSCD1G1E DS3800HSCD DS3800HS DS3800

From Canada

GENERAL ELECTRIC DS3800HSCD1G1E USPP DS3800HSCD1G1E

GENERAL ELECTRIC DS3800HCMA1E1G USPP DS3800HCMA1E1G

GENERAL ELECTRIC DS3800HSCA1G1E USPP DS3800HSCA1G1E

GENERAL ELECTRIC DS3800NPSE1E1G USPP DS3800NPSE1E1G

GENERAL ELECTRIC DS3800NMEA1G1E USPP DS3800NMEA1G1E

General Electric DS3800HSQD1G1E Circuit Board DS3800DSQD1A1A Used

GENERAL ELECTRIC DS3800HSCD1J1G BOARD DS3800HSCD

Morion Double oven ultra precision OCXO MV89A

From China

Morion Double oven ultra precision OCXO MV89A,year 2004/2005 MANUFACTURING

From China

Morion Double oven ultra precision OCXO MV89A,year 2006 or 2007 MANUFACTURED

From China

FEI FE-180 FE180-CO2-12V-Z19-10MHZ OCXO ,OVEN CONTROLED CRYSTAL OSCILLATOR

From China

Morion Double oven ultra precision OCXO 2x10-12 mv89a

From China

OCXO MV89A XO00281M-CT-MV89 10.0 MHZ Morion Double oven ultra precision 08 09

From Hong Kong

MORION MV197 10Mhz OCXO OSCILLATOR,SQU?ARE WAVE SC-CUT +12V

From China

DS-180MV STUDIO FLASH

From Hong Kong

Brüel&Kjaer ZR004 LOG Potentiometer 25dB 10 mV - 180 mV

From Germany

HO SCALE: MV PRODUCTS LENS 180: HEADLIGHT 15 1/2"

MIYACHI WELTOUCH WELDER WELD CONTROL CONTROLLER KEYPAD CY-210A CY210A ME-1752C

MIYACHI CY-210A CY210A WELTOUCH WELDER CONTROLLER KEYPAD 100V AC R12298

MIYACHI CY-210A-90 USPP CY210A90

NEW! MIYACHI WELTOUCH CY-210AK CONSTANT CURRENT WELDING CONTROL CY210

Miyachi CY-210B Display-Welding Controller CY210B

MIYACHI WELTOUCH CY-210BK CONSTANT CURRENT WELDING CONTROL CY210

NEW!! MIYACHI WELTOUCH CY-210AK CONSTANT CURRENT WELDING CONTROL CY210

MIYACHI CY-210B SPOT WELD CONTROLLER USED

MIYACHI CY-210B-00-10 CONSTANT CURRENT WELDING CONTROL , new

From Lithuania

MIYACHI CY-210B-00-10 CONSTANT CURRENT WELDING CONTROL , used

From Lithuania

ASEA BROWN BOVERI EH210C-Y NSPP EH210CY

QUANTUM CY43A013 USPP CY43A013

ALLEN BRADLEY 72A81 600V 60CY 550V 50CY COIL