PM511V16

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描述

PM511V16

良好的接地是保證PLC可靠工作的重要條件,可以避免偶然發(fā)生的電壓沖擊危害。PLC的接地線與機器的接地端相接,接地線的截面積應(yīng)不小于2mm2,接地電阻小于100Ω;如果要用擴展單元,其接地點應(yīng)與基本單元的接地點接在一起。為了抑制加在電源及輸入端、輸出端的干擾,應(yīng)給PLC接上專用地線,接地點應(yīng)與動力設(shè)備(如電機)的接地點分開;若達不到這種要求,也必須做到與其它設(shè)備公共接地,禁止與其它設(shè)備串連接地。接地點應(yīng)盡可能靠近PLC。在石油、化工、冶金等行業(yè)的某些系統(tǒng)中,要求控制裝置有極高的可靠性。如果控制系統(tǒng)發(fā)生故障,將會造成停產(chǎn)、原料大量浪費或設(shè)備損壞,給企業(yè)造成極大的經(jīng)濟損失。但是僅靠提高控制系統(tǒng)硬件的可靠性來滿足上述要求是遠遠不夠的,因為PLC本身可靠性的提高是有一定的限度。使用冗余系統(tǒng)或熱備用系統(tǒng)就能夠比較有效地解決上述問題。

為了使各位初學(xué)者更方便地了解PLC,本文對PLC的發(fā)展、基本結(jié)構(gòu)、配置、應(yīng)用等基本知識作一簡介。
? ? 在自動化控制領(lǐng)域,PLC是一種重要的控制設(shè)備。目前,世界上有200多廠家生產(chǎn)300多品種PLC產(chǎn)品,應(yīng)用在汽車(23%)、糧食加工(16.4%)、化學(xué)/制藥(14.6%)、金屬/礦山(11.5%)、紙漿/造紙(11.3%)等行業(yè)。為了使各位初學(xué)者更方便地了解PLC,本文對PLC的發(fā)展、基本結(jié)構(gòu)、配置、應(yīng)用等基本知識作一簡介,以期對各位網(wǎng)友有所幫助。? 在工業(yè)生產(chǎn)過程中,大量的開關(guān)量順序控制,它按照邏輯條件進行順序動作,并按照邏輯關(guān)系進行連鎖保護動作的控制,及大量離散量的數(shù)據(jù)采集。傳統(tǒng)上,這些功能是通過氣動或電氣控制系統(tǒng)來實現(xiàn)的。1968年美國GM(通用汽車)公司提出取代繼電氣控制裝置的要求,第二年,美國數(shù)字公司研制出了基于集成電路和電子技術(shù)的控制裝置,首次采用程序化的手段應(yīng)用于電氣控制,這就是第一代可編程序控制器,稱ProgrammableController(PC)。

產(chǎn)品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家

Busch SF 0170 C 2HO Vacuum Pump Germany

Rietschle Bora SAH 95 Side-Channel Blowers/Vacuum Pump

Varian Turbo V 301 Navigator Control Unit 9698973

MKS 153D-20-40-2 Control Valve

Varian Turbo-V 550 Vacuum Pump Controller

PFEIFFER BALZERS TPH 170 Turbo Vacuum Pump

welch vacuum pump 1376, REBUILT

Mercedes 98-99 S500 420 Central locking vacuum pump NEW

Airco Temescal 2″ Manual Gate Valve 2530 Edwards ASA N

Airco-Temescal Turbo Molecular Pump 514 Varian Edwards

UNIT UFC-1660, N2, SF6, Ar, lots of 3 used, as is

LeyBold Vacuum Pump D4B + Leybold AR4-8 Exhaust unit

Varian Triode Ion Pump 9115032 IonVac 911-5032

LEYBOLD TRIVAC D25B VACUUM PUMP

VACUUM MANOMETER MKS 628B02TBE1B (2 Torr) – REFURBISHED

MKS Instruments 153D-26356 3 inch Throttle Valve

MKS Instruments 153D-26356 3 inch Throttle Valve

MDC-Type GV-5000M-P 5 Inch ID Vacuum Gate Valve
One-day shipping available

Rebuilt Edwards E2M3 Vacuum Pump RV3: Hydro 110/220V
One-day shipping available

Edwards RV5 w/ RV-5 Rotary Vane Vacuum Pump

MITSUBISHI PLC A1S62PN, A1SHCPU, A1SX41, A1SX81, A1SY10

Vanes fit Becker T 3.25 Vacuum Pump T3.25, T3.25 DSK

Republic Regenerative Blower HRB102 ring side channel
Up to 58 cfm and 59″H2O (Pressure) or 40″H2O (Vacuum)
One-day shipping available

Enlarge
Republic Regenerative Blower HRB202 ring side channel
Up to 58 cfm and 98″H2O (Pressure) or 80″H2O (Vacuum)
One-day shipping available

Enlarge
CTI CRYOGENICS NETWORK INTERFACE, CTI MODEL 8113020G001

Vacuum Oven & Pump: Model 5831: Tested and working 100%

ROOTS RAI VACUUM PUMP/BLOWER 5 HP 94 J 94J 871-048-020

Varian 2.1 Cryo Compressor: Ex Condition

MILLIPORE intelliFlow DEVICE NET, N2, 50 ,400, 200 SCCM

TUTHILL #KTC-21B KINNY HIGH VACUUM PUMP

AURORA CENTRIFUGAL PUMP 344A BF 350 GPM 1750 RPM

Leybold D4B Rotary Vanes Pump Refurbished

Alcatel RSV600 Blower/Pump NEW!

DEWALT MK CORE BORE CORE DRILL UNIT W’ VACUUM PUMP

Edwards E2M2 Refurbished Vacuum Pump

New HVA 13210-0153R-2 ASM 50-122938A11

NovaTec Vacuum Pumps Vacuum Heads

Edwards E2M8 Rotary Vanes Pump Refurbished

Boc Edwards 8 RV8 Vane MASS Vacuum Rotary Pump used

Edwards E2M1.5 Refurbished Vacuum Pump

Becker VT 4.8 Vacuum Pump – Rebuilt
One-day shipping available

Becker VT 3.6 Vacuum Pump – Rebuilt
One-day shipping available

Pfeiffer Rotary Vane Vacuum Pump – DUO10M – Rebuilt
One-day shipping available

SCHMALZ Type SV 1025 B 000 IKZZ VACUUM PUMP

CTI Cryogenics Cryo Torr 8F High Vacuum Pump

AMAT 0226-97904 Throttle valve for Etch Chamber, New

Veltek T903X Vacuum Pump

New Nash Elmo G 200 Series Vacuum Pump/Blower
One-day shipping available

EDWARDS 8 TWO STAGE VACUUM PUMP- USED, GREAT CONDITION

EDWARDS 8 TWO STAGE VACUUM PUMP E2M8 W/ FORELINE TRAP

EDWARDS 8 TWO STAGE VACUUM PUMP E2M8 W/ FORELINE TRAP

Varian Turbo-V 70 Turbo Vacuum Pump V70 (Needs Rebuild)
One-day shipping available

Pfeiffer Balzers: TCP 121 Turbo Molecular Pump Cntlr.

ALCATEL 2002 1/5HP LAB SCIENTIFIC VACUUM PUMP 50 60HZ

Repair Kit fits Airtech Vacuum Pump: L250D

Lam 230-140148-308 ESC, 8 inch, look new in Box

Exhaust Filter Kit 472 / VC-900 Rietschle Beacon MRO

MKS Instruments 153D-26353 2 inch Throttle Valve

BIG JACK VACUUM BLOWER A412C A412 C 0404VT11P

Boc Edwards RV8 Vane Vacuum Rotary Pump

Oil Separator Filters fit Leybold SV.630B vacuum pump

X-Y-Z Placing Table with Vacuum Pump

1.5 HP Busch Vacuum Pump Displacement 20 CFM Item #8232

Oil Separator Kit fits Travaini PVL 200 vacuum pump

Oil Separator Kit fits Travaini PVL 150 vacuum pump

Oil Separator Kit fits Travaini PVL 100 vacuum pump

Pfeiffer TPH 5000 Turbo Vacuum Pump
Make offer or it’s going to the scrapyard! Last chance.

Edwards 1.5 LS36P Vacuum Pump

BIG BLOCK CHEVY MOROSO 3 VANE VACUUM PUMP COMPLETE KIT

2 CTI 8043274G120 10″ Cryo Line w 8112463G100 PowerLine
One-day shipping available

KINNEY VACUUM KDH-80 VACUUM PUMP 5HP

Edwards Vacuum Interface Module A52844410 new

Complete Filter Kit to fit Rietschle Pump: CLFD 141

SPX Robinair Tools A/C 10 CFM Vacuum Pump: 15120A

EDWARDS E2M18 Vacuum Pump
Edwards E2M18 Two Stage Vacuum Pump

ALCATEL 2021i VACUUM PUMP, REBUILT

Ebara 50×20 Dry Vacuum Pump package

CTI ON-BOARD NETWORK TERMINAL CONNECTOR

PUMP CONTROLLER ALCATEL CFV900 TURBO – USED

CUSTOM SS VACUUM / PRESSURE TANK 2.8 CF

Varian Turbo V-250 Pump Controller NIB

BECKER VT 3.25 VACUUM PUMP

Varian Turbo-V 550 Vacuum Pump Controller

Leybold Heraeus Turbovac 3500 Turbo Vacuum Pump

Gast Reginair R6335A-2 – very lightly used 10 hours

Sargent -Welch MDL 1399 Vacuum Pump

Edwards RV8 (RV-8) Vacuum Pump

Nash AHF-120 Ductile Iron Vacuum Pump AHF120

Anver VB-4 Vacuum Pump Blower w/ Transformer Box

Leybold NT-20 Turbo Pump Controller, Vacuum Pump,Endura

Alcatel Turbo Pump Controller ACT 1000 T

Vanes fit Becker DTLF500 Vacuum Pump PN 901373 (6)

SUTORBILT CAT. NO. 5ML BLOWER NEW

HY VAC PRODUCTS HY VAC 14 VACUUM PUMP

BUSCH SV1040C0001NXX VACUUM PUMP – REBUILT
One-day shipping available

BUSCH SV1016C000IHVXR VACUUM PUMP – REBUILT
One-day shipping available

Thomas 5 HP rotary vane vacuum pump, 80 CFM

Vane Set: Busch RC-0400 Vacuum Pump RC0400 722.454.00

VacuuBrand ME851 Quad Diaphragm Vacuum Pump 115V

Pneumofore UVD40 Rotary Vane Vacuum Pump 27CFM

FRANKLIN ELETRIC/ALCATEL VACUUM PUMP
One-day shipping available

MKS Instruments Exhaust Throttle Valve 253A-12804 =R

MKS Instruments Exhaust Throttle Valve 253A-12836 =R

LEYBOLD D8B TRIVAC TWO STAGE ROTARY VANE VACUUM PUMP

Pfeiffer Balzers TPD-020 Turbo-Drag High Vacuum Pump

MKS i-Baratron DMA Digital Capacitance Manometer 13T

PRECISION VAC.PUMP DDC310/FRANKLIN ELEC. 3/4 HP MOTOR

Granville-Phill?ips: 307005/06 Vacuum Controller

Granville-Phill?ips: 307 Vacuum Guage Controller w/ P/S

NORGREN VMS-2110-24 SMART PUMP VACUUM 24 VDC VMS-2110

Savant VLP200 Dual Stage Rotary Vane Vacuum Pump NR

Leybold D60AC Mechanical Two-Stage Vacuum Pump

Edwards DIFFSTAK 63mm Diffusion Pump, w / Gasket

Alcatel ADS 830B Vacuum Pump

NUVAC NDP 181V Vacuum Pump

MDS Matrx 1 HP Dental Vacuum Pump Cartridge – 230V
Rebuilt; 1yr Warranty *$100 discount w/ core exchange*

Spencer Regenerative Blower 2.1hp 160cfm 76″p 64″ vacuu

EDWARDS E2M30, VACUUM PUMP

Varian 936-60 Vacuum Pump Leak Detector parts unit diff

MDC High Vacuum Research Chamber CFF Varian Huntington

Vane Set Fits Becker 15 HP DVTL-360 dry vacuum pump

AIR DIMENSIONS EXPLOSION PROOF VACUUM PUMP R222-BT-EA1

Savant VLP120 Rotary Vane Vacuum Pump

Savant Edwards RV 5 VLP120 Vacuum Pump

Savant VLP120 Rotary Vane Vacuum Pump

OMEGA BLOWER 41G
Bare Blower

TOKYO ELECTRON LIMITED TEL GAS BOX TERMINATOR 3M81-0198

Moroso 22640-K 3 Vane Vacuum Pump System SB Chevy

Moroso 22640-K1 3 Vane Vacuum Pump System BB Chevy

Huntington Labs O.D. 8″, I.D. 5.75″ Flange Tee
One-day shipping available

Welch 7 Direct Torr V Vacuum Pump-Model 8920

Leybold Turbotronik NT-150/360 Turbo Pump Controller

Alcatel Roughing Pump Model #2004A

PFEIFFER TURBO VACUUM PUMP MODEL TURBOVAC 450

PFEIFFER TURBO VACUUM PUMP MODEL TURBOVAC 450

Duo Seal 1 HP Model 1376 Vacuum Pump

NAPCO model 5831 vacuum oven with 2.5 cfm vac pump (new

Vane Set fits Hill-Rom RC-0630 Vacuum Pump RC0630

Filter kit fits Leybold SV630 Vacuum Pump

Filter kit fits Leybold SV630F Vacuum Pump

Filter kit fits Leybold SV750 Vacuum Pump

Refurbished Elmo-Rietschle VLT 15 – w/motor – 3 Phase
Manufacturer Refurbished Rotary Vane Pump
One-day shipping available

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Republic Regenerative Blower HRB301 ring side channel
Up to 141 cfm and 71″H2O (Pressure) or 63″H2O (Vacuum)
One-day shipping available

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Filter replaces Ingersoll Rand Part Number 32025441

BOC Edwards, Seiko Seiki, STP-301 Turbo Pump Controller
OEM New, with certification and manual, in OEM Box

LEYBOLD TRIVAC ROTARY VANE VACUUM PUMP TYPE D10E T1

VacuuBrand ME851 Quad Diaphragm Vacuum Pump

WELCH DUO-SEAL VACUUM PUMP MODEL 1376

Republic Regenerative Blower HRB400 ring side channel
Up to 141 cfm and 118″H2O (Pressure) or 102″H2O(Vacuum?)
One-day shipping available

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Rotary Vane Oil Vacuum Pump with belt WSVP-9030 NIB

MKS Exhaust Throttle Valve 683B-24883 working

MKS Instruments Exhaust Throttle Valve 683B-23388

Phasetronics P1229 Driver, AMAT 0190-05682, 2 unit

Rietschle Vacuum/Pressure Pump 3PH Typ-SKK38203(11?)

Werie Rietschle Vacuum Pump TLV 25

VAT 4″ Inner Diameter pneumatic vacuum gatevalve

TYLAN 2900M series MFC lots of 3, and TN2900 MFC, USED

Varian DS102 DS 102 Dual Stage Rotary Vane Vacuum Pump

AURORA CENTRIFUGAL PUMP 344A BF 350 GPM 1750 RPM

Leybold D4A Refurbished Vacuum Pump

Pfeiffer/Balzer?s TPU-050 Turbomolecular Vacuum pump

DeviceNet Unit MFC UFC-8565, H2 2L, SIH4 30CC lots of 2

Unit MFC UFC-8561C, H2 100CC lots of 2 used

AMAT 0010-13445 MONITOR BASE ASSY P5000 used

AMAT 0010-70386 MODULE MFG, VGA monitor base, used

IN USA NDIR OPTI-sense 5000 lots of 2, used,

Leybold Sogevac SV 16 vacuum pump

UNIT UFC-8160, NF3, SiH4, PH3, lots of 3, used

DeLaval vacuum pump DVP 1600

SAVANT VLP120 VALUPUMP ROTARY VANE DUAL STG VACUUM PUMP

NEW KINNEY HIGH VACUUM PUMP 115 VAC SINGLE PHASE KC8C

Appion TEZ8 8CFM Vacuum Pump NEW
One-day shipping available

NEW VAT ?High Vacuum? Gate Valve – 7.875″ Opening

Appion TEZ8 8CFM Vacuum Pump NEW
One-day shipping available

Vacuubrand ME 2SI ME2SI Diaphragm Vacuum Pump

Moroso Vacuum Pump 22643
FAST Shipping – 90 Day Return Policy – HUGE Selection

Vanes replace Dekker 3301020 for Dekker RVD040L

Welch 1397 DuoSeal Vacuum Pump, 1397B

Cardone Industries 90-1309 Vacuum Pump

Rebuild Kit for Busch RA 0255D pump PN 993.908.868

Rebuild Kit for Busch RA 0305D 0305 pump PN 993.908.868

Filter & vanes for Becker 10 HP VTLF-250 vacuum pump

Welch 1402 Vacuum Pump: 110v, Ex Condition

Leybold Heraeus Vacuum Pump Trivac D30AC Cat#898148

NEW Stokes Vacuum 150 CFM Oil Mist Separator
New Style Element – Includes all piping…

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NORGREN MODEL VMS-2110-120 SMART PUMP 120V VMS-2110 NEW

EBARA 50×20 Dry Vacuum Pump 3600 L/M System

ALCATEL TURBOMOLECULAR PUMP 5081 – REFURBISHED

Repair Kit fits Airtech Vacuum Pump: L160D

Rebuild Kit for Busch 0302D 302D Vacuum Pump 10 HP

Rebuild Kit for Busch 0250D 250D Vacuum Pump 10 HP

Repair Kit for Busch 0250 C Vacuum Pump 10 HP 0250C

MVS 3/4 Horse Power Vacuum Pump Replacement Cartridge

Rebuild Kit for Busch 0250B Vacuum Pump 10 HP

Rebuild Kit for Busch 0250 C Vacuum Pump 10 HP 250C

MILKING MACHINE SYSTEM W/ VACUUM PUMP PORTABLE NEW
Complete systems for goats & sheep available on request

MILKING MACHINE SYSTEM + VACUUM PUMP PORTABLE

Pfeiffer Balzers TPH 110 Turbo Molecular Vacuum Pump
One-day shipping available

Aerospace AC-VP3CK-SBC Complete Vacuum Pump System JEGS

Aerospace AC-VP3CK-BBC Vacuum Pump System JEGS

Aerospace AC-VP3CK-SBC Small Block Chevy Vacuum Pump

Aerospace AC-VP3CK-BBC Big Block Chevy Vacuum Pump Kit

Aerospace AC-VP3CK-SBF3 Small Block Ford Vacuum Pump

Aerospace AC-VP3CK-SBF4 Small Block Ford Vacuum Pump

Aerospace AC-VP3CK-BBF3 Big Block Ford Vacuum Pump Kit

Aerospace AC-VP3CK-BBF4 Big Block Ford Vacuum Pump Kit

Aerospace AC-VP3CK-BBCHR Big Block Mopar Vacuum Pump

Aerospace Components Vacuum Pump Kit Small Block Chevy

Aerospace Components Vacuum Pump Kit For Big Block Ford

Aerospace Components Vacuum Pump Kit Small Block Ford

Aerospace Components Vacuum Pump Kit Big Block Chrysler

Aerospace Vacuum Pump Kit Big Block Ford 3 Bolt Crank

Aerospace Components Vacuum Pump Kit Small Block Ford

Aerospace Components Vacuum Pump Kit Big Block Chevy

Republic Regenerative Blower HRB300 ring side channel
Up to 141 cfm and 79″H2O (Pressure) or 67″H2O (Vacuum)
One-day shipping available

Enlarge
Nor-Cal Intellisys IQ Series Throttle Valve 030626-1

VAT MONOVAT Slit Valve 0210X-BA24-AXN1 working

Pfeiffer Vacuum Turbopump Power Supply TPS 201

MKS Baratron Manometer 626A-24807 new 1350-00255

Ebara Turbopump Controller 305W-A untested

Vanes fit Rietschle KTA140 Vacuum Pump pn 526627 ( 6 )

Vane Set: Becker VTLF-250 vacuum pump VLTF 250 VTLF250

TURBO PUMP CONTROLLER CFV900 TURBO – PN 306 / 700

VAT Remote Pressure Controller 600BS-29NN-0002?/013

Ebara Vacuum Turbopump Cable PWM-3.5m new 0620-02285

BOC EDWARDS U20000480 IM VACUUM PUMP INTERFACE MODULE

BOC EDWARDS A52844410 IM VACUUM PUMP INTERFACE MODULE

專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當(dāng)天順豐發(fā)貨!
主營:本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學(xué)習(xí)編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數(shù)等條件,把或、與、非關(guān)系理順;
3、進而練習(xí)整數(shù)運算、實數(shù)運算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學(xué)會一種至于其它的學(xué)習(xí)起來也就簡單了。