DDO01

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選擇深圳長欣,選擇放心,售后無憂
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描述

DDO01

提高讀入PLC現(xiàn)場信號的可靠性還可利用控制系統(tǒng)自身特點(diǎn),利用信號之間關(guān)系來判斷信號的可信程度。如進(jìn)行液位控制,由于儲罐的尺寸是已知的,進(jìn)液或出液的閥門開度和壓力是已知的,在一定時間里罐內(nèi)液體變化高度大約在什么范圍是知道的,如果這時液位計送給PLC的數(shù)據(jù)和估算液位高度相差較大,判斷可能是液位計故障,通過故障報警系統(tǒng)通知操作人員檢查該液位計。又如各儲罐有上下液位極限保護(hù),當(dāng)開關(guān)動作時發(fā)出信號給PLC,這個信號是否真實(shí)可靠,在程序設(shè)計時我們將這信號和該罐液位計信號對比,如果液位計讀數(shù)也在極限位置,說明該信號是真實(shí)的;如果液位計讀數(shù)不在極限位置,判斷可能是液位極限開關(guān)故障或傳送信號線路故障,同樣通過報警系統(tǒng)通知操作人員處理該故障。由于在程序設(shè)計時采用了上述方法,大大提高了輸入信號的可靠。

當(dāng)現(xiàn)場的信號準(zhǔn)確地輸入給PLC后,PLC執(zhí)行程序,將結(jié)果通過執(zhí)行機(jī)構(gòu)對現(xiàn)場裝置進(jìn)行調(diào)節(jié)、控制。怎樣保證執(zhí)行機(jī)構(gòu)按控制要求工作,當(dāng)執(zhí)行機(jī)構(gòu)沒有按要求工作,怎樣發(fā)現(xiàn)故障?我們采取以下措施:當(dāng)負(fù)載由接觸器控制時,啟動或停止這類負(fù)載轉(zhuǎn)為對接觸器線圈控制,啟動時接觸器是否可靠吸合,停止時接觸器是否可靠釋放,這是我們關(guān)心的。
X0為接觸器動作條件,Y0為控制線圈輸出,X1為引回到PLC輸入端的接觸器輔助常開觸點(diǎn),定時器定時時間大于接觸器動作時間。R0為設(shè)定的故障位,R0為ON表示有故障,做報警處理;R0為OFF表示無故障。故障具有記憶功能,由故障復(fù)位按鈕清除。當(dāng)開啟或關(guān)閉電動閥門時,根據(jù)閥門開啟、關(guān)閉時間不同,設(shè)置延時時間,經(jīng)過延時檢測開到位或關(guān)到位信號,如果這些信號不能按時準(zhǔn)確返回給PLC,說明閥可能有故障,做閥故障報警處理。程序設(shè)計如圖3b所示。X2為閥門開啟條件,Y1為控制閥動作輸出,定時器定時時間大于閥開啟到位時間,X3為閥到位返回信號,R1為閥故障位。

產(chǎn)品承諾:
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)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(jī)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(jìn)口品牌。 專業(yè)銷售進(jìn)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(jìn)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(shí)力庫存商家

Stokes 72″ Diameter Vacuum Metallizer

Nash CL9001 CL9002 vacuum pump

Zyra Research ZRI-XP-1×1 Abatement System Used

Zyra Research ZRI-XP-1×1 Abatement System Used

Nash 904R2 904R1 vacuum pump

Head/Lobe for Nash HP liquid ring compressor, 316 SS

Three Zones Tube Furnace with Vacuum Pump for CVD

Edwards Booster Pump

Nash CL3001 CL3002 stainless vacuum pump

Nelmor 60 Hp Granulator, Bin, Vacuum Pump, Conveyor

1989 Vac Con V290TR Vacuum Jet Rodder Truck, Good cond.

Seiko Edwards STPA2203 Turbo Pump Refurbished Unused

SIHI LPH 85353 Liquid Ring Vacuum Pump 1600 CFM 28″ Hg

Patterson Kelley Stainless Steel Vacuum Dryer

Patterson Kelley Stainless Steel Vacuum Dryer

Patterson Kelley Stainless Steel Vacuum Dryer

Osaka Turbo Molecular Pump TG2003M Vacuum

GODWIN DRI PRIME 8″ ELECTRIC VACUUM PUMP **75 HP

Stokes 1721 Vacuum System, 615 blower w/ 212H-11 pump

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ATMI Ecosys CDO 862 Abatement System Used

ATMI Ecosys Vector Ultra 3000 Abatement System Used

Edwards iGX600N Dry Vacuum Pump Refurbished Unused

Edwards iGX600 Dry Vacuum Pump Refurbished Unused

AM&D Vacumizer 100, Ametek 7.5HP, 480V Vacuum Pump Good

MKS Portable Vacuum Calibration System PVS-6 Baratron

NASH CL9002 VACCUM PUMP TEST #85S0182 CAST IRON POS 1

Vactronic PECVD Plasmatherm Etch Tool Oxford Novellus

Stokes Microvac 612-30 Vacuum Pump, 612 CFM, 20HP Mint!

PreVac GDF-950 50hp Liquid Ring Rotary Vacuum Pump NICE

Pfeiffer Balzers, Gas and Vacuum Station, Working

NASH CL9002 VACCUM PUMP TEST # 7041 CAST IRON NASH

Busch 1600 , RC1600 RC-1600 vacuum pump

Busch RA0630 Vacuum Pump, Reconditioned to OEM Specs

NASH CL9001 VACCUM PUMP TEST # SW6835 CAST IRON POSNR 3

Nash CL9001 CL9002 vacuum pump

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Nice 1140 hour 25hp Sullair Rotary Vacuum Pump RSVS-12

Oil Rotary Piston Vacuum Pump WSDR 15K NIB

Roots Vacuum Pump FRU2880 NIB

NEW BOC Edwards iF-1800 (iF1800) Dry Vacuum Pump

Edwards BOC iL600 Dry Semiconductor Vacuum Pump

Edwards BOC iL600N Dry Semiconductor Vacuum Pump

Leybold Oerlikon TurboVac MAG W 1300 C Turbo Pump
Expedited shipping available

Edwards iL600N Vacuum Dry Pump Rebuilt

Industrial Vacuum System

Ebara AAS70WN Refurbished

Leybold MAG W 1300 Turbo Pump; DRIVE digital Controller
Sold tested as set with cables and a one year warranty.

Seiko Seiki STP-H2000C Vacuum Turbo Pump Rebuilt

Leybold MAG W 2200 Turbo Pump

Leybold MAG 2000 C Turbo Pump

PFEIFFER DRY VACUUM PUMP PK T11 906 UNIDRY 050-4NC

Varian TV801 (ISO) Turbomolecular Vacuum Pump 790.0 LPS

CL3002 NASH VACUUM PUMP, 200 HP

CL3002 NASH VACUUM PUMP, 200 HP

CL3003 NASH VACUUM PUMP, 200 HP

CL3003 NASH VACUUM PUMP, 200 HP

TEL ETCH RF generator rack and Turbo controller rack

Ebara AA200W Dry Pump-6600 hrs Demo Condition Warranty

Edwards BOC iLs70 Dry Semiconductor Vacuum Pump

Quincy QRDT 20 HP Oil-less Air Compressor Model#QRDT-30

Edwards BOC iL70N Dry Semiconductor Vacuum Pump

vacuum pump truck

Body for Nash 1256C liquid ring compressor, SS

Busch WV-1000 Reconditioned to O.E.M. Specs
1 Year Warranty Included

Busch RA0400 Vacuum Pump, Reconditioned to OEM specs.
1 Year Warranty Included

SIEMENS VACUUM PUMP, 20 HP, S/S

New Spencer turbine Vacuum

Knoll VRF 150/750 Vacuum Rotations Coolant Pump Filter

Varian Vacuum Ion Pump 912-7022

Edwards BOC iL70 Dry Semiconductor Vacuum Pump

NASH H12A VACUUM PUMP TEST #01T1C56 POS NR1 CAST IRON

RROTARY VANE OIL VACUUM PUMP WIITH MOTOR MVP-540 NIB

CTI Cryogenics 8112729G001 On-Board 4F Cryopump NEW
One-day shipping available

Edwards Vacuum Turbopump STP-XH2603P new 3620-00368

Edwards STP-A1603P Vacuum Turbopump AMAT 3620-00470 new

Remanufactured Nash SC-7 Vacuum Pump Complete Skid

Edwards IPX 500 Dry Vacuum Pump Rebuilt: IPX500 wrnty

Nash CL2001 CL2002 vacuum pump

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Dekker 20 HP Vacuum Pump New 2006 VMX0303KA1-00

Pfeiffer TMH-1000M C Turbo Pump

Busch Cobra Dry Screw Vacuum pump Industrial CNC

NASH HYTOR VACUUM PUMP SIZE CL4002 RPM 360

3-Zone Lab Digital Vacuum Drying Oven with Vacuum Pump

Leybold TMP-1000C Turbo Pump TurboVac 1000 C – 85539
One-day shipping available

Leybold Turbovac 1000 C TMP-1000C Turbo Pump 600 Hz
One-day shipping available

Busch 10 HP Monovac vacuum pump 113 cfm

Aerzen GMb 16F13 Vaccum Pump and Leesons 50hp motor

200 cfm 15 hp Huckepak vacuum pump model 433-002

Stokes Microvac Pennwalt 412H-11 Vacuum Pump, Rebuilt
New 10 HP Motor and Solenoid, 300 CFM, 4 in. Inlet

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Shimadzu Turbopump TMP-3403LMTC rebuilt 3620-00486

Pfeiffer Vacuum Turbopump TMH 1001P rebuilt

Oerlikon Leybold TMP 1100C Turbo Vacuum Pump Rebuilt
1 Year Warranty; Leybold Factory Rebuild
One-day shipping available

Vacuum pump, single stage liquid ring
Single Stage Liquid Ring

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Kinney KT300 Rotary Piston Vacuum Pump

Edwards iQDP80 Dry Semiconductor Vacuum Pump iQMB 1200

Body for Nash 1251 liquid ring compressor, SS

LEYBOLD TURBO PUMP 1000C PN A971300407 – REFURBISHED

BOC EDWARDS iQDP80/QMB250 DRY VACUUM PUMP AND BOOSTER
VACUUM PUMP SYSTEM

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EDWARDS QDP40 DRY VACUUM PUMP BRAND NEW ( NEVER USED )

AMERICAN VACUUM COMPANY VACUUM PUMP MODEL 4206

CVC Diffusion Vacuum Pump – 35″ Inner Diameter

AIR VACUUM PUMP

Used- Rietschle Oil Seal Vacuum Pump, type VWZ402-16M,

Used- Rietschle Oil Seal Vacuum Pump, type VWZ402-16M,

Used- Rietschle Oil Seal Vacuum Pump, type VWZ402-16M,

Used- Rietschle Oil Seal Vacuum Pump, type VWZ402-16M,

Used- Rietschle Oil Seal Vacuum Pump, type VWZ402-16M,

Used: Rietschle oil seal vacuum pump. Type VWZ402-15M.

Used: Rietschle oil seal vacuum pump. Type VWZ402-16M.

Seiko Edwards STPH2000C Turbo Cable Controller Used

Aerzen GMb 16F13 Vaccum Pump and Leesons 50hp motor

4 used AE Advanced Energy HFV 8000 RF Generator

HIBON PUMPING SYSTEM T10651 -PN: 79995.26 -REFURBISHED

Varian Vacuum Ion Pump Reference Plate Ass’bly C0401130

Varian Vacuum Ion Pump Lens Ring P/N: C0312002 Unused!

Varian Vacuum Ion Pump Gun Valve Top Plate C0311001

Varian Vacuum Ion Pump Housing Gun Valve P/N: C0304007

Varian Vacuum Ion Pump Gun Lens P/N: C0306000

Pfeiffer Balzers TPU-1500 Plasma Turbo Pump TPH Vacuum
One-day shipping available

Bell Jar Vacuum Furnace Chamber Quartz Graphite Pump

Holmes HV2000 Blower Vacuum Pump 1400.0 CFM

77cf Vacuum Chamber over 48″ with 46 Ports wide SS !!!!

Siva M-60 Solvent Recovery Unit With Vacuum Pump

VACUUM TEST PUMP TRAILER MOUNTED AIRVAC

Varian TV1001 Navigator Turbomolecular Pump NEW
One-day shipping available

BOC Edwards IH600 Dry Vacuum Pump With display terminal

Varian High Vacuum HS-32 Diffusion Pump

BUSCH MINK / MERLIN DRY CLAW VACUUM & COMPRESSOR *NEW*

Used- Stokes Microvac Rotary Piston Vacuum Pump, model

Used- Stokes Microvac Rotary Piston Vacuum Pump, model

Used- Stokes Microvac Rotary Piston Vacuum Pump, model

Used- Stokes Microvac Rotary Piston Vacuum Pump, model

Alcatel R601B / 2063+ Roughing Pump and Roots Blower Co

Republic Regenerative Blower HRB1502 ring side channel
Up to 776 cfm and 189″H2O (Pressure) or 189″H2O(Vacuum?)

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Rotary Vane Oil Vacuum Pump with Motor MVP-432 NIB

Oil Rotary Piston Vacuum Pump WSSR 7.5K

Roots Vacuum Pump FRU1440 NIB

EC150L NASH VACUUM PUMP SYSTEM

EIM275 EDWARDS VACUUM PUMP, 8.5 KW

EIM275 EDWARDS VACUUM PUMP, 8.5 KW

EIM275 EDWARDS VACUUM PUMP, 8.5 KW

EIM275 EDWARDS VACUUM PUMP, 8.5 KW

10 HP rotary vane vacuum pump by Busch

USED:Kinney liquid ring vacuum pump, model 125-KSS, ski

Perkin-Elmer Ion Pump Vacuum Chamber Bell Jar System

Leybold/Oerliko?n TMP 1100C turbo pump ” REFURBISHED ”

LAMSON 100HP BLOWER

Holmes HV1000 Blower Vacuum Pump 700.0 CFM

Holmes HV1250 Blower Vacuum Pump 875.0 CFM

OSAKA VACUUM HELICALGROOVED PUMP, Model TS443BW

Stainless Steel/Copper Baffle for Diffusion Pump 35″ASA

Busch Panda Blower WV1000

NASH DUPLEX VACUUM PUMP PACKAGE

LEYBOLD-HERAEUS WA2000 ROOTS VACUUM PUMP – REFURBISHED

VACU-VEST #20 VACUUM INVESTMENT MIXER WITH BUSCH PUMP

Edwards BOC L70 Dry Semiconductor Vacuum Pump

Leybold TRIVAC D65BCS / WS501 Roughing Pump and Roots B

Tuthill vacuum air blower pump compressor 7018-21L2++++

Oerlikon Leybold TW 701 Vacuum Turbo Pump
Rebuilt by Oerlikon Leybold with a one year warranty.

Edwards iQDP80 Dry Semiconductor Vacuum Pump w iQMB-500

APPLIED MATERIALS, AMAT 0010-21668 PVD magnet. New

NASH TCM3 VACUUM PUMP 30 HP

BOC Edwards Vacuum EPX 180N Dry Pump

EDWARDS EXP TURBO SYSTEM

Edwards Vacuum EPX 180L Dry Pump 400V, 6 month Warranty

New Leybold Turbovac 1000C vacuum pump with controller
incl. Leybold Turbotronik NT1000/1500 VH includes cable

Balzers DIFF500A Diffusion Pump 500mm (20″)

Rotor for Nash HP-8 liquid ring compressor, SS

BOC Edwards Dry Vacuum Pump iQDP80 with QMB500 Rebuilt

BOC Edwards Dry Vacuum Pump iQDP80 with QMB1200 Rebuilt

NASH CL3001 VACUUM PUMP 3000 CFM 10″ HG BELT DRIVE

Republic Regenerative Blower HRB1402 ring side channel
Up to 776 cfm and 118″H2O (Pressure) or 134″H2O(Vacuum?)

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LPHA75340 SIHI VACUUM PUMP, 50 HP

LPHA75340 SIHI VACUUM PUMP, 50 HP

Edwards iQDP80 Dry Vacuum Pump Rebuilt
One year parts and labor warranty.

USED:Vacuum pump system consisting of: Travaini liquid

USED: Nash liquid ring vacuum pump, model CL-1002, cast

USED: Nash liquid ring vacuum pump, model CL-2002, cast

Leybold Heraeus – Ruvac Vacuum pump – New Mod. WS2000

Holmes HV700 Blower Vacuum Pump 470.0 CFM

USED: SIHI vacuum pump, model LPHA75330. Capacity 610 c

Leybold Heraus Rotary Vane/Roots Pumping System

Edwards iQDP80 Dry Semiconductor Vacuum Pump w iQMB 250

Lobe for Nash 904 L liquid ring pump, Iron

Leybold Inficon Turbovac 1000C Turbo Pump REPAIR
One-day shipping available

Edwards iQDP80 Vacuum Pump QMB250 Blower Rebuilt

EDWARDS QDP80 DRY SEMICONDUCTOR DRYSTAR VACUUM PUMP+CTL

Leybold Turbovac 1000 C Vacuum Turbopump rebuilt

Toyota T600 Vacuum Dry Pump 0240-52730 new

Toyota T600 Vacuum Dry Pump new 0240-52729

CL1002 NASH VACUUM PUMP, 60 HP

Used: Nash vacuum pump, type CL1003. Approximately 330

Used: Nash vacuum pump, type CL1003, Approximately 330

Used: Nash vacuum pump, type CL1003, Approximately 330

EDWARDS QDP80 DRY SEMICONDUCTOR DRYSTAR VACUUM PUMP+CL

Super Vac Vacuum Sealer (does not include pump)

Busch Cobra DS-80 Dry Pump – Used

3 GS Kinney KT-150 Vacuum Pump Rotary Piston

NuCond-Edwards iQDP80/QMB500 Vacuum Dry Pump-iQDP 80-NR

SET OF CONTROLLER+POMP?E TURBO+CABLES – REFURBISHED

Leybold TW 700 Vacuum Turbo Pump: Factory Rebuild
Rebuilt by Leybold with a one year warranty.
One-day shipping available

CTI 8120992G001 Series 14 On-Board Water Pump Vacuum

Leybold Trivac Rotary Vane Vacuum Pump D65BCS NEW

Shimadzu Vacuum Turbopump TMP 2001-LME new

AHF80SS NASH VACUUM PUMP, 5 HP

2BE1253 SIEMENS VACUUM PUMP C/S 125 HP

2BE1253 SIEMENS VACUUM PUMP C/S 125 HP

TC5 NASH VACUUM PUMP, 25 HP

H7 NASH VACUUM PUMP, S/S

Used- Busch Single Stage Cobra Dry Screw Vacuum Pump, m

Used- Busch Single Stage Cobra Dry Screw Vacuum Pump, m

Roots Vacuum Blower – Model 1442 PGS-HVB

EBARA A10S Dry Vacuum Pump, Surplus New: 1yr warranty

Varian TV 551 MacroTorr Turbo Vacuum Pump Rebuilt
Varian Factory Rebuild with Six Month Warranty
One-day shipping available

EBARA ET-2500WS Turbo Vacuum Pump, 2500 WS, Surplus New
One-day shipping available

Edwards iQDP40 Vacuum Dry Pump 1yr warranty

Used: Ingersoll-Dress?er multistage ring vacuum pump, mo

Used: Sihi Vacuum pump, size 3×2, carbon steel, 6 stage

DUPLEX HORIZONTAL TANK MOUNTED VACUUM PUMP SYSTEM

Oerlikon Leybold E250 Vacuum Pump E-250 Rebuilt

Stokes 212H-11 Piston Vacuum Pump Rebuilt 212: yr wrnty

Stokes 212 Rotary Piston Vacuum Pump 150.0 CFM

Pfeiffer Balzers Duo 35 Dual Stage Rotary Vane pump

412H-10 STOKES VACUUM PUMP, 15 HP

412H-20 STOKES VACUUM PUMP, 10 HP

GENTIX Q-PIX COLONY PICKER WITH VACUUM PUMP MANUALS

Used- Busch Single Stage Cobra Dry Screw Vacuum Pump, M

Used- Busch Single Stage Cobra Dry Screw Vacuum Pump, M

Used- Busch Single Stage Cobra Dry Screw Vacuum Pump, M

USED: Edwards two stage rotary vane vacuum pump, model

Leybold/Oerliko?n TMP 1000C Turbo Pump ” REFURBISHED ”

DeMarco MaxVac Vacuum Pump

15 HP. Vac-U-Max System, Roots Blower, Item #8231

CTI On-board Waterpump P/N 8120647G001 – Unused!

NEW AERZEN POSITIVE DISPLACEMENT BLOWER GMB-15.10

BOC EDWARDS IPX100/ IPX 100 DRY VACUUM PUMP A409-02-973

BOC EDWARDS IPX100/ IPX 100 DRY VACUUM PUMP A409-02-973

Leybold SV300 Rotary Vane Vacuum Pump 200.0 CFM

Leybold TW701 Turbomolecular Vacuum Pump 680.0 LPS

Leybold WSLF1001 Roots Blower Vacuum Pump 707.0 CFM

EDWARDS EH2600 ROOTS VACUUM PUMP PN: A307-51-946

Republic Regenerative Blower HRB1302 ring side channel
Up to 776 cfm and 87″H2O (Pressure) or 99″H2O(Vacuum)

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Rotary Vane Oil Vacuum Pump with Motor MVP-324 NIB

Edwards Drystar QDP80 Vacuum Pump QMB 250F REBUILT

Duroflow Positive Displacement Vacuum 40 HP 4.5 X 12

Leybold Vacuum Turbopump Turbovac 1000C rebuilt

Adixen/Alcatel Vacuum ATH 1000 M Turbo Pump Tested Good
One-day shipping available

Edwards EXT 250M Vacuum Turbo Pump 250: Surplus New

Oerlikon Leybold WS-1001 Vacuum Blower Rebuilt P 1 yr

EBARA TURBO PUMP PN ET300W S-A TYPE1 -REFURBISHED

Busch duplex Vacuum Pump System R5 0100 TWO 5HP PUMPS!

A52247 Inficon UL500 Dry Leybold, Anest Iwata Vac Pump

Leybold Turbovac 1000C Turbo Vacuum Pump 6″ ASA

Leybold TMP341MCT Turbomolecular Vacuum Pump 250.0 LPS

Leybold Turbovac 340M Turbomolecular Vacuum Pump 250.0

Leybold WS1001 Roots Blower Vacuum Pump 707.0 CFM

Varian V1000HT Turbomolecular Vacuum Pump 950.0 LPS

Varian V1000HT Vacuum Pump Controller

Osaka Vacuum TG1810 TG-1810 Compound Molecular Pump

Edwards iQDP40 Dry Semiconductor Vacuum Pump w iQMB 250

Edwards iQDP80 Dry Semiconductor Vacuum Pump

EDWARDS IL70N, DRY VACUUM PUMP / PUMPING SYSTEM

Shimadzu Vacuum Turbopump TMP-3203LMC-K1 working

Shimadzu Vacuum Turbopump TMP-3203LMEC-K1 working

Shimadzu Turbopump TMP-3403LMC working 3620-00454

Shimadzu Vacuum Turbopump TMP-3403LMTC working

Shimadzu Vacuum Turbopump TMP-3403LMC working

Novatec Vacuum Power Unit with Cyclone recycling pump

Oil Rotary Piston Vacuum Pump WSSR 4.5K NIB

ALCATEL ROOTS VACUUM PUMP RSV1000 – REFURBISHED

Roots Vacuum Pump FRU720 NIB

Vacuubrand Rc6 Chemistry-hybri?d Vacuum Pump, Brandtech

Republic Regenerative Blower HRB1212 ring side channel
Up to 530 cfm and 157″H2O (Pressure) or 138″H2O(Vacuum?)

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TRAVAINI VACUUM PUMP TRO-300V-1A 20HP W/RELIANCE MOTOR

NP408 FINDER VACUUM PUMP, 5 HP

H-8 NASH VACUUM PUMP, 50 HP

200 CFM BUSCH HUCKEPACK VACUUM PUMP

Alcatel/Adixen ATP 400 Vacuum Turbo Pump: Surplus New

Oerlikon Leybold WSU-501 Vacuum Blower Rebuilt, 1yrwrty

專業(yè)銷售進(jìn)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(shí)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(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
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(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)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(yàn)證,比如變頻器+電機(jī)+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(jī)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。