產(chǎn)品詳情
主要由系統(tǒng)內(nèi)部元器件及電路間的相互電磁輻射產(chǎn)生,如邏輯電路相互輻射及其對模擬電路的影響,模擬地與邏輯地的相互影響及元器件間的相互不匹配使用等。這都屬于PLC制造廠對系統(tǒng)內(nèi)部進(jìn)行電磁兼容設(shè)計的內(nèi)容,比較復(fù)雜,作為應(yīng)用部門是無法改變,可不必過多考慮,但要選擇具有較多應(yīng)用實(shí)績或經(jīng)過考驗的系統(tǒng)。
三、PLC控制系統(tǒng)工程應(yīng)用的抗干擾設(shè)計
為了保證系統(tǒng)在工業(yè)電磁環(huán)境中免受或減少內(nèi)外電磁干擾,必須從設(shè)計階段開始便采取三個方面措施:干擾源;切斷或衰減電磁干擾的傳播途徑;提高裝置和系統(tǒng)的抗干擾能力。這三點(diǎn)就是電磁干擾的基本原則。
PLC控制系統(tǒng)的抗干擾是一個系統(tǒng)工程,要求制造單位設(shè)計生產(chǎn)出具有較強(qiáng)抗干擾能力的產(chǎn)品,且有賴于使用部門在工程設(shè)計、安裝施工和運(yùn)行維護(hù)中予以考慮,并結(jié)合具有情況進(jìn)行綜合設(shè)計,才能保證系統(tǒng)的電磁兼容性和運(yùn)行可靠性。進(jìn)行具體工程的抗干擾設(shè)計時,應(yīng)主要以下兩個方面。
Applied Materials AMAT 1/2" Valve Assembly, 0190-06120
Applied Materials AMAT 30 SLM Gas Filter, 4020-00084
Applied Materials AMAT Pressure Switch, 1270-01622
Applied Materials AMAT Bellows Assembly, 0040-96169
Applied Materials AMAT Fuseb, 200A, 0910-00269
Applied Materials AMAT Lift Pin Bellows, 0040-36033
Applied Materials AMAT Valve Assembly, 0010-39665
Applied Materials AMAT In-Line Gas Filter, 4020-00080
Applied Materials AMAT Vacuum Switch, 0090-36126
Applied Materials AMAT In-Line Gas Filter, 4020-01059
Applied Materials AMAT Surface Mount Valve, 3870-00538
Applied Materials AMAT 0021-09104 Cathode Lower Liner
Applied Materials AMAT 0021-10223 Chamber Upper Liner
Applied Materials AMAT Pressure Switch, 1270-00485
APPLIED MATERIALS INC. VANE, (MRS)P19500 AMI
APPLIED MATERIALS INC. HOLDER (MRS) P19500
Applied Materials AMAT Fujikin Valve, 3870-01603
Applied Materials AMAT Ceramic Filter, 4020-01199
Applied Materials AMAT K1S Cap, 4060-00157
APPLIED MATERIALS INC. KIT, CLIP P19500-AMI (NVNG CL
Applied Materials AMAT Endpoint Window, 0200-35292
Applied Materials Applied Ceramics 91-01593 Focus Ring
Applied Materials AMAT Modified Bellows, 0020-11931
Applied Materials AMAT Centura Flow Switch, 0190-01186
Applied Materials AMAT Fujikin Valve, 3870-01767
Applied Materials AMAT Shut Off Valve, 3870-03787
Applied Materials AMAT Humphrey Valve, 3870-00490
Applied Materials AMAT P5000 Flow Assembly, 0010-01548
Applied Materials AMAT Pressure Switch, 0090-01361
Applied Materials AMAT Fujikin Valve, 3870-01881
Applied Materials AMAT PVDF 2-Way DI Valve, 3870-00524
Applied Materials AMAT 1/4" BSPP Plug, 3300-92164
Applied Materials AMAT DPS Poly Window, 0200-35334
Applied Materials AMAT Pressure Switch, 0090-01357
Applied Materials AMAT EP Relief Valve, 3870-02744
AMAT Applied Materials Heat Exchanger 0010-70027
Applied Materials AMAT Fujikin Valve, 3870-00310
Applied Materials AMAT PEEK Valve Syringe, 3870-00520
Applied Materials AMAT Valve Manifold, 0190-08742
Applied Materials AMAT Pisco Control Valve, 220690102
Applied Materials AMAT Humphrey Valve, 3870-01430
Applied Materials AMAT Valve Drive Assembly, 0010-10009
Applied Materials AMAT Humphrey Valve, 3870-01633
Applied Materials AMAT 3-Way Lock-Out Valve, 3870-02656
Applied Materials AMAT Filter Assembly, 0010-02892
Applied Materials AMAT SWLL Feedthrough, 0040-03508
Applied Materials AMAT Bearing, 3060-01186
Applied Materials AMAT Fujikin Valve Assy, 3870-01993
Applied Materials AMAT Susceptor, 0200-01947
Applied Materials AMAT Pressure Switch, 1270-00140
Applied Materials AMAT Flow Meter/Switch, 0190-13843
AMAT Applied Materials RF Cable 0620-00499 new
Applied Materials AMAT Ball Bearing, 3060-00286
NEW APPLIED MATERIALS AMAT 0242-01051 CHAMBER RETROFIT
Applied Materials AMAT Hex-Coax Connector, 0720-04552
Applied Materials 0200-00638 Quartz EMAX Cover Ring
Applied Materials AMAT Recessed Window Endpt 0200-09657
Applied Materials AMAT Adaptor Connector, 0720-03239
Applied Materials AMAT 1/2" Tubing, 20', 0190-77389
Applied Materials AMAT RS-232 to RS-485, 0730-01050
Applied Materials AMAT Rotating Feedthrough, 0720-02672
Applied Materials 0100-09251 Seriplex PCB SPX-MUXADIO01
Applied Materials AMAT Fujikin Valve Assy, 3870-02221
Applied Materials AMAT Pressure Gauge, 0190-14247
Applied Materials AMAT Valve Regulator Assy, 0190-24421
Applied Materials AMAT Koyo Bearing, 0190-00987
NEW APPLIED MATERIALS AMAT 3300-02263 FTG RLF VALVE
Applied Materials AMAT SW Photohelic, 1270-00303
Applied Materials AMAT Kitz Valve Assy, 3870-00537
APPLIED MATERIALS ELECTRODE, GRAPHITE, ROUND
Applied Materials AMAT Flex Helium Hose, 3400-01118
Applied Materials AMAT Coupling, 3300-05207
Applied Materials AMAT Ball Bearing Bushing, 3140-01064
Applied Materials AMAT "Y" Reducer, 3300-05059
APPLIED MATERIALS INC. SHEATH,RPSC, HDP-CVD, 0200-18074
Applied Materials AMAT Connector, 0720-02708
Applied Materials AMAT Pressure Transducer, 1350-00435
Applied Materials AMAT Male Elbow, 3300-91522
Applied Materials Gas Distribution Plate
Applied Materials AMAT Coupling, 3300-05208
Applied Materials AMAT Nor-Cal Valve Assy, 3870-00724
APPLIED MATERIALS COVER, QUARTZ 6" POLY, 0200-00043
AMAT Applied Materials A.C. Window Control 0090-00045
APPLIED MATERIALS FINGER SHORT HOLLOW GRIPPER- AMI
APPLIED MATERIALS FINGER LONG HOLLOW GRIPPER -AMI (SLO
APPLIED MATERIALS SCREEN SLIDE ENTRY 9500XR - AMI
Applied Materials AMAT Adaptor, 3300-03220
Applied Materials AMAT Hose Assembly, 3400-01461
NEW APPLIED MATERIALS 0140-77284 CABLE, D1 IO, HARNESS
Applied Materials AMAT Custon Elbow, 0015-35222
APPLIED MATERIALS SUPPORT BAR, CATHODE DIAM. 16.5
Applied Materials AMAT PEEK 1/8" Y, 3300-07450
Applied Materials AMAT Elbow, 3300-05844
Applied Materials AMAT Accusync, 0246-00040
Applied Materials AMAT Flow Switch Assembly, 0150-09623