SIEMENS 6DR2004-1A

來(lái)自電源的干擾 
實(shí)踐證明,因電源引入的干擾造成DCS控制系統(tǒng)故障的情況很多,筆者在某工程調(diào)試中遇到過(guò),后換隔離性能更高的DCS電源,問(wèn)題才得到解決。 
DCS系統(tǒng)的正常供電電源均由電網(wǎng)供電。
由于電網(wǎng)覆蓋范圍廣,它將受到所有空間電磁干擾而在線路上感應(yīng)電壓和電路。尤其是電網(wǎng)內(nèi)部的變化,入開(kāi)關(guān)操作浪涌、大型電力設(shè)備起停、交直流傳動(dòng)裝置引起的諧波、電網(wǎng)短路暫態(tài)沖擊等,都通過(guò)輸電線路傳到電源原邊。DCS電源通常采用隔離電源,但其機(jī)構(gòu)及制造工藝因素使其隔離性并不理想。實(shí)際上,由于分布參數(shù)特別是分布電容的存在,隔離是不可能的。 

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8pc Allen Bradley Switch Legend Plate HAND FOOT 30mm size

3pc Square D Thermal Overload Heater B0.57

2pc NUMATICS 1FPRN8 PNEUMATIC FLOW CONTROL VALVE 1/4"TUBE 1/8"NPT

Marathon Fuse Block R30A3SP 250v 30amp R Class Fuse

Woodhead Sensor Cord Set 40974 3 Wire

Allen Bradley 800MS-X0D1 Push Button

Balluff Sensor Cord Set C04AEL00VY050M

Omron PLC Output Unit C200H-OD215

Allen Bradley Ice Cube Relay 700-HB32A24 Ser E 24vac coil

2pc Allen Bradley 195-FA04 Aux. Contact Block

Automation Direct GCX1139 Mushroom Head Push Button

Siemens Circuit Breaker 5SX21D10 230 / 400 vac 10amp 1 pole

Siemens Circuit Breaker 5SX21C13 230 / 400 vac 13amp 1 pole

Honeywell Plug In type relay 8950 R4222F 1000

Allen Bradley Fiber Optic Cable 99-800

Allen Bradley 1771-OW DC Selectable Contact Output

Cutler Hammer Proximity Sensor E57LAL18A2SA 35-250v

emecanique 30mm Push Button ZB3-BA16

Leviton MicroDim Remote 17775

Banner Mini-Beam Sensor Emitter SMA31EQD

emecanique Overload Adder Block LA7-D3064

3pc Buss Low Peak Yellow Fuse LPJ-40SP

Cutler Hammer Front Pole Contact Cartridge D26MPF N.O.

Cutler Hammer Type M Relay Adder Block D23MF 4 Pole N.O.

9pcs Utsunomiya Cello-Lite Fuses JG1 15 / 20 / 30 amp

Automation Direct GCX1134 Mushroom Head Push Button

20pc Buss ABC Fuses ABC-1/2

2pc Sylvania Auxilary Contact KTM-11 N.C.

Turck Proximity Sensor Bi2-S12-AD4X 10-65vdc 2mm sens

2pc Buss Bussmann Semiconductor Fuse FWP-25A14Fa 25AMP 700V

Micro Switch Limit Switch LSZ3K

Honeywell Plug In type relay 8606 R4222F 1000

Micro Switch Push Button Operator PTP41

Micro Switch Selector Switch Operator PTSBF301

Micro Switch Limit Switch Whisker Arm 6PA19

emecanique Overload Adder Block LA7-D1064

Keyence Converter Module OP-5148

Allen Bradley Bulletin 193-BSB16 1.0 - 1.6 amp

Red Lion Base Mount Bracket for Cub2 Counter BMK20000

Matsushita Circuit Breaker CP-C BAC100505 1 POLE 0.50AMP 250VAC

8pc Allen Bradley Switch Legend Plate RUN 30mm size

Conek JSC1/2-N4 L PORT FLOW CONTROL VALVE TUBE

3pc Fusetron Time Delay Fuse FRN-R-60

Numatics Solenoid Pilot Valve L12PA4520

5pc Buss Low Peak Yellow Fuse LPJ-3SP

5pc Buss Low Peak Yellow Fuse LPJ-2SP

2PC Square D General Purpose Relay 8501 KP-13 3PDT 120VAC

2pc Allen Bradley 1746-N2 Slot Filler

Cutler Hammer Circuit Breaker QCR1015 15amp

EDYNE HYSON SEAL KIT 19-209-7000 MOR 2.5 IN BAG

Rockford Air Devices Reed Switch L-RS-004 240v AC/DC

Gemco 120v Relay SD-2911-B

Keyed Cylinder Lock Selector Switch

Allen Bradley 1492-CB1G010 Circuit Breaker 1amp 1p

3M 760 Hybrid Adhesive Sealant Above / Below waterline Low VOC

GE Fanuc Input Module 16PT Pos/Neg Logic IC693MDL645E

emecanique LED Pilot Light Green

Deltrol Pneu-Trol C10SS Check Valve SS 1/8"

Allen Bradley 1492-CB1G070 Circuit Breaker 277v 7amp

Esab Check Valve CV-7

Mosier Prox Switch Pick Up Sensor 1A-250V-30W

Numatics Pneumatic Cylinder 07550S01-01A

2PC Softnoze Cushioned Sensor Mount SN-18

6PC Softnoze End-Noze Sensor Cap EN-18

Ohmite Resistor 210-225P-46 500ohm

Allen Bradley SLC 150 Rack Cable 1745-C3 Ser A

Sunx Sensor Cordset CN-24EL-C5 4 wire

Pepperl & Fuchs Proximity Sensor NJ2-12GM-WS-V12

Woodhead Sensor Cordset 884030K0SM020 250VAC 4 AMP 4 PIN

2pc Potter & Brumfield Ice Cube Relay KUP-11A55-24 24vac coil 2 Pole

3pc Black Box RJ485 Patch Cable EVNSL92-0010

Opto 22 Relay IDC5BQ

emecanique Aux Contact Block LADN40 LA1DN40

Allen Bradley Mushroom Head Operator 800T-N246B BLACK

Square D QO Circuit Breaker QO240

3pc Buss Low Peak Yellow Fuse LPJ-15SP

Woodhead Sensor Cord Set 5AA68 3 wire 250v

2 pc Allen Bradley Surface Mount Terminal Block 1492-HJ86

3pc Allen Bradley Relay Socket Base 700-HN122 Series A

SST Bearing Corp Pillow block Bearing SBFTN205-16

Square D Illuminated Push Button Operator 9001KXRAW

2pc Destaco 202-U Clamp

2pc Buss Low Peak Yellow Fuse LPJ-20SP

Watt Stopper Power Pack B120E-P 120VAC

50pc Allen Bradley Prenumbered Marker Stirps 1492-N85 IN BAG

Ross Pneumatic Gauge 5400A1008 0-160psi 1.5" diameter

Westinghouse EHB1015 Circuit Breaker 1 pole 15 amp 277v UN

Potter & Brumfield Ice Cube Relay KHV-17A12-120 120vac coil 4 Pole

GE Fanuc 24vdc Input Module IC693MDL645 G

Moeller Miniature Circuit Breaker FAZ-S6 480V

GE 2 Pole Circuit Breaker THQL2120 20amp

5pc Digi-Key 12 Contact Plug w/ pin insert HR112-ND IN BAG

Allen Bradley 800T-P16 Pilot Light Red Lens Series T

ISSC Proximity Sensor T12-A110S 20-250vac

Allen Bradley Push Button Locking Cover 800T-N156

Allen Bradley 1492-CB1H030 Circuit Breaker 3amp 1p

Allen Bradley 1492-CB1H010 Circuit Breaker 1amp 1p

2pc Square D Light Module 9001LMA-35 24-28V AC/DC

Amphenol MS Military Flange Plug 97-3102A-28 0850

Moeller Single Pole Circuit Breaker FAZ-C25 277 / 480VAC

4pc Releco Relay 11 Pin Socket Base S3-B

Red Lion Counter CUBC0000

Allen Bradley 1772-MS Memory Segment

Allen Bradley Limit Switch Roller Arm 802T-WIB Steel Roller

IFM ELECTRIC EFFECTOR CORD SET EVC005

Clarostat Potentiometer 73JA 1K

4pc UNITED ABRASIVES-SAIT 22130 Depressed Center Wheel, T27, 4.5x1/8x5/8-11, AO

BEARINGS Brand Roller Bearing 6210-2RS

Pepperl & Fuchs Proximity Sensor NBN15-F11-WS-V1?2

co Thru Beam Photoelectric Sensor Transmitter SMT4000-MG5

emecanique Contactor CA3DN31 24VDC COIL

Phoenix Contact Relay UEG-REL/KSR-24/?21 24v AC / DC

Hy-Lok 1/2T X 1/2 FNPT Femal Connector CFC 8-8N-S316 316SS

Allen Bradley 700F310A1 Control Relay

Mitsubishi Servo Connector MR-CCNI

Microswitch Limit Switch BZ-2AQ18T1 15amp @ 125-480vac

Microswitch Limit Switch BZ-2RQ69 15amp @ 125-480vac

Automation Direct Proximity Sensor AE1-AN-1H 10-30vdc IN BAG

Interpower Plug in EMI Filter Model 83510071

Numatics Solenoid Valve Coil 236-384B 24vdc 4.0 watt w/ Bridge

4pc Exair Filter Bracket 900396

3pc Banner Plug in Relay MGA-SR-1.

Schmersal Door Saftey Interlock Switch AZ16-12ZVRK

PHD Compact Sensor 17502-1-06 4.5 - 24vdc

4pc Buss Low Peak Yellow Fuse LPJ-1SP

Cutler Hammer Push Button Operator 10250T105

Allen Bradley Limit Switch Roller Arm 802T-W6D Series 1 Steel Roller

Square D Magnet Coil 31021-4-60 120v For 8501 6-8 Pole

Microswitch Limit Switch Roller Arm LSZ52D

KURT J LESKER QF50-200-SF STAINLESS STEEL FLANGE

KURT J LESKER QF50-200-SB STAINLESS STEEL BLANK FLANGE

Allen Bradley 800T-PA16 Illuminated Push Button Red

2pc English Electric Type EJ Fuse Part Number EJ10 10amp 600vac

Crouzet Compact Limit Switch 83-873-1

Square D Relay Socket Base 8501 NR43

Automation Direct Sensor Cord Set CD12M-0D-050-C1

2pc Square D Auxiliary Contact Block 8501 PH62E

Buss Tron Rectifier Fuse KBH50 50amp

Merlin Gerin Circuit Breaker Catalog Number 24502 C60N 3amp 277vac

Moeller IEC Circuit Breaker FAZ-C05

Allen Bradley Bulletin 193-BSB16 1.0 - 1.6 amp

Shawmut Ultrasafe Fuse Holer US3J1 30amp 600v 1 Pole

Allen Bradley Illuminated Push Button 800T-PB16 Series T

NUMATICS 1FPRN8 PNEUMATIC FLOW CONTROL VALVE 1/4"TUBE 1/8"NPT IN PACKAGE

Crouse Hinds Mini-Line Field Attachable Device Net Plug CHDN-AA-NG 5 pin

20pcs 1076 Incandecent Light Bulb

Canfield Connector Reed Switch 9-7000-012 240V AC/DC N.O. SPST

Allen Bradley Thermal Overload 193-BSB60 4.0-6.0 amp

Allen Bradley Illuminated Push Button 800T-PB16 Series T Green Operator

Siemens Circuit Breaker 5SX21C2 230 / 400 vac 2amp 1 pole

2pc Buss JJS-10 Fuse

Siemens Pilot Light Module 3SB14 00-4M 110VAC

3pc Lumberg Cordset RKWT4-633/2M

Allen Bradley Miniature Relay 700-HK36Z24 24vdc coil 1 Pole w/ base 700-hn121

3pc Square D QO120 Circuit Breaker 20amp 1 Pole

Balluff Sensor Cordset BKS-S20-1-5 3 wire

26pc Vickers Cylinder Mounting Parts

Allen Bradley 800P-XA Contact Block 1n.o. 1 n.c.

Potter Brumfield 4 Pole Relay KUP17D19

Square D Miniature Relay 8501RSD14M1P14V?53

Allen Bradley Miniature Relay 700-HK36A1 120v coil 1 Pole w/ base 700-hn121

7pc Sunbank Corp Wiring Hood Shell 07418/M85049/51?-1-12N

2pc Allen Bradley 1491-N162 Control Circuit Fusing Kit

Allen Bradley Relay 700-HB33Z24 Series C 24vdc coil 10a 3PDT

IDEC Illuminated Selector Switch ASLW GREEN LED

Allen Bradley 800P-N4 Palm Button Adapter Plate

Square D Push Button Boot 9001-KU1 9001KU1 Black

Bearing / IPTCI ER205 16

Allen Bradley 1746-IB16 DC Sink Input Module Series C

Allen Bradley Terminal Lug Kit 199-LE1

Moeller Single Pole Circuit Breaker FAZ-C10 277 / 480VAC

2pc Banner US-LG Lens Cover Plate

Allen Bradley 800T-PA16 Illuminated Push Button Series T White

Fabco Air Reed Switch 9C49-000-331 5-28vdc

2pc Amphenol Connector 97-3106A-10SL-4?S

3pc Allen Bradley Thermal Overload Heater W24

Allen Bradley 800MS-PB16RA09 Illuminated Push Button

Ametek US Gauge Pressure Gauge P844U 60PSI 2" Face 1/8" ANPT

3pc Buss Low Peak Yellow Fuse LPS-RK-60SP

Turck Micro Fast Sensor Cordset KB 4T-4 4 WIRE 4 METER

Fabco Air Reed Switch 9C49-000-331 5-28vdc

Allen Bradley Contactor 100-A09ND3

GE Illuminated Push Button P9MPLAGD

Allen Bradley 1771-OW DC Selectable Contact Output

SMC Quick Connect Fitting Socket Head Male Connector KQGS08-01S

3pc Wago Terminal Block Z84 EC 947-7-1

SMC Quick Connect Fitting Socket Head Male Connector KQGS07-32

SMC Quick Connect Fitting Socket Head Male Connector KQGS09-N01S

Intermatic Heavy Duty Timer Model TN311

Entrelec Opto Coupler 8018.01

2pc Exair Connector Insert Kit 900552

3pc Buss Low Peak Yellow Fuse LPJ-6SP