140CPS51100
140CPS51100
140CPS51100
在DCS應(yīng)用中，最讓人不清楚的，但又是必須理解的大概就是接地問(wèn)題了。不僅很多用戶不清楚，就連有的系統(tǒng)集成商、DCS廠商代理處的有些人都未必特別清楚，原因是因?yàn)榇蟛糠謱W(xué)自動(dòng)控制和計(jì)算機(jī)的人在學(xué)校學(xué)自動(dòng)控制原理或計(jì)算機(jī)原理時(shí)是不學(xué)接地內(nèi)容的。而工業(yè)控制計(jì)算機(jī)又涉及到除了計(jì)算機(jī)本身外還有很多各種類(lèi)型的信號(hào)線，直接與計(jì)算機(jī)I／O接口相連，這些信號(hào)有開(kāi)關(guān)量型（包括開(kāi)入、開(kāi)出、而且負(fù)載能力也有很大差別，有模擬類(lèi)的（大信號(hào): 4－20mV，1－5V，小信號(hào)0－50mV。O－10mV，大信號(hào)中有四線制的，也有兩線制的）有的系統(tǒng)中還有交流信號(hào)直接通過(guò)互感器而接到計(jì)算機(jī)的交流信號(hào)來(lái)樣，這樣也就造成了各工控機(jī)廠家（特別是DCS廠家）為了保證自己系統(tǒng)能夠在各 種應(yīng)用現(xiàn)場(chǎng)正常運(yùn)行，提出了各種各樣的接地要求。而這些接地要求差別很大，有的很苛 刻，有的相對(duì)寬松一些。這就更使現(xiàn)場(chǎng)人員混亂了。不僅廠家提的接地要求不一致，而且各種教科書(shū)和設(shè)計(jì)手冊(cè)中對(duì)接地的解釋也不甚統(tǒng)一。為了讓現(xiàn)場(chǎng)施工人員和工程服務(wù)人員對(duì)接地問(wèn)題有一個(gè)較全面的了解，我們?cè)诖溯^為詳細(xì)地介紹一個(gè)系統(tǒng)應(yīng)用中遇到的一些接 地概念和方法。
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廈門(mén)泰尼電氣有限公司
Xiamen Thani Electric Co.,Ltd
聯(lián)系人：小黃
電話:0592-6809319
手機(jī):18950191386
QQ:2917675397
傳真:0592-6890859
Adress:廈門(mén)市海滄區(qū)濱湖一里7號(hào)2008室
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HAAS LASER steuerpult 05-04-79-00 /a ROBOTIC CONTR
ROTRonIC DT-2 HYGROSKOP DT DT2/1 -001V HUMIDITY MO
ROTRonIC WA-40/P PROBE STATION 115 RAN 9150 R 4748
ASHCROFT DRESSER T720T05030 XBX 3/4" TEMPERATURE OP
SOR STATIC-O-RING 6L-B3-J4-C1A-CGMMRR 1/4" NPT PRES
HBM KRAFTAUFNHMER TYPE Z8 FORCE TRANSDUCER SENSOR 5
TUTHILL 2C1BV-C HYDRAULIC PUMP 20V35C
STERIS ERIE 93928-283 REV 0 AMSCO/APEX P/N 136808-242 R
AMPHENOL P20340-E19 SERVO TOOL CABLE GE SUPPLY ROCFORD
BITRODE PCB CIRCUIT PLC BOARD 4AC10235-101
BITRODE PCB CIRCUIT PLC BOARD 4AC10158-401 CELL M
1 1/4" CASH VALVE UNITED BRASS WORK PRESSURE REGULATOR
DATAMETRICS LRC-512-24SDE-1A TRUMP ROSS ENCODER LRG-512
COUTANT A22400 GPE 200/24, 24VDC POWER SUPPLY GPE20
ABB DSTC 160 3A KEYBOARD TERMINATION MODULE 5752000
DAYTON 4Z062A PERMANET-SPLIT CAPACITOR GEAR MOTOR,
TECH-STAR T-STAR MODEL 004 MODEL 007 link A MODULE EDM
TECH STAR T-STAR 004 TRUE TRACK REPAIRED
MICRO-TAS TOOL ConTROL MODULE INGERSOLL-RAND
MICRO-TAS TOOL ConTROL MODULE INGERSOLL-RAND CONTROLLER
STOGRA SM 87.3.18 M 3.5 SERVO MOTOR 3.5A/PH SERIE 0408
AGIE 619 782.6 WIRE ConTROL PCB BOARD EDM MACHINE
AGIE EDM MACHINE PCB RELAY BOARD 615 222.7 MJG0212A
AGIE EDM MACHINE PCB RELAY BOARD 620 682.5 MJG0222A
2" NPT ASCO 8290A035 PISTON ANGLE SEAT PILOT AIR CO
ATHENA 86L-B-114-149 PROCESS TEMPERATURE CONTROLLER, 1
ACTION INSTRUMENTS H910-0001 SLIMPAK 24VDC POWER SUPPLY
Viatran Transmitter MODEL 2184ANAF53A THIOKOL TRANSDUCE
BYSTRonIC E0790-5-A 4E0790-4-A ROM/RAM 3 ConTROL BO
QUARTECH 8651 PLC-2 PROGRAMMABLE PUSHBUTTON STATIO
500' of 4912120-500 Fenner Drives Gray & Purple Dri
INTERLAB ROBOT INHIBIT,TEMPERATURE ConTROLLER CM-9
OPCON 1141D-6501 PHOTO SENSOR SWITCH P/N 104824 115
RL-04513 MTE 3 Phase Line Reactor RL 04513
GURLEY PRECISION 8135H01800F5T01D36TS16EN PRECISION
HonEYWELL BURNER ConTROL RM7800 G 1018 WITH Q7800 B 100
MonARCH CORTLAND MACHINE TOOL M10336 REMOTE ConTROL STA
JOHNSON ConTROLS CYBERTRonIC RELAY NETWORK NQ-6100-
ORION 300DX/24 DC TO DC POWER SUPPLY 300W MAX ORION
HANOVIA UV C007429-008-002 PRECISION, CALIBRATED UV
ALLEN-BRADLEY 2755-LD1 SER A FIXED MOUNT BAR CODE S
EMHART/WARREN B 336 E 110 334 WELDING ConTROL CIRCUIT
ABB TC 530 T-BOX MODULE CONTROLLER
ECTRON 352X ConDITION AMPLIFIER MODULE
ECTRON 448AIOPUX-5 DIFFERENTIAL DC AMPLIFIER W/ STRAIN
INTERCON ROBOTIC/MACHINE CABLE ASSEMBLY CORDSET GMP-004
VICKERS TOKIMEC DGMPS-3-A-1-11 SOLENOID VALVE
INGERSOLL-RAND 93972768 DC MOTOR ConTROLLER SYSTEM
THREAD-CRAFT QSM-320-1-050-2 PRECISION BALL SCREW A
R. WOLF 8912.401M 0 DEGREE PANOVIEW SCOPE LUMINA 571428
TELEMECANIQUE XCS-E5513 INTERLOCK SAFETY SWITCH XCS
Honeywell Primary Controll R7795C 1007
PS-5021-10-M09-W Electro Cam Programmable Limit SwitchP
PS-5021-10-M09 Electro Cam Programmable Limit SwitchPLU
HONEYWELLS7800 A 1001 BURNER ConTROL RM7895 A 1014, ST7
OPTIMISED ConTROL LTD D841 ISS 4 COMP SIDE PCB
BWI 40-3500 AIR-EAGLE RF RECEIVER BUTLER 440101 120V
SAMES GN4002 CONTROLLER/POWER SUPPLY, TYPE 3AG2A, 110/2
WARNER ELECTRIC 8122-448-005 R-2202 ELECTRIC BALLNU
ALLEN-BRADLEY 1370-FFE FIXEDFIELD SUPPLY MODULE FFE
YASKAWA CPCR-MR01C SERVOPACK SERVO DRIVE CPCRMR01C
Allen-Bradley 1770-LDA Line Driver/Receiver PLC-2 NIB
FESTO DIDACTIC FPC 101AF PLC TN14585
STATIC ConTROLS SCC 1080-P4-04-128-C-FN TERMINAL OIP PA
ALLEN-BRADLEY SP-119471 CK PC BOARD base DRIVER PCS
JESCO N-0949-HV-M-P FLOW ConTROL VALVE CO PRODUCTS
MIKUL 6018 rev 5 CIRCUIT BOARD PC BOARD UNIVERSAL MEMOR
SENSORTRonICS 65023A4K-5107 LOAD CELL,4000 LBS CELL ROD
ADEPT TECH 10300-15400 AMPLIFIER ConTROL B DRIVE M
ROBICON 466526.01 REV A SUPPRESSER BORAD
ROBICON 466526.00 REV A SUPPRESSER BORAD
BALLUFF BTL5-A11-M0305-B-SU147-S32 MICROPULSE LINEA
ALLEN BRADLEY 1398-SR3AF SHUNT MODULE ACTIVE RESISTOR 9
honeywell RM7890 D 1004 BURNER ConTROL S7800 A 1001 SET
Arc Agent 2000 Process Data Monitoring Welding System
BALLUFF BTL5-A11-M0305-B-SU147-S32 MICROPULSE LINEA
TR TRUMP-ROSS TRU-ROTA S2693 ENCLOSURE TRU-ROTA DC
VALENITE MODCO GMT900-10-1 CAT 50 INSERT ENDMILL B2074-
Honeywell RM7895C1020 Burner Control RM7895 C 1020
GEORGES RENAULT MODCVI ConTROLLER 6159326160 8272/MODCV
ALLEN-BRADLEY 440F-C28011 MATGUARD SAFETY MAT CONTR
INGERSOLL RAND 42135913 AIR COMPRESSOR DISCHARGE V
DEEMSTOP MonTRONIX 400004 PSU-CX/CZ POWER SUPPLY
MELCHER AC-DC/DC-DC Converter LM 1000 Mk ll
DYNISCO PT435A-10M-10/50 MELT PRESSURE TRANSDUCER 0
URYU type US-4 PNEUMATIC SCREWDRIVER
HonEYWELL BURNER ConTROL RM7895 B 1013
AUTOMATION PRODUCTS EC-501A EXPLOSION PROOF RELAY CONTR
DRUCKMESSUMFORMER JUMO DTRANS P30 PRESSURE TRANSDUCER 4
WATLOW DB20-24C0-0000 DIN-A-MITE POWER CONTROLLER
YASKAWA ELECTRIC USAREM-A5CFJ13 AC SERVO MOTOR, 50 WATT
INGERSOLL-RAND 93888832 N+1 MODULE ingersoll rand
LFE 2003 DIGITAL TEMPERATURE ConTROLLER MINIPUP DISPLAY
HonEYWELL BURNER ConTROL RM7840 M 1017 HonEYWELL RELAY
AMF PARAGON 500-132-00 ON DELAY TIMER 0-60 MINUTE
RELIANCE ELECTRIC 0-51829-2 LINEAR VOLTAGE TIMING CARD,
ALLEN-BRADLEY SLC-150 1745-LP156 PLC PROCESSER UNIT
1 1/2" cash valve united n0. 1001 live steam regulator
UNITED SCIENCE 1003-0500-06 POWER SUPPLY BOARD
INGERSOLL-RAND DC MOTOR ConTROLLER SYSTEM 93969889
1 1/2" cash acme valve B-62 HY07.12 pressure regula
65-1092S30 Joslyn Clark 160 OHM 2.3-1.2A 600V Type
SAMSOMATIC 3923-0070 PNEUMATIC ConVERTER SPC 0070 1.03
MAZAK & FANUC CNC ConTROL PANEL 21146004831
RELIANCE ELECTRIC 0-51829-2 LINEAR VOLTAGE TIMING C
BURSTER 2354-5002-V2100 DIGITAL PANEL METER
PANASonIC MSDA083D1A AC SERVO DRIVER
ULTRASonIC 48KHZ GEN POWER GENERATOR 48VDC 4.0302.007.0
HonEYWELL R7861 A 1034 DYNAMIC SELF-CHECK ULTRAVIOL
Johnson Controls Dapmer ACTUATOR Motor HF 25CE 001
【商家簡(jiǎn)介】廈門(mén)泰尼電氣有限公司專(zhuān)業(yè)銷(xiāo)售大型控制系統(tǒng)及各種進(jìn)口模塊備件（DCS系統(tǒng)）廈門(mén)泰尼電氣有限公司是一家多年專(zhuān)業(yè)從事大型系統(tǒng)（DCS）備件銷(xiāo)售ABBAdvantOCS，ABBMOD30/MODCELL，ABBMOD300，ABBBaileyINFI90，ABBProcontic，ABBProcontrol，HBContronic，MooreAPACS，MoorePanelControllers，RosemountRS-3，SiemensIskamatic，SiemensSimaticS5，SiemensSima...
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