5X00070G04

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描述

5X00070G04

c的抑制Ec是叠加在二次仪表任一输入端与地之间的干扰,主要由地电位不同引起,防止共模干扰通常采用屏蔽和接地相结合的方式来抑制干扰。
为了安全起见,通常二次仪表和信号源壳体都接大地,以保持零电位。信号源电路以及仪表系统也需要稳定接地,如所示,两点接地,由于存在地电位差,产生共模干扰。因此,系统接地通常采用在信号源侧或二次仪表回路单点接地,如所示。为了提高仪表抗干扰能力,仪表生产厂家一般都把放大器浮地,以切断共模干扰的泄漏途径,使干扰无法进入,另外,事实上信号源侧对地也不可能绝缘,采用4a)的接地方式不可能彻底消除地电位差引入的干扰,因此为了提高二次仪表的抗干扰能力,4b)所示的接地方法是经常采用的。
在实际应用中,通常将屏蔽和接地结合起来应用,往往能解决大部分的干扰问题。如果将屏蔽层在信号侧与仪表侧均接地,则地电位差会通过屏蔽层形成回路,由于地电阻通常比屏蔽层的电阻小得多,所以在屏蔽层上就会形成电位梯度,并通过屏蔽层与信号导线间的分布电容耦合到信号电路中去,因此屏蔽层也必须一点接地。并且,信号导线屏蔽层接地应与系统接地同侧,如4所示。即当不接地的信号源与接地的二次仪表放大器相连时,屏蔽层应如4a)所示接至放大器的公共端,而当信号源接地、放大器浮地时,屏蔽层应如4b)所示接至信号源公共端。
事实上,由于二次仪表的外壳为了安全需要接地。而仪表的输入端与外壳之间一定存在分布电容和漏电阻,浮地不可能把泄漏途径完全切断,因此,必要的时候,通常采用的是双层屏蔽浮地保护。
也就是在二次仪表的外壳内再套一个内屏蔽层,内屏蔽层与信号输入端以及外壳之间均不作电气连接,内屏蔽层引出一条导线与信号导线的屏蔽层相连接,在信号源处一点接地,这样使二次仪表的输入保护屏蔽及信号屏蔽对信号源稳定起来,处于等电位状态,可以大大提高二次仪表抗干扰的能力。
以上针对仪表应用中干扰产生的方式,对实际工程中经常采用的几种抗干扰措施予以介绍。实际使用中,工业生产现场的干扰情况复杂,用一种抗干扰方法往往很难解决问题,应针对不同情况,将信号线的扭绞、屏蔽、接地、滤波、隔离等各种方法结合起来使用,以便获得满意的效果。

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主营DCS系统配件
机器人系统配件
大型伺服系统配件
品牌:ABB   ,AB  ,GE,FOXBORO,本特利,英维思,伍德沃德,西屋,瑞恩,施耐德,西门子,摩托罗拉,安川。力士乐。ACSO,横河等进口品牌。Triconex Siemens Yaskawa ABB GE Ovation AB Foxboro Motorola Schneider XYCOM KUKA

Sharplan 40-C compact CO2 laser with articulated arm

MITUTOYO ULTRAPLAN FS110 COMPLATE SET W/LENS AND LIGHT

NIKON ZOOM PHOTO SLIT LAMP FS-3V WITH 12.5XC1 EYEPIECE

HONEYWELL TC-FPCXX2 W/ NET INTERFACE CONTROL

INPUT/OUTPUT DIGITAL/ANALOG CARDS SERIAL INTERFACE

HP AGILENT 8648B 100 KHz TO 2.0 GHz SIGNAL GENERATOR.

ROHDE & SCHWARZ CCVS + COMPONENT SAF GENERATOR

ADVANTEST R6243 DC VOLTAGE CURRENT SOURCE/MONITOR

ADVANTEST TR9403 SPECTRUM ANALYZER TR98201 SIGNAL GEN.

TEKTRONIX HFS 9009 STIMULUS SYSTEM W/ QTY2 HFS 9DG2

PHILIPS 21364A OMNI-PLANE II ULTRASOUND TRANSDUCER TEE

MODIA GMBH TORQUE SPEED MEASURING SYSYTEM

ROHDE & SCHWARZ SMY02 SIGNAL GENERATOR 9KHz-2.080GHz

ALCATEL ATH1000M Turbomolecular Pump

LeCroy LW420 2Ch Arbitrary Waveform Generator 400Ms/S

JDSU 2213-75SLK O.50W 515nm ARGON-ION LASER HEAD

OLYMPUS CK2 INVERTER TRINOCULAR MICROSCOPE W/CAMERA
Olympus CK2 Inverted Trinocular Microscope

ADVANTEST R3261C SPECTRUM ANALYZER 9KHz-2.6GHz OPT 81

LEICA DMLS BINOCULAR STEREOZOOM MICROSCOPE COMPLETE SET

ROHDE&SCHWARZ SME 03E SIGNAL GENERATOR 5KHz-2.2GHz

ROHDE & SCHWARZ SME 42 SIGNAL GENERATOR 5Hz – 1.5GHz

NIKON OPTIPHOT MICROSCOPE FOR LAB W/ COMPLET SET

HP 8643A 0.26MHz-2060MHz SYNTHESIZED SIGNAL GENERATOR

ADVANTEST R3261A SPECTRUM ANALYZER 9 kHz to 2.6 GHz

LUMONICS LUXTAR LASER PARTS SPILATAR

TELEMECANIQUE TSX 47-20 PROCESSOR TSXP4720 WITH SCM 20
POWER SUPPLY TSX SUP 40 , INPUT/OUTPUT MODULE SET

ROHDE & SCHWARZ SMG SIGNAL GENERATOR 100KHz – 1000MHz

ROHDE & SCHWARZ SMG SIGNAL GENERATOR 100KHz – 1000MHz

HP 6652A SYSTEM DC POWER SUPPLY 20V/25A

HP 6626A SYSTEM DC POWER SUPPLY 4 OUTPUT

AGILENT HP 85046B S-PARAMETER TEST SET WITH OPT C03

LECROY 9354AM 4 CHANNEL 500MHz DIGITAL OSCILLOSCOPE
SINGLE QUAD 2GS/s 500MS/s 1Mpt 250kPT

Eppendorf Centrifuge 5417R Refrigirated Microcentrifuge

ROHDE&SCHWARZ SME 03 SIGNAL GENERATOR 5KHz-3GHz

HP 8349B 2GHz-20GHz MICROWAVE AMPLIFIER NICE CONDITION

NIKON MM-40 MEASURING MICROSCOPE PARTS HEAD ILLUMINATOR

HP/Agilent 54622A 2-Channel,100 MHz Oscilloscope,pr​ob
200MS/s WITH OPTION N2757A NEW UNIT BOX PACK manual

AGILENT HP 8591A SPECTRUM ANALYZER 1MHz to 1.8GHz
WITH OPTION 001 / 301 ,UNIT NEED REPAIR SELL AS PARTS

SCHLUMBERGER SOLARTRON 1250 FREQUENCY ANALYZER REPAIR

JDS FITEL SB SERIES FIBER OPTIC SWITCH100-240V 50/60MHz

ANRITSU NETWORK ANALYZER MS3606B 10KHz-1GHz

HP 8643A 0.26-1030MHz SYNTHESIZED SIGNAL GENERATOR w/OP

ALCATEL ATH Turbomolecular Pump

Hewlett Packard E8403A 75000 C-SIZE VXI MAINFRAME

Hewlett Packard E8403A 75000 C-SIZE VXI MAINFRAME

HP S5010 21347A 3.7/5.0 MHz Phased Array Sector

LUMONICS LUXTAR LASER PARTS 2 SPILATAR .

Branson 2000 2000ea Ultrasonic Assembly Systems 40:0.4

KEPCO BOIPOLAR OPERATIONAL POWER SUPPLY BOP 500M
KEPCO BOIPOLAR POWER SUPPLY/AMPLIFI​ER BOP 500M

HP 83430A LIGHTWAVE TRANSMITTER 1310.5nm W/ OPTION 130

HP 21200B 2.5MHz ULTRASONIC TRANSDUCER ULTRASOUND

HP 83430A LIGHTWAVE TRANSMITTER 1309.7nm W/ OPTION 130

AGILENT HP 85046B S-PARAMETER TEST SET 300KHZ-2GHZ

ROHDE & SCHWARZ SMX SIGNAL GENERATOR 100KHz – 1000MHz

STROMAG STROMATIC ADC 012.3 V DIGITAL SERVO CONTOLLER

AGILENT 86061C 2×8 LIGHTWAVE SWITCH,115/230V​, 50/60MHz.

HP AGILENT E6392B GSM MOBILE MS TEST SET WITH OPT 002

HP 70004A DISPLAY FRAME AND HP70311A CLOCK SOURCE

Hewlett-Packard / Agilent E5272A FRAME WITH E5281A UNIT

SONY TEKTRONIX AFG2020 ARBITRARY FUNCTION GENERATOR
250MS/s synthesized FUNCTION GENERATOR WITH OPT 02

Hewlett-Packard E8285A CDMA Mobile Station Test Set

PHARMACIA BIOTECH ULTROSPEC 2000 MODEL 80-2106-00

BOC EDWARDS EXC 300M P NO D39615000 VACUUM CONTROLLER

YASKAWA AC SERVO MOTOR SGMT-14A2AX-TE1 WITH ENCODER

HP 8643A 0.26MHz-2060MHz SYNTHESIZED SIGNAL GENERATOR
with opt 002 UNIT UNDER REPAIR AS PARTS

FLUKE PHILIPS PM6681 HIGH RESOLUTION PROGRAMMABLE

Nireco Controller AE900E Liteguide AE900L good unit

BALDOR AC SERVO DRIVER SBSC2035 IN 320VDC OUT 0-250VAC

HP 70001A 8 SLOT SYSTEM MAINFRAME CHASIS WITH 70311A

ADEPT EXC CONTROLER 90400-80010 3AXIS EXC30A311A00AD-​04

AGILENT 8760C K58 SWITCH MATRIX UNIT OPT K58

SHIBASOKU TA35C MULTICHANEL TV SOUND SIGNAL GENERATOR

STROMAG STROMATIC AEB 125.3 ZW-S DC CONTOLLER

HP Agilent 8903B Audio Analyzer, 20 Hz – 100 kHz W/OPT

MELLES GRIOT 17MDS002 NANOSTEP MOTOR CONTROLLER

MELLES GRIOT 17MDU002 NANOSTEP MOTOR CONTROLLER

Tektronix SJ300E Sonet SDH Jitter Wander Analyzer

HP 70004A DISPLAY FRAME&HP70311A CLOCK SOURCE OPT H08

SEW EURODRIVE MC07A004-2B1-4-​00 AC DRIVE 240 VAC

LEICA POLYWAR SC MICROSCOPE HEAD, 6 POSITION TURRET.

NEW!!! JETTER (CE) AC-SERVOMOTOR F1004F-0S101-70​03-0

TEKTRONIX TDS 520 2 CHANNEL DIGITIZING 500MHz 500MS/s

BMI 8800 POWERSCOPE BASIC MEASURING INSTRUMENTS W/WIRES

HP 70311A CLOCK SOURCE RANGE 16.1MHz – 3.3 GHz OPT 8ZE

KIKUSUI REGULATED DC POWER SUPPLY PAD 500-0.6A

KIKUSUI PLZ-153W PLZ153W ELECTRONIC LOAD PROGRAMMABLE

EQUIPE TECHNOLOGIES PRE-1373

TEKTRONIX 1761 WAVEFORM VECTOR MONITOR W/TEKTRONIX 764

TEKTRONIX 1761 WAVEFORM VECTOR MONITOR W/TEKTRONIX 1721

TEKTRONIX 1745A WAVEFORM VECTOR MONITOR TEKTRONIX 1721A

TEKTRONIX 1741A WAVEFORM VECTOR MONITOR TEKTRONIX 760A

WANDEL & GOLTERMANN PCM CHANNEL MEASUREMENT SET PCM-4
WITH OPTION ,UNIT NEED REPAIR.

PANASONIC AUDIO ANALYZER VP-7723A WITH OPT 02 MODE

JOUAN B 4I BENCHTOP CENTRIFUGE UNIT WITH ROTOR S40.

Nireco Controller AE900E Liteguide AE900L cover break

MITSUBISHI A1S61PN W/ A2SHCPU-S1 WITH LINK MODULES

SIEMENS KSP-M54/COM292 MACHINE CONTROLLLER UNIT

BLACKSTONE ULTRASONICS MULTISONIK POWER GENERATOR UNIT

WILD HEEBRUGG 415905 SURGICAL MICROSCOPE PARTS.

WILD HEEBRUGG SURGICAL MICROSCOPE PARTS .

SOKKISHA TM10E MICROMETER THEODOLITE SURVEY EQUIPMENT

Shimadzu Mini UVmini-1240 UV/VIS Spectrophotomet​er

KOLLMORGEN BDS5A-220-41010​/405C2-030 SERVO DRIVER

TEKTRONIX 2432A 250MS/s 2-CHAN OSCILLOSCOPE GPIB OPT22

ATL C4-2 40R CURVED ARRAY TEST FIXTURE TEE STEE ASSLY

REGUS RADIO SURVEY EQUIPMENT ERICSSON

TYLAN MICRO CVD CONTROL BD 118730-008

HEWLETT PACKARD HP 6623A TRIPLE OUTPUT POWER SUPPLY

HP 70004A DISPLAY FRAME AND HP70311A CLOCK SOURCE

THURLBY THANDAR TSP3222 PROGRAMMABLE CONTROLLER DC GPIB

AGILENT HP 6571A DC POWER SUPPLY 0-8V/0-220A.

PROPAQ ENCORE 204 EL PROTOCAL TR4ANSPORT MONITOR

MICROXAM SURFACE MAPPING MICROSCOPE 5 AXIS AUTO TURRET.

NIKON LABOPHOT INSPECTION MICROSCOPE W CAMERA OPTION

RADIONICS RFG-3D RF LESION GENERATOR SYSTEM 110/230VAC

VARIAN TURBO-V200A VACCUM PUMP MODEL 969-9024

OMRON CS1H-CPU66H PROGRAMMABLE CONTROLLER WITH MODULES

HP 6033A SYSTEM POWER SUPPLY 0-20V/0-30A

HAMAMATSU UV Spot Lightsource LC5 LightningCure L8222-2

0.4X-2.5X KAPS BINOCULAR STEREOZOOM MICROSCOPE W/EYES.

Omron R88D-UA20HA AC Servo driver 200V 11.0A 750W

OMRON CS1G-CPU42H PLC CPU W/ MC421-V1, SRM21-V1, PA204S

OMRON CS1G-CPU42H PLC CPU W/ MC421, SRM21-V1, PA204S

ET EURO TEST EHV10/SL HIGH VOLTAGE TESTER

EFFENDORF MINISPIN 5453 CENTRIFUGES

KUNOH BINOCULAR STEREOZOOM MICROSCOPE WITH CAMERA

TEKTRONIX 1745A WAVEFORM VECTOR MONITOR TEKTRONIX 1761

HP Agilent 8903A 20hz-100khz Audio Analyzer w/ Opt. 001

LEICA 020-650-070 MICROSCOPE & SYSTEME GMBH WETZLAR.

WELLHOFER DOSIMETRIE MD 240 MULTI CHANNEL DOSIMETER

TTC FIREBERD 6000A COMMUNICATIONS ANALYZER OPT 6005

STRYKER ENDOSCOPY 784 3 CHIP MEDICAL VIDEO CAMERA

LASAIR PARTICLE MEASURING SYSTEMS INC. MODEL 210

OMRON C200HX CPU85-Z PROGRAMMABLE CONTROLLER W/MODULES

NIRECO TENTION CONTROLLER TC 640 TC640

FUJI SHARP VM1153 BOARD CARD GOOD CONDITION

JOUAN B 4I BENCHTOP CENTRIFUGE UNIT WITHOUT ROTOR.

Agilent philips V26CT M1204A Anasthesia Monitor M1276A

BALDOR DIGITAL SOFT START MOTOR CONTROL MD-009-CB 230VA

PROPAQ 202 EL PATIENT VITAL MONITOR WITH MODEM OPT 223

NIKON SMZ-10 DUAL STEREO/BINOCULA​R MICROSCOPE HEAD

HP 8405A VECTOR VOLTMETER WITH PROBE

AGILENT HP 6621A SYSTEM DC POWER SUPPLY

LECROY 9310M DUAL 300MHz OSCILLOSCOPE

GOULD DIGITAL RECORDING OSCILLOSCOPE DRO 1624 W/ PRINTE

ZYGO INTERFEROMETER MICROSCOPE FOR PARTS

PANASONIC VP-7706A AUDIO ANALYZER

FLUKE PHILIPS 8522A DIGITAL MULTIMETER

GALIL DMC-1580 MOTION CONTROLLER.

Keithley 7002 10-Slot Switch Mainframe with 3 cards

ADRET 104A DC VOLTAGE STANDARD SOURCE

MICRO LASER PARTICLE SPECTROMETER MICRO LPS 16-(3)

ACS POWER CONVERSION EQUIPMENT DRIVE SB-211AT2-2 230VAC

ACS POWER CONVERSION EQUIPMENT DRIVE SB-212AT2-2 230VAC

WILD LEITZ DIAPLAN GMBH MICROSCOPE STAND WITH LIGHT

PARKER COMPUMOTOR AT6250-240V 25W 2 AXIS CONTROLLER

ESHED ROBOTIC SCORBOT ER9 ROBOT CONTROLLER

ESHED ROBOTIC SCORBOT ER9 ROBOT ASRS CONTROLLER

ESHED ROBOTIC SCORBOT ER9 ROBOT CIM CONTROLLER

ESHED ROBOTIC SCORBOT ER V CIM CONTROLLER W/TEACH PEND

NIRECO TENTION CONTROLLER UNIT TC 640 TC640 SUPPLY230V

SCHLUMBERGER SOLARTRON 1286 ELECTROCHEMICAL INTERFACE

Olympus Endoscope OES Xenon Light Source CLV-S20 230VAC

Smith & Nephew DYNONICS Image Xenon XL Light Source

MELLES GRIOT PIEZOELECTRIC CONTROLLER WITH FEEDBACK

PROPAQ ENCORE 202 EL PATIENT VITAL MONITOR WITH MODEM

Yokogawa DL1520 Digital Oscilliscope 150MHz,200MSa/s​,2C

JAE UT6 HANDY TERMINAL TEACH PENDANT UT6-AY312 V1.21

PROPAQ 202 EL PATIENT VITAL MONITOR WITH MODEM OPT210

HP 12100-60001 12100-60006 PCB CARD

LEICA POLYVAR SC MICROSCOPE BASE, X & Y AXIS.

Electro-Craft ROCKWELL BRU 100 BRUSHLESS SERVO DRIVE

HEWLETT PACKARD HP 6623A TRIPLE OUTPUT DC POWER SUPPLY

WELCHALLYN PROPAQ 246 PATIENT MONITOR WITH OPTION 229
REPAIR UNIT

ABB PM210 PLC CONTROLLER W/ AC800C MODULE & ADAPTER

PROPAQ ENCORE 202 EL PATIENT VITAL MONITOR

NEWPORT UNIVERSAL MOTOR DRIVE UNIDRIVE6000.

DALSA CCD IMAGE CAPTURE CAMERA CL-P4-8192W-ECE​W W/LENS

Hoefer Spectrophotomet​er Lab DyNA Quant 200 Fluoromter

HP 6033A SYSTEM POWER SUPPLY 0-20V/0-30A

PHILIPS PM 5680 TV IF MODULATOR, DS WITH OPTION PM5837

HP 6033A SYSTEM POWER SUPPLY 0-20V/0-30A

ANRITSU MS62B3 SPECTRUM ANALYZER

ATI UNICAM 8625 UV/VIS SPECTROMETER UV VIS

Keithley 7002 10-Slot Switch Mainframe w/ up to 400 Ch

TEKTRONIX TM502A With AM 503 Current Probe Amplifier

TESA MODUL 372 UNIT WITH TESA 425 MODULE

MEGURO MJM-631C CD JITTER METER.

B&R (CE) SERVOMOTOR 8MSA4M.E0-B4 REV.:C0.

YASKAWA AC SERVO MOTOR USAMED-03MA1 300W WITH ENCODER

YASKAWA AC SERVO MOTOR USAMED-03CA1 300W WITH ENCODER

YASKAWA AC SERVO MOTOR SGMG-03A2B 3A 300W W/ ENCODER

YASKAWA AC SERVO MOTOR SGMG-03A2B 300W WITH ENCODER

MARCONI INSTRUMENT 2305 MODULATION METER

AEROTECH MOTION BASE ALS20010M W/MT240DRIVER&R​SF MSA

FUJI ELECTRIC MICREX-F FPB56 FPB56HR-G02 7.8K MEMORY

ACUFEX V SYSTEM XENON ULTRALITE Y1148B POWER 500VA

PHAKOSYSTEMS 3M 4000 VISION CARE / 3M

OMRON SYSMAC C60H PROGRAMMABLE C60H-C60DR-DE-V​1 24VDC

JETTER DIMA 2-20 AMPLIFIER CARD NEW UNIT

MITSUBISHI MR-H350AN AC SERVO DRIVER 220VAC

TIME ELECTRONICS IEEE PROGRAMMABLE RESISTANCE 9811 BOX

SECA 727 INFANT DIGITAL SCALE 0-20KG

HEWLETT PACKARD 21245A , 5.0/3.7 MHz DEB TRANSDUCE

HEWLETT PACKARD 21242A, ULTRASOUND TRANSDUCER PROBE.

TOE OPTO LMG305-P LASER MICRO GAUGE CONTROLLER SET

Beckman Coulter Digital Microfuge 18 Centrifuge Repair

OMRON CS1H CPU66-V1 PROGRAMMABLE CONTROL W/ CS1W-SCB41
Converter Position Sensor Module

FUJI VM1932 BOARD CARD WITH MEMORY CARD GOOD CONDITION

SCOUT 4500 MINI O2 SATURATION MONITOR W/ FINGER SENSOR.

Tektronix 2465A 350MHz 4 channel Oscilloscope

COLBY INSTRUMENTS PROGRAMMABLE DELAY LINE HPDL-1A .

OPTRONIC LABORATORIE 740A OPTICAL RADIATION MEASUREMENT

SIEMENS SIMATIC S5-90U WITH IM 90 AND DIGITAL IN/OUTPUT

RH Electronics VACR Pressure Display 0090-A1101 110VAC
MEDICON-TSX MICRO WITH TXSDMZ

ALLEN-BRADLEY 5120-P1 PYRAMID INTEGRATOR MODULES 110VAC
RESOURCE MANAGER,DH/DH+ INTERFACE,ETHE​RNET INTERFACE

YASKAWA CACR-SR02AC1ER SERVOPACK 200V DRIVER

SONY POWER HAD 3CCD COLOR VIDEO CAMERA DXC-950

CKD ABSODEX DRIVER S TYPE AXC9009S-D08-P3

OLYMPUS OTV-F3 COLOR VIDEO CAMERA CONTROLLER OES TV

OMRON NT31-ST121B-EV2 INTERACTIVE TOUCHSCREEN DISPLAY

HP 21440A 7.5/5 PROB UNIT

TSK-10 ELECTRIC HOT AIR GENERATOR NEW UNIT W/ MANUAL.

YASKAWA CACR-PR 10 BC 3CSY10 SERVOPACK DRIVER

KIKUSUI PAC 16-10 REGULATED DC POWER SUPPLY 16V 10AMP

WAGO-I/O SYSTEM 750-304 INTERBUS-S KOPPLER W/750-401

HP 6033A SYSTEM POWER SUPPLY 0-20V/0-30A

ANCOT FCA-5000 FIBER CHANNEL ANALYZER 110V AC

HP 83480A DIGITAL COMMUNIUCATION ANALYZER

WHYETECH AUTOMATION XY5-3050 STEPPING MOTOR CONTOLLER

NIRECO TENSION CONTROLLER TC 440 TC440

PHILIPS PM 5680 TV IF MODULATOR

OPTIMISED CONTROL EB0234A04 BOARD CARD GOOD CONDITION

LIGHTNIN LABMASTER STIRRER MIXER L1U10 230v 90w

SCIENTIFIC ATLANTA 7550B 5.8-6.4 GHZ UP CONVERTER

Datascope Accutorr Plus Vital Signs Monitor

PHILIPS PM5193 PROGRAMMABLE SYNTHESIZER/FUN​CTION
GENERATOR 0.1mHz-50MHz

HP 6622A DUAL OUTPUT DC POWER SUPPLY 50V 2A ,20V 4A

ROHDE & SCHWARZ R&S POLYSKOP SWOB 5

Anritsu Standard Signal Generator MG6454B

BALDOR WASHDOWN DUTY DRIVE ID15H200-W 0-400Hz

PHILIPS X-RAY TUBE HOUSING ASSEMBLY SRO 0310 ROT 501

KLA INSTRUMENTS TRANSCODER 2 ASSY. 710-044527 CARD

KLA INSTRUMENTS SLOPE/INTERCEPT PROCESSOR 2 CARD

KLA INSTRUMENTS COMBINER/EDGE PROFILER 710-044053 CARD

KLA INSTRUMENTS EXTENDED BIAS AND ROUNDING 2 CARD


选择深圳长欣,选择放心,售后无忧大量现货,当天顺丰发货!
主营:本特利,英维思,伍德沃德,福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐,ACSO,力士乐等各大品牌的DCS系统配件,机器人系统配件,大型伺服系统备件。

先介绍几点经验。
1、先通读一遍“系统手册”(不管能不能看懂,先了解个大概,以便学习编程时查找);
2、由位控逻辑入手,逐渐增加定时、计数等条件,把或、与、非关系理顺;
3、进而练习整数运算、实数运算、类型转换;
4、量程转换、PID调节回路的建立及P、I、D参数的理解(最好是有个物理回路验证,比如变频器+电机+测速传感器);
5、循环、顺序、跳转等程序控制(尽量避免跳转,非跳不可时也是跳的越近越好);
6、中断、通讯、位置控制....

本人以ABB工业机器人配件DSQC系列和Motorola MVME系列,GE 卡件 模块 驱动器系列为主攻。各位电工朋友可根据自己的条件选择适合自己的PLC品牌,由于PLC的基本框架大同小异,学会一种至于其它的学习起来也就简单了。