描述
繼傳統(tǒng)的接觸器、繼電器等電氣控制系統(tǒng)之后，性能強大、功能豐富的工控裝置PLC（可編程控制器）成為當(dāng)下電工技術(shù)的新寵，用廖常初老師的話講——現(xiàn)在的電工工作人員如果專業(yè)知識架構(gòu)中，沒有一定的變頻器、PLC等工控裝置的技術(shù)儲備，幾乎是無法勝任本職工作的！那么今天我們就來聊一下PLC電源用線方面的相關(guān)知識，大家可不要小看這個問題，要知道實際工作中PLC發(fā)生死機、誤動作等故障現(xiàn)象，有近一半的原因正是由于PLC電源質(zhì)量欠佳所造成的！
①、PLC的供電電源線應(yīng)取自電壓較穩(wěn)定的干線或單獨引自配電點，以此來確保PLC供電質(zhì)量。如果電網(wǎng)電壓波動較大（如含有大功率負載），應(yīng)考慮加裝具有穩(wěn)壓功能的UPS裝置。
②、PLC的電源線最好采用具有一定抗干擾能力的雙絞線，其截面不應(yīng)低于2mm2（部分歐美機型要求不得低于4mm2）。此外在配線過程中，PLC的I/O、負載等應(yīng)盡可能單獨的電源線供電，不得從PLC電源輸入線上并接。
③、當(dāng)電源中噪聲過大時（多由于電網(wǎng)內(nèi)變頻器等裝置污染所致），對PLC供電應(yīng)采用隔離變壓器，阻止噪聲干擾進入PLC。
④、在采用隔離變壓器和低通濾波器時，PLC電源線應(yīng)先經(jīng)隔離變壓器→低通濾波器后再接入PLC。若所用隔離變壓器采用雙隔離技術(shù)時，一次側(cè)屏蔽層應(yīng)接中線，以便隔離進線端的電磁干擾；二次側(cè)屏蔽層與PLC系統(tǒng)控制柜要共地連接，同時隔離變壓器二次側(cè)輸出線不得接地！
⑤、為防止電網(wǎng)的浪涌過電壓竄入PLC造成其損壞，可在PLC的電源輸入端接入壓敏電阻、浪涌保護器等吸收過電壓元器件，并使所用元器件的接地端和PLC的接地線分開接地。
產(chǎn)品承諾：
保?證?全新原裝進口,
保?證?安全準時發(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，橫河等進口品牌。 專業(yè)銷售進口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)實力庫存商家
SEMPREX 12-9068.20 X & Y AXIS, MICROSCOPE PART.
PHILIPS PM6303 PM 6303 Programmable Automatic RCL
KLA INSTRUMENTS HPG FRONT-END PROCESSOR CARD
KLA INSTRUMENTSBIT HPG RENDERING ENGINE CARD
KLA INSTRUMENTSBIT PLANE MERGE 073-044042-00 CARD
BIO-TEK EL404 EL 404 MICROPLATE AUTOWASHER
PACIFIC SCIENTIFIC 5240 INDEXER DRIVE 110VAC 1PH 60Hz
KOLLMORGEN ServoStar SP CP303250 SERVO AMPLIFER
NIB EPSON SPARE LAMP ELPLP25H REPLACEMENT PROJECT. LAMP
FUJI FH1002 VIDEO CONSOLE BOARD CARD GOOD CONDITION
AGILENT HP 6544A DC POWER SUPPLY 0~60V / 0~3.5A
OLYMPUS CH CHB BINOCULAR STEREOZOOM MICROSCOPE 4OBJE
REXROTH INDRAMAT ECODRIVE Cs DKC10.3-012-3-M?GP-01VRS
COGENT LIGHT XL ILLUMINATOR LIGHT SOURCE A1-90094-A
TEXAS INSTRUMENTS 560-2126 RCC CARD
TEKTRONIX 2247A 100MHZ COUNTER/TIMER OSCILLOSCOPE
HAWLETT PACKARD 24 OMNICARE M1205A WITH M1041A MONITOR.
REXROTH INDRAMAT ECODRIVE Cs DKC10.3-008-3-M?GP-01VRS
BALDOR MA9008 SOFT START SOLID STATE MOTOR CONTROL.
DINAMAP PRO 300 CRITIKON MONITOR VITAL
OMRON SYSMAC C60P PROGRAMMABLE CONTROL
YASKAWA SERVOPACK SGDL-08AS SERVO CONTROLLER 750W 11AMP
NEC GLG3120A GAS LASER HEAD
YOKOGAWA PLC F3SP35-5N SEQUENCE CPU W/LD01-ON,LC11-?IN
YOKOGAWA PLC F3SP35-5N SEQUENCE CPU W/LD01-ON,LC11-?IN –
IAI Corporation DS Controller Model DS-S-C1-EU
RELIANCE ELECTRIC SERVO MOTOR BDC-T330-BVL, H25F011B46.
NIB EPSON SPARE LAMP ELPLP21 REPLACEMENT PROJECTOR LAMP
TOSHIBA PROSECT1 MDR28 MICRO PLC WITH CONSOLE HP911
Micro Programmable Controller
OWIS GmbH MOTORIZED 6 POSITIONING SYSTEM WITH MOTORS.
TEXAS INSTRUMENTS 560-2120 DISCRETE CPU UNIT
Texas Instruments 560-2130 64Kb Global Memory Card
IWATSU DS-6121 DIGITAL STORAGESCOPE 2CHANNEL PARTS
ERNST SA 6814 PORTABLE UNIVERS METAL HARDNESS TESTER
MOTION SCIENCE DHBX5006HX 2 AXIS SERVO AMPLIFIER
YOKOGAWA PLC F3SP35-5N SEQUENCE CPU W/RS22-ON/LC11-?IN
RION PRECISION MEASURING LEVEL METER NA-80
YASKAWA CIMR-G3A20P7 616G3 3PHASE 220VAC INVERTER.
SCHNEIDER TSX QUANTUM 140 AVI 030 00 ANALOG PLC MODULE.
ALLEN BRADLEY INDUSTRIAL TERMINAL MONITOR 1770-TA
Applied Biosystems 785A Programable Absorbance Detector
ALLEN BRADLEY MINI PLC-2/15 PROGRAMMABLE CONTROL SET
MICROSCOPE X & Y AXIS, MICROSCOPE PART.
TEKTRONIX TAS 465 DUAL CHANNEL OSCILLOSCOPE 100 MHZ
CORRECT TOKYO SEIWA OPTICAL 596258 MICROSCOPE PARTS .
MARQUETTE EAGLE 3000 MULTI-PARAMETER PATIENT MONITOR
DYNONICS SMITH+NEPHEW DYOBRITE 3000 LIGHT SOURCE
PHASE METRICS 550440000 PS5000 POST AMPLIFIER 040440.
PROQUIP INC 550306000 SPINDLE CONTROL.
DATEX ENGSTROM CPU BOARD AW 4F 889467-2.
BAUSCH & LOMB MICROSCOPE II INSPECTION MICROSCOPE
HP HEWLETT PACKARD 4745A PAGEWRITER II
OPTO ZOOM 70XL MICROSCOPE LENS S/N A 42559 & 1.0X ACCE.
COLIN PLUSEMATE SPHYGMOMANOMETE?R BX-5
RKC FAREX SRM SR Mini HG SYSTEM H-PCP-A-14N-M*C?A
Siemens Simatic S5 6ES5 441-8MA11 W/Bus Module700-8MA11
CE WHITE MOUNTAIN DSP-ICE REV 1.0 PCI MATCHMAKER S5920Q
Hermle Z 160 M Microcentrifuge with 18 Slot Rotor 230v
Texas Instruments 560-2130 64Kb Global Memory Card
Leitz 513578 Discussion Tube
HEWLETT PACKARD 21211B, 5.0MHz PHASED SECTOR TRANSDUCE
SUPER VEXTA ORIENTAL MOTOR INTELLIGENT DRIVER UI215G.
FUJI FSC-30C IC CARD 4MB BOARD CARD WITHOUT MEMORY CARD
PARTICLE COUNTER MEASURING SYSTEM ULPC-FMPC-.1
HORIBA CM-210 CM-210-AC HYDROFLUORIC ACID MONITOR
INDUSTRIAL FIBER OPTICS IF-HN08M 1.0 Milliwatt
TERAOKA TPB-1421-3 DRIVER BOARD CARD PCB CARD.
OMRON SYSMAC C20H PROGRAMMABLE CONTROLLER
HP 24 OMNICARE M1205A WITH M1041A MONITOR REPAIR UNIT.
REXROTH INDRAMAT MSM040B-0300-NN?-MO-CC1 750W
INSPECTION MICROSCOPE 4 POSITION AUTO TURRET.
SANYO DENKI BL SUPER PZ SERVO AMPLIFIER PZ0A150HP66SH0.
supply 220 vac 150amp 3 phase.
CYBER TRON 2-ACHSS TEUERUNG PANEL W/ Z&B M3 UNIT PANEL
HONEYWELL UDC 6000 PC6002-U-OAP-50?-0-0R CONTROLLER.
HILGER & WATTS PENDULUM CLINOMETER MODEL TB108 RPI 505
AEMC WHEATSTONE BRIDGE #140.100
FUJI ELECTRIC TEK DYNAMICS VM1730A BOARD GOOD CONDITION
SUPERIOR ELECTRIC SLO-SYN 230-EPI INDEXER DRIVER 110V.
FUJI AVAL VME-520 MCIF-16 BOARD CARD GOOD CONDITION
TOPWARD DUAL TRACKING DC POWER SUPPLY 6303D
KIMMON CD4163R-F 1520KV HELIUM CADMIUM LASER HEAD
OLYMPUS IW-1 VIDEO BORESCOPE ANALYZER
OPTRONIC LABORATORIES 740-1C AUTOMATIC WAVELENGTH DRIVE
98D XC-999 DC12V,20MM CCD COLOUR VIDEO CAMERA 2.8/50MM.
FLIP DISPLAY SMARTCORE PAGE DISPLAY UNIT CARD
Melles Griot optical Laser Power Meter 13 PDC 001
YASKAWA SERVOPACK DR2-07ADY200 SERVO DRIVER 200VAC
GW LABORATORY DC POWER SUPPLY GPR-6060D 6A/60V
NAIS NATIONAL PC FP3 POWER/CPU UNIT COMPELETE SET.
KLA INSTRUMENTS DUAL STEPPER DRIVER 710-663106-000
HP – AGILENT 16500A LOGIC ANALYSIS SYSYTEM W/ MODULES
UNIVERSAL WAFER HANDLING CONTROL UNIT
DADE IMMUFUGE II DIGITAL CENTRIFUGE WORKS.
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)實力庫存商家
18150087953 點擊撥打電話聯(lián)系我們