3BDS005799R1_厦门海通华业科技有限公司

3BDS005799R1

变频器运行时对PLC干扰应注意的问题

变频器运行时会对周围电气设备（包括P L C ）产生较强的电磁干扰，同时变频器主电路断路器等开关器件动作时也会影响PLC 的正常工作。为防止变频器运行时对PLC干扰，变频器与P L C 相连接时应该注意以下几点：

（1）对PLC 本身应按规定的接线标准和接地条件进行接地，而且应注意避免和变频器使用共同的接地线，且在接地时使二者尽可能分开。

（2）当电源电压波动大，谐波成分多时，为抑制谐波干扰，应在PLC 的电源模块及输入/ 输出模块的电源线上接入噪音滤波器或者隔离变压器。如果干扰仍严重，应考虑在变频器主回路中接入电抗器、变压器和噪音滤波器等措施。

（3）变频器和P L C 安装在同一电控柜时，应尽可能使与变频器有关的电缆和与PLC 有关的电缆分开安装，尤其是连接变频器的强电电缆与连接PLC 的弱电电缆更要分开安装。

4 结束语

变频器和P L C 间连接问题，涉及到数字量信号连接、模拟量信号连接以及避免干扰应注意的问题；在实际应用中，两者间的连接还涉及到用弱电信号控制强电的问题。因此，应引起重视，避免干扰造成变频器、PLC 的误动作；避免连接不当造成PLC 或变频器的损坏。

如果购买单位的在质保日期一年内发现有质量缺陷的，可以进行一个免费维修或更换。

150-F251NBD数量2 42573

TPC070TD-B 1合

AB6916-C-203 10个

WAGO:750-504 2

234-4HE32-0XB0 1

板卡 ARND-4065B 2

VXZ242FZ2AXB 个 3

VQ5301R-51，DC24V 个 2

A75-22-00*380-400V 50Hz/400-415V 60Hz 2个

5D3A1121P010 ARND-3119A数量2

TBU810 1

IK9173 1 提供订货号 0049350

P642218A1M0048J ---------------------

压力变送器ETM-B01SAA1-05 2

PALL HH9021A12DPSWD 1

魏德米勒 DRM270110L 8教110V 5

米斯特主令控制器 MST-33 FN 18 AK VR IPZ 2

HA-LP11K1MB 1个

IK9173 1 提供订货号 0049350

ACS550-01-08A8-4+N7511+J404 1

FR-E720-0.2K 63

FR-A7NC 63

QJ71E71-100 3

Q312B 3

Q61P 3

QJ61BT11N 6

Q13UDVCPU 3

QJ71GP21-SX 3

QJ71GP21S-SX 3

AJ65SBTB1-32D 6

AJ65SBTB1-32DT 3

AJ65VBTCE3-32D 12

AJ65VBTCE32-32DT 51

A6CON-L5P 12

A6CON-PW5P 12

A6CON-TR11 3

IK-FCKLK8-4p-0.75kw 1

压力变送器ETM-B01SAA1-05 2个

25473-2 004 1个

5D3A1121PO1O ARND-3119A 1

CEMS取样泵

1. OMRON RFID系统读写器 V680S-HMD63-EIP，38个；

2. OMRON，V680-D1KP54T ，38个；

3. OMRON EtherNet 通信线缆 XS5W-T421-GMC-K，38个

SCP 000-001-4A 3151 NITRADE ETCH CONTROLLER

SCP 00004553 SCP MCS I/O EXPANSION

SCP 00006587-00 9200, MODULE, MEMORY

SCP 00009674-00 VALVE, SOL 120V 60HZ 3/8FP 100

SCP 00014262 ASSY,PRS,AWB,AGIT,ACT

SCP 00014643-00 MOD,CHEM,MCS-E

SCP 00017133-01 CONTROLLER FIRESENTRY

SCP 00018633-00 CONTROLLER,MCS,ARUW/OLATCH

SCP 00018725 HCU 1 W/O LATCH

SCP 00018884-01 COMB,ELEVATOR,V-SHAPED

SCP 0002084-00 CONTROLLER,SUPER,PCU

SCP 00022310-00 MOTOR,ELECTROCRAFT,S-3016

SCP 00041848-00 VLV PAIR,3WAY SIG PILOT, FESTO VL/O-3-PK-3X2

SCP 00045893-00 COMB, WAFER 8" LMC

SCP 00046943-00 VALVE, PFA

SCP 00047032-00 VALVE, PFA 617/10/D 7524

SCP 00047063-00 0615300 PT100 3-WIRE DOUBLE

SCP 00047068-00 3-WIRE DOUBLE PT 100

SCP 00047409-00 INDICATING PRESSURE MANOMETER GAUGE

SCP 00047486-00 CAPACITIVE SENSOR

SCP 00048115-00 0615299 PT100 3-WIRE DOUBLE

SCP 00048806-00 10005732 RETRO-REFLECTIVE SENSOR WL12L-2B530A01

SCP 00049655-00 LIMITER, TEMPERATURE PT100

SCP 00052634-00 VALVE, CHECK 1/2TUX

SCP 0019979-00 PWRSUP,DC,SWITCH

SCP 0213171 BALL BEARING 17/40/12 6203-2RS1

SCP 0220816 ANGULAR BALL BEARING

SCP 03-0021-001 PCB, ADAPTOR 3 COM ETHERLINK

SCP 0610189 AUXILIARY CONTACT COMPONENT

SCP 0610190 AUX.CONTACT,COMPONENT

SCP 0610482 CONTACTOR/DILOM

SCP 0610722 SENSOR INDUCTIVE/IAS-10-23-S

SCP 0611209 INTERFERENCE INVERTER/RC-B-DIL

SCP 0611370 DC-DC CONVERTER/GLS1-2415

SCP 0611634 AUX.CONTACT COMPONENT

SCP 0613270 POWRER SUPPLY MODULE 10/20KW PARKER

SCP 0613486 AMPLIFIER/KHD2-SS1/EX2

SCP 0613534 CONTACTOR DILOAM-G KLOCKNER-MOELLER

SCP 0613641 AUX. CONTACT COMPONET

SCP 0613718 TEMPERATURE CONTROLLER/VTEMP

SCP 0614026 AUX.CONTACT COMPONENT

SCP 0615397 FERROCODE CONTORL MONITOR

SCP 0615398 EMERGENCY STOP CONTROL GEAR

SCP 0615773 CONTACTOR/DIL 1M 24V 50/60 HZ

SCP 0615804 STROKE COUNTER

SCP 0615806 LEAKAGE SENSOR

SCP 0615873 AUX.CONTACT COMPONENT

SCP 0615936 ANALOGUE COUPLER/MUUW 44201

SCP 0615992 CONNECTOR,M CABLE

SCP 0616004 CONTACTOR RE3-4-001/5

SCP 0616127 CONTACTOR/DIL 4M 120V 60HZ KLOCKNER-MOELLER

SCP 0810901 Enclosure, Frequency Generator

SCP 10-00-1460 TANK, QTZ, SULPH, QRT W/AQI

SCP 10-000-0225 TANK QUARTZ QZ 4-5E A2001 00R

SCP 10-000-1460 TANK,QTZ,SULPH,QRT W/AQi

SCP 10-011-0395 COOLING TOWER SEAL

SCP 10024889 FILTER, HEPA

SCP 1011451A ACTUATOR,BRG,400MMLG,300

SCP 1020252A-00 COLLAR, FOR HF PUMP MOTORS

SCP 1021144A-00 FTG, PLUMBING, ADPTR, PVDF, SC1 HEAT EXC

SCP 110501475 PLATE

SCP 114-028-4AX ARM, ATS TURBO HORIZ NITRI 1-6-IN

SCP 114-029-4AX ARM, ATS TURBO, HORIZ NITRI, 2-6-IN

SCP 1140244A-00 ARM, A-TRANSFER, 6-IN, HOR2 WPP

SCP 1140274B ARM, ATS TURBO, VERT NITRI, 2-6-IN

SCP 127201009 POTENTIOMETER, POWER, CON

SCP 1411722 ASSY, END CAP PVDF(IN-LINE)

SCP 14262 ASSY PRS AWB AGIT ACT

SCP 150200361 BOARD, QUANTRONIX, SWITCH

SCP 170-151-1C PCB, Y-AXIS, INTERFACE

SCP 170-164-1B BOARD, UPPER, ARM, 9200A

SCP 170-190-1B ROBOT INTERCONNECT BD

SCP 171-461-1E PCB, WING SENSOR DRIVE

SCP 190-137-4A SENSOR HOME POS. BD

SCP 1900981B DIGI,BOARD

SCP 1901071A PCB,MCS,COMM TAP

SCP 1901231C PROBE RTD CLAIB/COMM REF

SCP 1901511C PCB, TRANSFER ARM INTERCONNECT

SCP 1901521C PCB,ROBOT,CONNECT,9400

SCP 1901531C PCB, COMMUNICATION INTERCONNEC

SCP 1901541C PCB, MAIN INTERCONNECT E 9400S

SCP 1901561C PCB, ELEVATOR COMB EMITTER

SCP 1901571C PCB, ELEVATOR COMB DETECTOR

SCP 1901581C PCB, BRAIN BOARD

SCP 1901581C-00 BOARD, BRAIN

SCP 1901701B ALARM SYSTEM CONTROLLER 9400SPS

SCP 217288 PULLEY, LEFT Z48

SCP 220100273 THERMOSTAT

SCP 2261571A-00 CABLE, MCS SINGLE I/O EXPANSION DATA

SCP 2262121A-00 CABLE, MOTOR INTERFACE

SCP 271-1D-00 SUB-ASSY 1300 RECIRC UNIT

SCP 2712997 GUIDE, 8"-50 LMC PVDF LID

SCP 2950031A CAM,AUTOPOSITIONER

SCP 300-00137 CPU,CME 100 MHZ INTEL 486

SCP 3130628A-00 SECS-2, MULTI, PORT, INTRFAC

SCP 3130881D HARD DRIVE, AVANTECH

SCP 3131101A-00 KEYBOARD,W/S,EUROTECH

SCP 3131761A SPLITTER

SCP 3210-04 PC BOARD,CFM I/O EXPANDER,3210-04R

SCP 326-038-1AR SUB-ASSY CNTLR LIFT OUT MODULE

SCP 3260394G CONTROLLER, NITRIDE ETCH, 3151

SCP 3260399G-00 CONTROLLER, 3151, NITRIDE ETCH

SCP 3260884R SUB-ASSY, ATS 8500 EPROM 3.1 W/CNTLR

SCP 3260934AC AMPLIFIER-AUTO TRANSFER

SCP 3261221B CONTROLLER,CHEM,DISP,200M

SCP 3261534A CONTROLLER, TEST DE

SCP 3261539A-00 TESTER,MCS,DEBUG,CABLE

SCP 3261571A CONTROLLER FOR 7550

SCP 3261728A-00 CONTROLLER BAM232 2 AXIS

SCP 3261821B CONTROLLER,CHEM,DISP,BD

SCP 327-013-1E CONTROLLER,MCS,CHEM,DISP

SCP 327-013-1ES CONTROLLER, MCS, CHEM, DISP

SCP 327-015-1DX MCS,ANALOG MOD ASSY (4-20MA) (P/N 3270151D)

SCP 3270011E CONTROLLER,MCS,PIM,8IN

SCP 3270021C CONTROLLER, MCS, ELEC SC

SCP 3270031B CONTROLLER,MCS,COMM S

SCP 3270041C CONTROLLER,MCS,SOL.,CARD

SCP 3270041C-00 CONTROLLER,MCS,SOL.,CARD

SCP 3270061C CONTROLLER, A-D MOD ASSY

SCP 3270061C-00 CONTROLLER,MCS,A-D,ASSY

SCP 3270081A CONTROLLER, MCS BASE

SCP 3270081E CONTROLLER, MCS BASE

SCP 3270081F SCP MCS BASE UNIT

SCP 3270081J SCP MCS BASE

SCP 3270081K SCP MCS BASE UNIT

SCP 3270081L CONTROLLER, MCS BASE

SCP 3270081M CONTROLLER,MCS,BASE S

SCP 3270088L SCP MCS BASE

SCP 3270088M SCP MCS E BASE MODULE W/SOLE

SCP 3270091G CONTROLLER,MCS,OPER S

SCP 3270101C MODULE, MEM

SCP 3270101D-00 MODULE,MEMORY,SCP

SCP 3270131E CONTROLLER, MCS, CH

SCP 3270151D CONTROLLER, ANALOG MOD(4-20MA)

SCP 3270161A PCB,MCS,COMM,TAP

SCP 3270201A-00 LATCH,PCU/ARU,ASSY

SCP 3270212B-00 CONTROLLER,SUPER,PCU

SCP 327029-1A CONTROLLER,HUC1

SCP 327029-1B CONTROLLER,HUC1

SCP 3270351A BOARD, EXP, I/O, MCS-E

SCP 3270452A-00 CONTROLLER, MEM MOD ASSY

SCP 335000088 HEATER, C3-56A

SCP 3413274 SCISSORS, MARANGONI

SCP 3470334A-00 LIFT ACTUATOR ASSY PH MODULES

SCP 3471512A PISTON,LID,VENT,9400

SCP 400-00283 FLOPPY/HARD DRIVE STORAGE MODULE

SCP 400138A LID PHOS AWB

SCP 4003-03 SWITCH,INDUCTIVE LIMIT

SCP 406-001-1A FLOW SWITCH FOR REFLUXER COOLING LINES 4

SCP 4090291A MONITOR VAPOR DETECT

SCP 4090861A ACTUATOR, CO2 BOTTLE SC

SCP 410-004-1C QUARTZ, COLLAR, PHOS MOD

SCP 410-080-4AX BRACKETS

SCP 412787 VALVE, NIRO 615/12/D 1375-2 PT

SCP 4180711AS GAUGE 24V 0-.25 MONITOR 4-5D

SCP 4270304A GRIPPER, FINGERS, 8IN, NEWPR

SCP 453-211-1AX HEATER BLOCK BASE

SCP 4530441A EXCHANGER, HEAT BEN

SCP 4532421A-00 TANK, QTZ 280V PLT-QTZ 6-IN DBL PH QZ-A1

SCP 4532541D-00 HEATER,BLOCK BASE,208V/1800W

SCP 4533161A-00 HEATER,PRS,9400

SCP 4641264C-00 MODULE POWER UNIT

SCP 47008-00 FLOAT, STEAG HOOD

SCP 47401-00 SWITCH, PRESSURE IN