PLX115/270

PLX115/270

PLX115/270

PLX115/270

4、 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。

FOXBORO E20S-I2FB6 USPP E20SI2FB6

FOXBORO E20S-V2FB6 USPP E20SV2FB6

FOXBORO P0400VP USPP P0400VP

FOXBORO E20S-I3FB6 USPP E20SI3FB6

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FOXBORO G0113HX NSPP G0113HX

FOXBORO 220S-2F6 USPP 220S2F6

FOXBORO 2AX+DYC NSFP 2AXDYC

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FOXBORO 130M-N4-ECRB USPP 130MN4ECRB

FOXBORO 2AI-F2V NSFP 2AIF2V

USED FOXBORO P0960GC WORKSTATION PROCESSOR 30 (TR-1)

NEW FOXBORO P0913PS DUAL FLOPPY DISC DRIVE I/A SERIES PLC CARD REV B 55379

FOXBORO DCS P0960AW CP30

Foxboro Century OVA-108 Flame Ionization Detector

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FOXBORO 130FB-N4 USPP 130FBN4

FOXBORO 130FB-N4-A USPP 130FBN4A

FOXBORO 202S-10-SSNSSSSSSN USPP 202S10SSNSSSSSSN

FOXBORO 130ZY-N4 USPP 130ZYN4

FOXBORO D0137KU USPP D0137KU

FOXBORO D0143WE USPP D0143WE

FOXBORO G0113HX USPP G0113HX

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FOXBORO A2047VE USPP A2047VE

FOXBORO FX-130F-N4 NSFP FX130FN4

FOXBORO 122-FE USPP 122FE

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FOXBORO 130F-N4 USPP 130FN4

Foxboro I/A Series Cards P0903ZE, P0902UT, P0400DA, w/cables term. in an assem.

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FOXBORO 2AP-MUL NSFP 2APMUL

FOXBORO 43AP-FA42C-TA1A NSFP 43APFA42CTA1A

FOXBORO 2AX-MUL NSFP 2AXMUL

4 TIX New England Patriots vs HOU Texans 12/10 Gillette Stadium Sect-132

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FOXBORO S-02TI VORTEX FLOW METER

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WITH UNIT MANUAL AND INSTRUCTIONS

YAMATAKE 51301880-100  51301880100

WESTINGHOUSE Y60M24T30N  Y60M24T30N

WESTINGHOUSE WHUN31  WHUN31

WESTINGHOUSE PC-700A-10-103003  PC700A10103003

WESTINGHOUSE PC-1250-1042  PC12501042

VALMET A4400007D  A4400007D

VALCO CINCINNATI 084XX512  084XX512

UBE INDUSTRIES DDVC/HV-J1  DDVCHVJ1

TOSHIBA VT130E3U430K  VT130E3U430K

TELEMECANIQUE XGSC5142311  XGSC5142311

TELEMECANIQUE TSX-P107455  TSXP107455

TELEMECANIQUE LC1-F5004  LC1F5004

TECHNOTRANS 420.29.4500  420294500

TB WOODS WFC4040-0CHT  WFC40400CHT

SYMAX 8030-CRM-565  8030CRM565

STROMBERG USART-86-INT  USART86INT

STI MC47LR-12-1200-LCM100-10X-10R-RM1  MC47LR121200LCM1

STI 70016-1189  700161189

SQUARE D MHP3-6400  MHP36400

SQUARE D MHL3670035DC2351  MHL3670035DC2351

SQUARE D ME36500LS  ME36500LS

SQUARE D KCL341252361  KCL341252361

SQUARE D HU364DS  HU364DS

SIMPLEXGRINNELL 562-351  562351

SIEMENS SMP51-F  SMP51F

SIEMENS DT062UW  DT062UW

SIEMENS 6RA2-418-2FS22  6RA24182FS22

SIEMENS 6GK1610-0TA01  6GK16100TA01

SIEMENS 6FC5112-0EA03-0AA0  6FC51120EA030AA0

SIEMENS 6ES7-623-1CE01-0AE3  6ES76231CE010AE3

SIEMENS 6ES7-416-2XK02-0AB0  6ES74162XK020AB0

SIEMENS 6ES5-955-3LF41  6ES59553LF41

SIEMENS 6ES5-945-7UA11  6ES59457UA11

SIEMENS 6ES5-944-7UB21  6ES59447UB21

SIEMENS 6DS1-144-8AA  6DS11448AA

SIEMENS 6DS1-106-8AA  6DS11068AA

SIEMENS 6DD1-640-0AC0  6DD16400AC0

SIEMENS 6AV76120AA120BF0  6AV76120AA120BF0

SIEMENS 1LAC03244FC21  1LA03244FC21

SIEB & MEYER K-258931  K258931

SCHWEITZER ENGINEERING 0387A0105X2X52X  0387A0105X2X52X

REXROTH R911308106  R911308106

REXROTH DM-15K-4101-D  DM15K4101D

REXROTH 1070070309  1070070309

RELIANCE ELECTRIC S-6R9009  S6R9009

RELIANCE ELECTRIC S6R-9006  S6R9006

RELIANCE ELECTRIC 803456-51R  80345651R

RELIANCE ELECTRIC 803456-21  80345621

RELIANCE ELECTRIC 802220-12RG  80222012RG

RELIANCE ELECTRIC 6V41-096TA  6V41096TA

RELIANCE ELECTRIC 6754748-BH-T1  6754748BHT1

RELIANCE ELECTRIC 6693885-M6-T1  6693885M6T1

RELIANCE ELECTRIC 5VU41040  5VU41040

RELIANCE ELECTRIC 45C-15C  45C15C

RELIANCE ELECTRIC 40V2060  40V2060

RELIANCE ELECTRIC 3RA2004  3RA2004

RELIANCE ELECTRIC 0-60028-2  0600282

RELIANCE ELECTRIC 0-56303  056303

RELIANCE ELECTRIC 0-52854-2  0528542

RELIANCE ELECTRIC 0-51864-2  0518642

ORMEC GN3-20/2MCI  GN3202MCI

OMRON F150-C10E  F150C10E

OMRON CV500-VP227-E  CV500VP227E

OMRON CS1H-CPU67H FNFP CS1HCPU67H

OMRON CFP0269  CFP0269

OMRON C200H-NC211 FNFP C200HNC211

MTS SYSTEMS CO MPM-1904R-1198  MPM1904R1198

MOTOMAN ROBOTICS USASEM-15YRS11  USASEM15YRS11

MOTION ENGINEERING INC PROSERIAL-800  PROSERIAL800

MOTION ENGINEERING INC DSPPRO-SERIAL  DSPPROSERIAL

MOORE PRODUCTS 39MBXNAN  39MBXNAN

MODICON PK-M909-002  PKM909002

MODICON MM-PMC1-110  MMPMC1110

MODICON AS-P420-61M  ASP42061M

MODICON AS-P420-510  ASP420510

MODICON 110-CPU-612-04 FNFP 110CPU61204

MITSUBISHI MC256XP  MC256XP

MITSUBISHI FRSX2-18.5K  FRSX2185K

MITSUBISHI A-985-GOT-TBA  A985GOTTBA

MITSUBISHI A273-UH-CPU  A273UHCPU

MEASUREX 09437703  09437703

MEASUREX 05373000  05373000

MEASUREX 053630-00  05363000

MAXON SF-BRN-RSP  SFBRNRSP

LEXIUM MHDA1198N00  MHDA1198N00

LANDIS & GYR PXC36-EF.A  PXC36EFA

JOSLYN CLARK VC31U03415-76  VC31U0341576

JOHNSON CONTROLS NU-NCM300-700  NUNCM300700

ITE SIEMENS WMS12U  WMS12U

ITE SIEMENS LMXD63B700  LMXD63B700

ISSC 9010-036  9010036

INDRAMAT TDM3.2-020-300-W0  TDM32020300W0

INDRAMAT TDM-1.2-50-300-W1-115  TDM1250300W1115

INDRAMAT TDM1.2-50-300-W1  TDM1250300W1

INDRAMAT TDM1.2-050-300-W1-000  TDM12050300W1000

INDRAMAT MDD-112D-N-030-N2M-130PB2  MDD112DN030N2M13

INDRAMAT MDD093C-N-040-N2M-110GB0  MDD093CN040N2M11