140-CPU-434-12

140-CPU-434-12

140-CPU-434-12

140-CPU-434-12

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。

KEYENCE PHOTOELECTRIC SENSOR W/ TIMER ~PW-61J~ 

Keyence KV-D30 HMI Operator Interface Free Ship

Keyence Safety Light Curtain PJ-50A R/T (V8)

KEYENCE CORP AP-V41W NSFP APV41W

KEYENCE CORP AP-V42W NSFP APV42W

Keyence FD-A50 Flow Sensor w/ FD-V40A (A1)

Keyence SJ-S020W spot-type STATIC ELIMINATOR

Keyence RV2-52 RV252 Controller

Keyence Safety Light Curtain PJ-V22T V22R (V8)

KEYENCE CORP KL32CT USPP KL32CT

Keyence Proximity Sensor EG-530 (EG530) NIB!

KEYENCE CORP LX2-110T NSPP LX2110T

KEYENCE CORP OP-7534 USPP OP7534

KEYENCE CORP SH-302 NSFP SH302

Keyence PS-201 Photoelectric Sensor/Switch, Transmitter/Receiver, New

Keyence RC-12 RC12 Counter

Keyence KV-40R 81 30068

keyence PIG70 Luster Recognition Center

Keyence KZ-80MT Free Ship

Keyence RV2-52 High Speed Multi-Function Digital Meter

KEYENCE BL-V35E *NEW IN BOX* 

KEYENCE Controller KV-40DT+KV-E4XT for industrial machine use

KEYENCE Controller PLC KV-80R for industrial machine use

KEYENCE GT2=H12 High Accuracy Contact Sensor **NIB**

Keyence AT2-301 AT2301 Sensor Controller

KEYENCE CORP CA-DRR4F USPP CADRR4F

KEYENCE KV-300 CPU CURRENT COMSUMPTION 160mA MAX

GT2-H12 Keyence New In Box Contact Sensor GT2H12

KEYENCE RV2-52 HIGH SPEED DIGITAL METER

KEYENCE MV-20 Servo Driver

Keyence Proximity Sensor EG-530 ( EG530 ) New In Box !

KEYENCE CORP FS-T2P NSFP FST2P

Keyence PJV91 PJ-V91 Module - New, No Box

KEYENCE CORP FT-50AWP USPP FT50AWP

Used KEYENCE LT-8120 Laser Displacement Meter Sensor

KEYENCE KV-300 CPU CURRENT COMSUMPTION 160mA MAX

GT2-H12 Keyence New In Box Contact Sensor GT2H12

KEYENCE RV2-52 HIGH SPEED DIGITAL METER

KEYENCE MV-20 Servo Driver

Keyence Proximity Sensor EG-530 ( EG530 ) New In Box !

KEYENCE CORP FS-T2P NSFP FST2P

Keyence PJV91 PJ-V91 Module - New, No Box

KEYENCE CORP FT-50AWP USPP FT50AWP

Used KEYENCE LT-8120 Laser Displacement Meter Sensor

KEYENCE CORP PZ-51 NSPP PZ51

KEYENCE GV-B01, FU-57TE, FS-V32, LV-H62 = 8PIECES

Lot of 2 Keyence C12H-T Transmitter/Receiver

Keyence- BL701 Hi-Res Fixed Position Barcode Laser - Very Nice!

Keyence CV-070 CCD machine vision camera

KEYENCE PIC92 *NIB*

KEYENCE LK-2101 LASER DISPLACEMENT SENSOR CONTROLLER

KEYENCE KV-P3E new (A1)

KEYENCE CORP PJS08 LIGHT CURTAIN

KEYENCE CORP SL-C16H-R Light Curtain Receiver Warranty Fast Shipping!

keyence cv-120 cam controller

Keyence CV-501 Vision System Controller

Keyence BL-600 Barcode Scanner w/ BL-U2 Power Supply

Keyence Mounting Stand 

PLC BASE UNIT KEYENCE MODEL# KV-24R WITH 4- KV-8R

Keyence SL-V80HM-T Light Curtain Transmitter 63"

keyence AP-40 Pressure Sensor with Seperate Amplifier (New)

KEYENCE - CONTROL WITH BATTERY - Model #: SJ-R01

KEYENCE BL-V35E Bar Code Display Interface NIBBO

keyence cu-21ta control unit relays

KEYENCE CF-P100 PARTICLE SENSOR CFP100 

KEYENCE LED BEAM RED CA-DBR13 NIB

KEYENCE VT3-V7 HMI Touchscreen Glass NEW Free Ship

KEYENCE HIGH PRECISION CONTACT SENSOR GT2-A12 GTSA12

KEYENCE Light Curtain Sensors 10 ea) PJ-55A Receivers 10 ea) Tramsmitters NICE

KEYENCE CZ-V21P PHOTOELECTRIC DIGITAL RGB AMPLIFIER 

Keyence CZ-H32 RGB Fiberoptic Sensor NEW!!

Keyence VT-10TB Touchscreen Glass NEW Free Ship

Keyence VT-10SW Touchscreen Glass NEW Free Ship

Keyence KV16R Small PLC Controller

KEYENCE BL-U2 WITH BL-601HA BARCODE SCANNER

KEYENCE LV-H42 LASER SENSOR * NEW

Keyence CV-301 Machine Vision Controller RS-232C

KEYENCE LV-11SBP ULTRA-COMPACT DIGITAL LASER SENSOR AMPLIFIER PNP OUTPUT

NEW KEYENCE FS-T2P ONE-TOUCH CALIBRATION AMPLIFIER

NEW KEYENCE FS-V21RP DIGITAL DISPLAY AMPLIFIER 

NEW KEYENCE LENS HR F1.4/16MM MACHINE VISION

Keyence BL-501H Barcode Scanner and Controller BL-U1 w/ RS232C

Keyence LX2-V10W LX2-V Micrometer Amplifier Optical Axis Alignment Optics Laser

Keyence T1DC1-04424-10003 TF2-31 Temperature Controller

KEYENCE FS-V11 FU73 FIBER OPTIC AMPLIFIER SENSOR LOT 5

KEYENCE FS-V12 FU73 FIBEROPTIC AMPLIFIER SENSOR LOT 5

KEYENCE BL-U1 BARCODE READER POWER SUPPLY UNIT

Keyence RGB Photoswitch CZ-K1P Color Match #19215

Keyence BL-H60WE Manual and Software for BL-600 Series Laser Bar Code Reader

Keyence BL-600HA Super Compact Laser Barcode Reader Scanner Used

Keyence Photo-Electric Sensor PS-201

Keyence Photoswitch CZ-K1P #19214

NEW FACTORY BOX KEYENCE LV-21AP HIGH POWER DIGITAL LASER OPTIC SENSOR PNP LOGIC

NEW Keyence Laser Fiber Optic Sensor FS-L71 Brand New in Box - BNIB

Keyence Intelligent Extension Unit SL-R12EX *NEW #22287

Keyence SL-R12EX Intelligent Extension Unit

Keyence KV-40R Free Shipping

KEYENCE Fiber Sensor Amplifier FS-N11MN FSN11MN New in box free ship

KEYENCE MV-21 MV21 Servo Drive Amplifier FreeShip 

KEYENCE PLC KV-40AT Free Ship

Keyence BL-901 Laser Scan Bar Code Reader High Discrimination Model

Keyence PI-C92 Color Recognition Fiberoptic Sensor NIB

KEYENCE PJ-V90 LIGHT CURTAIN EXPANSION UNIT

KEYENCE LV-S41 LVS41 Free Ship

Keyence NR-255 NR255 Data Acquisition System

Keyence RF-550 Free Ship

KEYENCE FD-MA1A Capacitance Electromagnetic Flow Sensor

Keyence JC-500 Digital Load Indicator JC500

KEYENCE FD-MA1 Capacitance Electromagnetic Flow Sensor

Keyence CV-020 Machine Vision Camera and 50mm Lens

PLC Keyence MV-L40 MVL40 Free Ship

KEYENCE LV-H42 Laser Sensor New Free Ship

GT2-71N Keyence New In Box Photo Switch GT271N

KEYENCE CORP 6518-501 USPP 6518501

KEYENCE CORP DH-320 NSFP DH320

keyence cv-m30 display

Keyence BL-U2 with BL-651HA Laser Scanner

Keyence VS-160 Voice Alarm Recorder VS160

Keyence Laser Displacement Controller, LK-2001, Nice 

Keyence Sensor FU-10 (FU10) NIB!

KEYENCE CORP LX2-11R USPP LX211R

E38 Keyence Infrared Thero Sensor FT-H20

KEYENCE CORP LV-11SA NSFP LV11SA

KEYENCE CORP LVS31 NSFP LVS31

6216 KEYENCE LX2-V10W LASER CONTROLLER

PLC KEYENCE KZ-350 KZ350 Free Ship 

KEYENCE HA-90 HA-90 

KEYENCE FD-81 Free Ship

Keyence corporation AT2-54 Precision contact displacement sensor new 

KEYENCE CV-070 MACHINE VISION CAMERA *NEW OUT OF BOX* 

KEYENCE KZ-80R PLC Free Ship

Keyence MT-150 Digital Display Interface Free Ship

Keyence EX-502 EX-500 Series Sensor Controller FreeShip

Keyence LX2-V10 Laser Trubeam Amplifier

2 NEW KEYENCE FIBER OPTIC CABLES 4MM HEAD MODEL FU-66Z

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