IEMMU02_厦门海通华业科技有限公司

IEMMU02

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。

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6FC5851-1YC46-5YA8

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KV-XD02 1

KV-XH16EC 2

KV-XL402 3

KV-SAD04 1

TB-34C 4

US2:2017664-003 7

US2:2017660-001 2

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170M8650 2

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E5CC-QX2ASM-800 4

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KV-7500 1

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6ES7132-4BD32-0AA0 ，2

RQ68

RQ610B

RQ612B

VE4003S5B1/8 1

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MR-J3-20B 2个

731-4149-000 1.00

8800310030 1.00

QFM3171 4.00

ENA-60-2-T-24 1.00

OV IC34A-43P-200-LZS4 2.00

55427905 1.00

202P1K5T4E20H1XGXXXXSXXXXALBXCXXXXDX 1.00

俄罗斯

E3Z-LS86数量50

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HARTING HAN10B USPP HAN10B

HARTING HS12-HAN-E24M USPP HS12HANE24M

HARTMANN 131-AK-2 USPP 131AK2

HARTNESS INTL 30-460-44 NSPP 3046044

HARTNESS INTL 30-650-46 USPP 3065046

HARTNESS INTL 31-014-635 NSPP 31014635

HARTNESS INTL 35-315-078 NSPP 35315078

HARTNESS INTL 35-415-099 USPP 35415099

HARTNESS INTL 35-415-112 USPP 35415112

HARTNESS INTL 35-480-030 USPP 35480030

HARTNESS INTL 35-680-008 USPP 35680008

HARTNESS INTL 35-680-009 USPP 35680009

HARTNESS INTL 35-715-070 NSPP 35715070

HARTNESS INTL 64-500-018-02 USPP 6450001802

HARTNESS INTL 64-500-019-03 NSPP 6450001903

HARTNESS INTL D-4233 USPP D4233

HARTNESS INTL H-544 NSPP H544

HARWAL 17-40-10-A NSFP 174010A

HARWAL 17-40-10-A NSPP 174010A

HARWAL 25X47X10A NSFP 25X47X10A

HARWAL 25X47X10A USPP 25X47X10A

HARWAL 70X120X10 NSPP 70X120X10

HARWIL L-20 USPP L20

HAUNI 151-FA-20 NSFP 151FA20

HAURTIAN E164535 NSPP E164535

Have Several Extra Clean With Terminals And Doors.

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HAYWARD QV1T075TE NSPP QV1T075TE

HAZEMEYER C63-210 USPP C63210

HEARTLAND PRODUCTS HCT-09E0K03113 USPP HCT09E0K03113

HEECO 44710-H-101 NSPP 44710H101

Heidenhain 2 Axis Bidirectional Counter Table Top Display VRZ 731 B w/Manual

Heidenhain Monitor CRT 24237003 _ 242 370 03 _ BE 212 _ For Parts or Repair

Heidenhain Monitor CRT 24237003 __ 242 370 03 __ BE 212 _ 310KRBQAN 07

Heidenhain OPERATORS PANEL TE 2500C Control 26872412

HEIDWNHAIN DR. JOHANNES DIGITAL READOUT DISPLAY OPERATOR TNC 145 CS 22120141

HEINEMANN 009-18092 NSFP 00918092

HEINEMANN AA1-A3-0050-04J USPP AA1A3005004J

HEINEMANN AM12-020-04 USPP AM1202004

HEINEMANN AM1-A2-A-015 USPP AM1A2A015

HEINEMANN AM1-A3-A-003 USPP AM1A3A003

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HEINEMANN AM2-A3-A-033 USPP AM2A3A033

HEINEMANN AM2-Z74-2 USPP AM2Z742

HEINEMANN AM33-003-05 USPP AM3300305

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HEINEMANN JA1-A16-A-010 USPP JA1A16A010

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HELIPOT 53311-93-0 USPP 53311930

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HELWIG 80-378741 USPP 80378741

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Henkel Surface Technologies PA10F pump 3131

HENRY G DIETZ COMPANY 161-P1.3 USPP 161P13

HENRY TECHNOLOGIES 8-060-028 NSFP 8060028

HENRY TECHNOLOGIES 900205BT NSFP 900205BT

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HERGETH HOLLINGSWORTH SYSTEC OPERATOR 4177 PULT 226.3

HERION 18-013-212 USPP 18013212

HERION 18-013-214 NSFP 18013214

HERITAGE 59678 NSFP 59678

HERSEY MEASUREMENT COMPANY PANEL-MOUNT FLOW CONTROLLER MODEL 1030 57630-409

HEWLETT PACKARD IC IC2201 FNFP IC2201

HEWLETT PACKARD IC IC2212 FNFP IC2212

HEWLETT PACKARD IC IC3101 FNFP IC3101

HEWLETT PACKARD TEST & MEASURE 128558-001 NSPP 128558001

HEWLETT PACKARD TEST & MEASURE 431852-001 USPP 431852001

HEWLETT PACKARD TEST & MEASURE DA0AT3AB8D0 USPP DA0AT3AB8D0

HEWLETT PACKARD TEST & MEASURE HFBR2524 FNFP HFBR2524

Hewlett-Packard/Compaq 6432504-01 Graphical User Interface

HEYCO 3231 USPP 3231

HH FLOURESCENT 314-B USPP 314B

HIGH OUTPUT ALTERNATOR MODULE HIGH AMP 100A-200A-300A

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HIGH OUTPUT MARINE ALTERNATOR MODULE 150-300A

HIGH OUTPUT TAXI RV ALTERNATOR MODULE 150-300A

HIKARI JD130V-250W/BA15D NSFP JD130V250WBA15D

HILGE Q52 USPP Q52

HILTI 000501080 NSFP 000501080

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HILTI 2312774 NSFP 2312774

HILTI 2312774 NSPP 2312774

HILTI 50353 NSFP 50353

Hirata Teach Pendant Model H-3332

HIRATAROBOTICTEACHPENDANTH-3335

HIRATATEACHPENDANTROBOTCONTROLLERH-3332

HIRSCHMANN 14AGDM USPP 14AGDM

HIRSCHMANN 933-162-100 NSFP 933162100

HIRSCHMANN 933-162-100 USPP 933162100

HIRSCHMANN ELST-4012-PG9 NSFP ELST4012PG9

HITACHI 01-05-02 PCB Board

HITACHI AC OUTPUT MODULE LWO000

HITACHI Color Display 05-1540-00-RA-1 CDL150UX Looks

HITACHI CP31-A-10A USPP CP31A10A

HITACHI CP31-A-1A USPP CP31A1A

HITACHI CP31-A-7A USPP CP31A7A

HITACHI DISPLAY LCD PANEL SCREEN 9.7 LMG5278XUFC-00T D2

Hitachi H Series 64PT DC Output Module YTS24DH

Hitachi HIZAC POM-RW 16pt OUTPUT RELAY MODULE with removable terminals

HITACHI HM6264LP-15 NSPP HM6264LP15

HITACHI IC63C03YP FNFP IC63C03YP

HITACHI MONITOR PANEL SCREEN SC-1200 SC1200

Hitachi PLC Modules RY Output POJ-R DC Input PIJ-D

HITACHI REMOTE OPERATOR KEY PAD DOP-0A DOP0A

HITACHI S16-II 01-04-02/02 PCB Board

Hitachi Seiki HT20S CNC Lathe HT 20S ___ OPERATOR PANEL

HITACHI VK/VM-M.DIS I/O PCB

Hitachi YAGV 08H Analog V Out Output Module YAGV08H

Hitachi YDR20AH 16PTS. AC DC Output Module

HITACHI YTR24D3H TR SINK OUTPUT MODULE 64POINT PLC UNIT - TERMINAL WIRING BLOCK

HITACHI YTR24DH TR SINK OUTPUT MODULE 64POINT PLC UNIT - TERMINAL WIRING BLOCK O

Hitachi YTS48BH 32PTS. DC Output Module

Hitachi/Allen Bradley Video Monitor VM-122OU-S9

HitachiEH-YR16EHYR16RelayOutputModuleEH-150PLC

HITECH HMI PWS6600S-S Touch Screen

Hitech PWS 1720-STN

HITECHPWS6600S-STOUCHSCREENV20-19-12

HJ-162416NSFPHJ162416

HM807010NSFPHM807010

HMC5883L 3-Axis Digital Output Compass Magnetic Sensor Module