A06B-1008-B702#8000

A06B-1008-B702#8000

A06B-1008-B702#8000

A06B-1008-B702#8000

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。

A4FO71/10R-PPB25N00   1

6ES5247-4UA21 

6ES5247-4UA31 

6ES5247-4UA41 

6SE3112-8BA40 

7NG3040-3JN00 

6ES5777-0BC01 

6ES5465-7LA12 

6ES5470-7LA13

6ES5498-1AA11 

6ES5498-1AA21 

6ES5498-1AA31 

6ES5498-1AA41

6GT2002-0AB00

6GT2002-0AA00

6ES5944-7UA22

6ES5390-0UA11    各一

A5E00158835     2

6SL3760-0DD00-0AA0     4

6SL3352-6BH00-0AA1      1

XPSAFL5130   1

315-6FF01-0AB0

326-1BK00-0AB0

326-1BK01-0AB0

6SN1146-1BB00-0EA1    1

T0-4-8441  2

IC697ALG320  2

IC694CHS392  1

IC695PSA040J  1

GPTF-4037A

GT1155-QSBD

2块ABB  RTAC-01C

1SVR040010R0000    1

YOKOGAWA SBSD  SBSD

YASKAWA ELECTRIC USADED-45-YR14  USADED45YR14

YASKAWA ELECTRIC JANCD-SV02C  JANCDSV02C

YASKAWA ELECTRIC JANCD-SV02B  JANCDSV02B

YASKAWA ELECTRIC CIMR-H110B.D-10  CIMRH110BD10

WHEDCO MTR-3S86-G-R-0-E-S  MTR3S86GR0ES

VEE ARC 931-048  931048

TYCOR PTYSXTY480YEDRSX  PTYSXTY480YEDRSX

TYCOR PTY-H-277/480-PD-4XTS  PTYH277480PD4XTS

TRIDIUM INC WEB-545I-AX  WEB545IAX

TREND IQ3-4002K4096  IQ34002K4096

TRANSTECTOR ACP100BW  ACP100BW

TEXAS INSTRUMENTS PLC VPU210-3105  VPU2103105

TELEMECANIQUE ATV-452D15  ATV452D15

TB WOODS DVC51000AXN0BG  DVC51000AXN0BG

TAYLOR ELECTRONICS 6214BZ10110  6214BZ10110

TAYLOR ELECTRONICS 6205BZ10000K  6205BZ10000K

TAYLOR ELECTRONICS 6205BZ10000  6205BZ10000

SUPERIOR ELECTRIC MX2000-2  MX20002

STROMBERG SAFT-101-C0N  SAFT101C0N

SQUARE D SED362000LSGET1A8  SED362000LSGET1A

SQUARE D MHL36600-1021  MHL366001021

SQUARE D 8903SVC63V81CC33F4TY1532  8903SVC63V81CC33

SQUARE D 8539-SFW44-V81CFF4H30P1TX11  8539SFW44V81CFF4

SIEMENS R15C02188  R15C02188

SIEMENS 6SL3-351-1AE33-1AA1  6SL33511AE331AA1

SIEMENS 6SE7-016-1EA61  6SE70161EA61

SIEMENS 6SE3-228-4DK40  6SE32284DK40

SIEMENS 6RA2-625-6MV30-0  6RA26256MV300

SIEMENS 6-RA-2610-6M30D  6RA26106M30D

SIEMENS 6GT2001-0CA10  6GT20010CA10

SIEMENS 6FX1-138-6BB01  6FX11386BB01

SIEMENS 6FM1-726-3BA00  6FM17263BA00

SIEMENS 6FM1-470-3BA25  6FM14703BA25

SIEMENS 6FM1-470-3BA20  6FM14703BA20

SIEMENS 6ES5-955-5LB11  6ES59555LB11

SIEMENS 6DD1-661-0AB1  6DD16610AB1

SIEMENS 6AV7-614-0AB12-0BJ0  6AV76140AB120BJ0

SIEMENS 1PH7107-2HD03-0BA3  1PH71072HD030BA3

SIEMENS 1GG5-162-0WX40-6HV3-Z  1GG51620WX406HV3

SICK OPTIC ELECTRONIC LMS-200-S60  LMS200S60

SCHWEITZER ENGINEERING SEL-121F-X-4256MHNB  SEL121FX4256MHNB

RELIANCE ELECTRIC FLEXPAX3000  FLEXPAX3000

RELIANCE ELECTRIC DDM-019X  DDM019X

RELIANCE ELECTRIC B/M-60001-1  BM600011

RELIANCE ELECTRIC B/M-60001  BM60001

RELIANCE ELECTRIC 86466-87T  8646687T

RELIANCE ELECTRIC 86466-87R  8646687R

RELIANCE ELECTRIC 57C-435A  57C435A

RELIANCE ELECTRIC 57C-435  57C435

RELIANCE ELECTRIC 45C-203  45C203

RELIANCE ELECTRIC 10P8171  10P8171

RELIANCE ELECTRIC 0-57435-G  057435G

RELIANCE ELECTRIC 0-52837  052837

RELIANCE ELECTRIC 0-52501-1  0525011

PANASONIC YB-020UDD  YB020UDD

NEMATRON CORP ICC-8L6-HS1-850  ICC8L6HS1850

MODICON MM-PMC3-100  MMPMC3100

MODICON MM-PMA2-400C  MMPMA2400C

MODICON I646-4  I6464

MODICON AS-509P-007  AS509P007

MODICON 141-MMS-425-01  141MMS42501

MIYACHI IS-471B  IS471B

MITSUBISHI HALP15K24BK  HALP15K24BK

MITSUBISHI FRZ220-22.0K  FRZ220220K

MITSUBISHI FR-SF-2-22K  FRSF222K

MITSUBISHI A2U-CPU-S1  A2UCPUS1

MICROSWITCH 82114930-50  8211493050

MICROSTAR LABORATORIES DAP3200A/415  DAP3200A415

MEASUREX 51403299-200  51403299200

MEASUREX 51402755-100  51402755100

MEASUREX 09437300  09437300

LAMBDA LK343A  LK343A

KRAUSS MAFFEI 5089880  5089880

KOLLMORGEN IND BDS4A-103J-0001-202A2  BDS4A103J0001202

KAIJO ELECTRIC 8801B-MR  8801BMR

JOSLYN CLARK 5DP9-9009-11  5DP9900911

JOHNSON CONTROLS NU-NCM300-1  NUNCM3001

ISSC 621-0022-VRC  6210022VRC

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

INDRAMAT MDD-112C-N-030-N2M-130PB0  MDD112CN030N2M1A

INDRAMAT MDD090C-N-030-N2L-110PB0  MDD090CN030N2L1A

INDRAMAT MDD-090B-N-020-N2L-110PB0  MDD090BN020N2L11

INDRAMAT MAC112C-0-ED-4-C/130-A-1/WI520LV/S005  MAC112C0ED4C1303

INDRAMAT 2AD132D-B350B1AS01/S007  2AD132DB350B1AS0

HONEYWELL R7510-B1003-4  R7510B10034

HONEYWELL R7510-B1003-2  R7510B10032

HOFFMAN ENCLOSURES AFMSC30248SS  AFMSC30248SS

HOFFMAN ENCLOSURES AFMSC20206SS  AFMSC20206SS

GOULDS PUMP AV2V50100D  AV2V50100D

GIDDINGS & LEWIS M.1016.9428-R9  M10169428R9

GIDDINGS & LEWIS 502-03944-00  5020394400

GENERAL ELECTRIC M60-K03-HLH-F8L-H6L-M5C-PXX-UXX-WRH  M60K03HLHF8LH6LM