BMENOC0301C

BMENOC0301C

BMENOC0301C

BMENOC0301C

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。

124-0GC01-0AX0  4个

6ES7331-7KF02-9AJ0(含1个前连接器)   3

SPFCS01       1

IC694PWR321CA 3

microsonic?

Esf-1/CDF/SC超声波传感器    2个

RORZE MOTOR DRIVER　RD-122  2

IC695PSD040 ?2块

IC695CPU310 1块

IC694BEM331 1 块

IC695ETM001 ?1块

ABB  E320DU 100-320A

6SE7090-0XX84-0AB0             1

6SL3126-1TE23-0AA3西门子 数量1台

倍加福   VDM28-8-L-IO/73C/136        2

ABB  APOW-01C       2

THERAGEN-ETEX    Shaft     JZDP-D008-184      轴        1

松下 MHMJ042G1U   4

松下?MHMD082G1U?  4

松下?MHMJ082G1U?  4

松下?MBDHT2510E  ?12

松下?MBDKT2510E  ?6

松下?MADKT1507CA1  ?2

松下?MADKT3520E  ?2

松下?MADKT3520CA1   8

松下?MADHT1505E?  6

松下?MCDHT3520E?   1

松下?MBDDT2210003?  2

MDS-B-PJEX   1

METSEPM2120   1

WM 22W-IB70-CH-PRS   1

SIEH-M18B-PS-S-L-CR   4

SIFE-Q40S-PA-S-2L   2

ACB-2U-B985MW   1

141453ECD   1

51199494-100，honeywell放大器， 4个

BSBC-1200-0600-5551B  3

ROF1377936          4

sew MDX61B0220-503-4-00/0T    1

MXA81A-032-503-00/22KW   2

MDX61B0110-5A3-4-0T     1

DWYER 1950-0-2F   1个

TPC1063KCE 24VDC   1只

RM22UA33MR数量4

HC40X数量5

LD-B10-C220YFIC+BS(DC/AC)数量3

JDN180-220T15@24-D数量2

GD003－3数量5

UTBM-1；标称电压3.7V；充电限制电压4.2V；920mAh数量2

3EB2 020-7D数量2

GD002-1 V1.1；含程序数量20

D5000038   2

WF1055-06A0200GY 数量1

V200-18-E3XB SN:HF0102243     1

DCC-080      1

EL6731  5

EL3048  5

电机 LENZE 4481-ASTEN,  1  伦茨

MWLM-PR26H7S   12

PN7000

PN-400-SBR14-QFRKG/US/ V

Honeywell 6560010047  3块

R911307285   1

CSB01.1C-PL-ENS-EN2-NN-S-NN-FW

1762-IF4数量47个   面价 ：3378

6ES7512-1DK00-0AB0   1

7UT6121-4EB92-4BA0-L0A   2

7SJ8041-5EB90-1FQ0/CC-L0A   2

7SK8041-5EB96-3HE0-L0A   2

7SJ8041-5EB90-1FB0/CC-L0A   2

7SJ8041-5EB90-1HE0/DD   1

7SJ6242-4EB90-1FF4-GG-L0A   1

IP: 33-1-12 W/160W , TYPE:PTF 6100   15

3SB3000-2DA11   1

3UF7941-0AA00-0   1

USB-RS485-WE-5000-BT   1

3UF7010-1AB00-0    4

3UF7300-1AB00-0    5

3UF7930-0AA00-0   5

3UF7200-1AA00-0   4

3UF7932-0AA00-0   4

6SE7016-0TP50    1

6SE7340-1AH02-0AE0    1

6SL3210-5BE25-5UV0   3

6GK5208-0BA10-2AA3    1

3RW4076-6BB44    1

3RW4075-6BB44   1

6SL3210-1KE15-5UF1    1

6SL3224-0BE21-5UA0   1

6SL3224-0BE22-2AA0     1

6SL3224-0BE31-1AA0     1

6SL3210-1KE17-5UF1     1

Timken 40"OD / 32"ID Cylindrical Roller Bearing N-3155-C OIL GAS MUD PUMP NEW

New Timken T691-902A1 Roller Thrust Machine Race Bearing Heavy Duty

850A Timken Taper Bearing

XC2214C Timken Taper Bearing

Timken 39250-906A2 Precision Tapered Roller Bearing

9” Timken Tapered Roller Bearing NA130902 Standard Precision, Single Cone

TIMKEN 67388 905A8 precision tapered roller bearings new surplus

From China

Timken Imperial Taper Roller Bearing Cup 93125 93825

TIMKEN ROLLER BEARING 48286 90019 TRB-SB ASSEMBLY NIB

NEW 15" Timken Tapered Roller Bearing M249734H-20025

From Canada

Newly listedNew TIMKEN TAPERED ROLLER BEARING SET HH228340/HH228310, factory packaging.

From Russian Federation

TIMKEN TAPERED ROLLER BEARING EE514050 CUP 514110

Timken NA798-SW Cone Bearing

One-day shipping available

TIMKEN JL724348 C PRECISION TAPERED BEARING CONE

One-day shipping available

TIMKEN L217847 90064 TAPERED BEARING ASSEMBLY / L217847/L217810D

One-day shipping available

Timken HH923649 / HH923610 HH923649HH923610 Cone Bearing And Cup New No Box

One-day shipping available

NEW TIMKEN ROLLER BEARING HM252348 MADE IN USA

Timken 316 Tapered Roller Bearing 1-3/16" Bore USA

Timken JHM534149 Bearing NIB!!!

2 FRONT WHEEL BEARING HUB 4 WHEEL ABS COARSE THREAD NEW

15851 New-No Box, Timken 33462D Double Cone Assembly

One-day shipping available

TIMKEN TORRINGTON BSBU40Q123H SUPER PRECISION BEARING

FAFNIR / TIMKEN PRECISION BEARINGS - 2MM9122WI-CR-DUM

2MM216WIDUL Timken Spindle Bearing

Jims Timken® Case Bearing Tool For Harley Twin Cam

New NU234E Bearing STEYR AUSTRIA 170x310x52mm Ect Timken SKF

39451 New-No Box, Timken 855 Bearing, 3-1/2" Bore, 24mm Wide

One-day shipping available

2821 3 TIMKEN New Bearings

1984W90042 TIMKEN New Bearings

755W90017 TIMKEN New Bearings

L305611 TIMKEN New Bearings

29622BW TIMKEN New Bearings

387W3 TIMKEN New Bearings

3381SW TIMKEN New Bearings

26831 TIMKEN New Bearings

17581 90015 TIMKEN New Bearings

A2047A90024 TIMKEN New Bearings

17117TD TIMKEN New Bearings

13181 90012 TIMKEN New Bearings

21212B3 TIMKEN New Bearings

M38511 TIMKEN New Bearings

34492 TIMKEN New Bearings

454AB TIMKEN New Bearings

L713012DC TIMKEN New Bearings

L327210B TIMKEN New Bearings

534 TIMKEN New Bearings

364XD TIMKEN New Bearings

438W3 TIMKEN New Bearings

53387B3 TIMKEN New Bearings

395X3 TIMKEN New Bear