6SE7033-2EG84-1JF0

6SE7033-2EG84-1JF0

6SE7033-2EG84-1JF0

6SE7033-2EG84-1JF0

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。

AL09SB-08F-4Y283   1

FR-E720-0.75K   1

HXRMAS-04ACA21

HXRMAS-08ACA21 各1

SK-RM-GRNDCLMP-75   1

CPM2A-BAT01   4

DRT2-ID32SL   1个

140CPU65160    1

力士乐液压泵 0510525033    1 

1785-L40B    1 

6AV7261-0AA00-8AA0    1个

140CRA31200  12  面价12033

BMXCPS3500  4   面价4766

BMEXBP0400  4

BMENOC0301  4

BMEP585040    2---------------------

TCSEK3MR10    4

BMENOC0301      2

BMENOC0311    2 --------------------

6ES7517-3AP00-0AB0    1

6ES7518-4AP00-0AB0    1

BMXNRP0201  块  3  

BMEH584040  块  2  

BMENOC0301  块  3    

BMXART0814  块  30  

BMXAMI0800  块  30

3SU1900-0AS10-0AA0   5

6SL3244-0BB00-1BA1    1

6ES7138-4DB03-0AB0    2

TM2ALM3LT  1

XPSAK371144P，数量2

20-750-1132C-2R数量3   1758

700-HN128数量16  39

 TK821F数量1

A5E34050454数量3

TM258LD42DT    1

6ES7531-7QD00-0AB0   数量：2------------

6ES7540-1AD00-0AA0   数量：2---------------

6ES7545-5DA00-0AB0   1-------------

66ES7214-1AG40-0XB0   2

6GK7542-5FX00-0XB0   2------------------

542-5FX00-0XE0

6EP1334-1LB00   2

241-1CH30-0XB0   1

3RW4076-6BB45  1台-----------------

6XV1830-0MH10    150米

6SX7010-0FF05  1

6ES7155-6BU00-0CN0     1个

20F11NC030JA0NNNNN     18727    1

20F1ANC205JN0NNNNN    90832      1-------------------

ACS550-01-023A-4  

HPU690/061MB1P    1----------------

6FC5357-0BB35-0AA0    1----------------

RELIANCE ELECTRIC 413330-12BA NSPP 41333012BA

Reliance Electric Resistors M# 69340-AF ~NIB ~Box of 6~

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Reliance electric motor S-2000, 1/4 hp, 208 - 230 Volt 

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NEW RELIANCE 1/6 HP AC ELECTRIC BRAKE MOTOR FRAME FA56 

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Reliance Electric CCC1 CCC 1 S 25018 S25018 PLC Card 0 PLC

RELIANCE ELECTRIC CARDPAK OPERATIONAL AMPLIFIER, 0-49013-1

NEW RELIANCE ELECTRIC 14C-222 INTERFACE KIT 14C222

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RELIANCE ELECTRIC 79060-7B ASSEMBLY SUPPORT & ARM PLATE

Reliance Electric motor, 3ph .5hp 

NEW RELIANCE ELECTRIC 0-52861 DCGA PCB MODULE DRIVER PLC CARD 54795

Reliance Electric VS Drive DC1 Motor Controller DC1-3

RELIANCE ELECTRIC 0-51845-2 PHASE SEQUENCE CARD CIRCUIT BOARD 84543-195A 43396

RELIANCE ELECTRIC 0-54394-6 BASE DRIVER CARD BOARD 58388

RELIANCE ELECTRIC POWER MODULE INTERFACE 57408 57408-C 57408C

RELIANCE ELECTRIC P14H1447T DUTY MASTER A-C MOTOR, 1.5 HP, 1730 RPM, NNB

Reliance Electric 0-49005-5 Cardpak Linear Voltage Time

RELIANCE ELECTRIC COMMON MEMORY MODULE 57C413B 57C-413B 57413-3E 574133E

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RELIANCE ELECTRIC 64670-15R NSFP 6467015R

RELIANCE ELECTRIC 65223-R USPP 65223R

RELIANCE ELECTRIC 65248.00 USPP 6524800

RELIANCE ELECTRIC 122.06.11 NSPP 1220611

RELIANCE ELECTRIC 3141WX NSFP 3141WX

RELIANCE ELECTRIC 0-52862 CURRENT LIMIT INVERTER ~ NEW

RELIANCE ELECTRIC 612232-2RC NSFP 6122322RC

RELIANCE ELECTRIC 612426-96R USPP 61242696R

RELIANCE ELECTRIC 14C-220 NSFP 14C220

RELIANCE ELECTRIC 63481-4X NSFP 634814X

RELIANCE ELECTRIC 76624-R NSPP 76624R

RELIANCE ELECTRIC 76624-W NSPP 76624W

RELIANCE ELECTRIC 14C-223 USPP 14C223

RELIANCE ELECTRIC 3CB2030 USPP 3CB2030

RELIANCE ELECTRIC 36HQ100-2-11/16 USPP 36HQ10021116

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RELIANCE ELECTRIC 0-51486-53 USPP 05148653

RELIANCE ELECTRIC 3418-2WY NSFP 34182WY

RELIANCE ELECTRIC 401558-B NSPP 401558B

RELIANCE ELECTRIC K-267 NSFP K267

RELIANCE ELECTRIC 1/3HP AC MOTOR #P48H2301P 230/460VAC 60HZ. 1725RPM

RELIANCE ELECTRIC 60-21-145 NSPP 6021145

1 NIB RELIANCE ELECTRIC 0-51378-39 05137839 1400 GATE COUPLING CARD 

RELIANCE ELECTRIC 612404-7R USPP 6124047R

RELIANCE ELECTRIC 602-051-9A NSPP 6020519A

RELIANCE ELECTRIC D6720-020 NSFP D6720020

RELIANCE ELECTRIC 63871-R NSFP 63871R