DSDP140A

DSDP140A

DSDP140A

DSDP140A

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。

7KM3220-0BA01-1DA0 2

6FC5603-0AC13-1AA0     1

6ES7291-8BA20-0XA0   5

6EP1333-3BA10   10

6EP1961-3BA21   10

6AV2123-2GB03-0XA0   1

123-2GB03-0AX0

6AV2124-0JC01-0AX0   1

6ES7212-1AV23-0XB8   1

221-1BF22-0XA8   1

6SL3210-5FB10-1UF2   1

SGM7G-12AFC61+DH120LZ-35-24-110   1

ACS800-01-0120-3+D150+E210+P90   1

C98043-A1600-L1-18   1------------

3BHB009162P0001    1-----------------

1SFL487002R1311   1

68569591   39---------------

68442966   25----------------

61320954    1-----------------

SDCS-PIN-51-CDAT-------------

685826    13

FS450R17KE3/AGDR-71C-----------

CIMR-AB4A0058ABA--------------

68569591----------------

3BHB030310R0001    2---------------

5SHY4045L0006---------------

68685699    1-----------------

64610805    2---------------

SDCS-PIN-51--------------

68564689     1-------------

64680544   5---------------

3НАС14549-2/09А    1-----------

3HAC14549-2-----------------

3AFE10028531VFD ACS800-107-1740-7     6

APOW-01C  PTD-500 AC-1150HP6471194EL   2

ABB 64693808     2

PSR45-600-81

PSR85-600-81   各二

3BSE036634R1 数量5

6ES7193-6AR00-0AA0    5

6ES7215-1AF40-0XB0    1

6GK5208-0HA10-2AA6    2----------------

1769-L33ER  面价30455   1

1769-IR6 面价12331 5

1769-IF8   面价9156 1

2711P-T9W21D8S 面价22307 1

1784-SD1（不用选） 面价975 1

1756-IR12 面价20736 3

1756-IB32   面价6017    1

1756-OB32 面价8528 1

6ES7321-7TH00-0AB0   1-------------------

3RK1301-0AB10-1AA4  2个

DENFOSS INVERTER MODEL-FC-301P5K5T4E 20H2BNC, 5.5 KW ( 400V)/ 7.5 HP (480V)  --- 2 QTY

and CIMR-AD4A0038FMA

model # for yasakawa

6ES7138-6BA00-0BA0     

6ES7222-1BD30-0XB0   

6ES7223-0BD30-0XB0    各1

6SE7032-5FB87-2DA1数量1------------

1769-L30ER数量5   24100

1769-OB32数量5  6845  库存有1个

0810091617数量1

6AV2124-0MC01-0AX0   

数量：1只

HMIGXO3502；DC24V 8.7W

6ES7193-4CB20-0AA0   35（库存有5个）

6ES7193-4CC20-1AA0   11

JAPMC-CP3301-2-E 1

JAPMC-CP3301T1-1-E 1

JAPMC-CP3302-1-E 1

JZSP-BA01 1

JEPMC-OP3301-E 1

JAPMC-BU3303-E 1

JEPMC-OP2300S-E 1

JAPMC-MC2320-E 1

JAPMC-CM2330-E 1

JAPMC-IO2300-E 1

JEPMC-W2061-03-E 3.0 1

SGM7J-04AFC6S 2

SGD7S-2R8A30A 2

JZSP-C7CM03-05-E 2

JZSP-CMP00-05 1

JZSP-CMP10-05 1

HF2010A-UPF 1

JEPMC-W6012-E 1

CPMC-MPE780D 1

JZSP-CM3RR00-00P2-E 1

JZSP-CM3RR00-02-E 1

JZSP-CVS06-02-E 1

MVI56-PDPMV1    1

ABL8BBU24200 数量2

3BHB024711R0020     1

1762-L40BWA   面价8723

功率模块 GDE45725   1

功率模块中的熔断器 K1100028   10

柜顶风机  D5000070   1

用户接口板 5.569.016G   1

CBLS.1EMERSON  数量10个

6AV7853-0AE20-1AA0   1

6SL3210-5BE21-5UV0    1

6SL3210-5BE25-JUV0    2

6SL3210-5BE27-5UV0    1

6SL3210-5BE21-0UV0    1

6SN1121-0BA11-0AA1   1二手

DPS-1200SB A   2

FESTO 电缸 DGE-40-650-ZR-LK-RV 1件询价

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GE FANUC NE-2002-105-DC3 NE 2002 105 DC3 NEW

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GE/Fanuc IC600BF830L

GE FANUC IC600YR560K IC600YR560 RACK 

GE Fanuc BOARD A16B-2200-0854/03B A16B-2200-0854 

GE Fanuc #10 AC Servo Motor, # A06B-0501-B756, Warranty

GE Fanuc SBS TECH 85921040 PCI CIRCUIT BOARD "NEW"

GE FANUC IC693ALG442C *USED*

GE FANUC AOA1-C 44A392606-G02 44B395096-001 CONTROL BOARD MODULE CARD 51606

GE FANUC IC693ALG392 USPP IC693ALG392

GE FANUC IC630MDL376 NSFP IC630MDL376

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