IC697CHS790

IC697CHS790

IC697CHS790

IC697CHS790

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。

PLC扩展模块    TM2AMM6HT   40

PLC模块TM218LDA24DRN   2

PLC模块TM218LDAE40DRPHN   5

PLC模块TM2AMI4LT   10

模块 TM2DOCKN   10

4WEH16E72/6EG24N9K4   1

3DREP 6 B-20=25EG24N9K4/M   1

100-17-6EG24N9K4   1

200XYG24NK4M-1   1

A20B-2003-0311-YWP-B   1--------------

电机驱动器 LXM32MD18N4 SHCNEIDER   1个

G2010 A 10.4ST     1-----------------

A06B-6202-H030    -----------------

A98L-0031-0028-------------

A06B-6172-H002--------------

A06B-6240-H210-------------

A06B-6240-H211----------------

A02B-0319-C001---------------

A06B-6222#H610-----------------

A06B-6222-H026#610----------------

A20B-2004-0690/06A  --------------

A02B-0338-H101--------------

A02B-0338-H112  --------------

A02B-0338-H140    各1-------------

6ES7591-1AA01-0AA0  1

SYSW160KH     2

SYMIM16            1

AP9512THBLK         1

SYPM10K16H            2

HED80P-2X/100K14   3

2198-D012-ERS3 面价 24408    8

1SVR040001R0400/CC-U/STD  2

伺服器SGDV-2R8A01A002000安川，数量：1个

6ES7231-7PD22-0XB0  3

231-7PD22-0XA0

330180-51-05  2个

6ES7 332-7ND02-0AB0   1

1769-BA   1 面价605.68

1756-BA2   1 面价1231.7

1747-BA   1 面价1728.9

1756-BA1   1 面价1186.5

1756-CP3   1 面价1163.9

1485C-P1-C50   1 面价3152.7

1746-C9   1 面价4056.7

1747-CP3   1 面价1469

1761-CBL-AC00   1 面价468.95

6ES7 901-3DB30-0XA0   1

6ES7 972-0CB20-0XA0   1

6ES7 901-3CB30-0XA0   1

1756-A7   1 面价6260.2

1746-A4   1 面价4734.7

1746-A13   1 面价13673

1746-A10   1 面价9887.5

1756-A10   1 面价7616.2

1746-A7   1 面价6576.6

1756-N2   1 面价350.3

1756-A17   1 面价10757.6

1756-A4   1 面价4090.6

1756-PB72   1 面价11254.8

1769-PA4   1 面价5118.9

1769-PA2   1 面价3130.1

ACS880-01-14A3-7     1

TDM 1.2-100-300-W1-000   1 个

HG-SR202BG1H　1/59　2台

HG-SR202BG1H　1/35　2台        

MR-J4-200A　4台

马达   4602N1384E100         1

马达   4603N2175E100         1

马达   4633N2032E106         1

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panasonic servo mootor MHMD082P1S 2 month warranty

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panasonic servo motor MSM041A1F 2 month warranty

Panasonic MBDDT2210 & MSMD042P1T ←AC Servo Drive & Servo Motor 400W (free ship)

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Panasonic AC Servo driver MSDA043A1A

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Panasonic servo driver MSDA015D1A good in condition for industry use