模块电缆\WRMS33205-A

模块电缆\WRMS33205-A

模块电缆\WRMS33205-A

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。

JWAK-35S5D15S12NI（输入AC165-265V，输出5V、+_15V) 个 1

6SE7090-0XX85-1DA0            1----------------

6SE7090-0XX84-1AB0             1----------------

SD832      10-------------------------------

SS832            4------------------

SD833       3------------------

6EP1961-3BA41     1

综合保护测控单元 F35N03HUH8LH6AM6EW7C  (1/5A;DC220V;RJ45;IEC61850)   2个

IC200ALG260D    数量：6块

ACS880-01-24A3-2    1

ACS880-01-10A6-2    1

ACS800-01-0006-3+P901    1

TCP1561Hi     1

ATV610H40N4    1

FZ1000R16KF4    1

RH40G-4DK.2F.1R    1

ATV71HU40N4    1-------------------

5094-AEN2TR数量10   10580-------------------

6SN1111-0AA00-1FA0数量1-----------------

BMEH584040C--------------------

BMENOC0301C--------------

FX3U-32MR/ES数量2

A16B-3300-0035/01A       1

PSD-30/0-400bar/P#:13188977/S#:11046JCX    10

PSD-30/0-35bar/P#:13186206/S#:001261BXA2    10

HDA3845-A-400-000    10

HDA3840-A-350-Y24(6m电缆)    20

PT100/TFP104-000 904696/Seriennr:137D052151/带插头    10

ETS386-3-150-Y00-30-150℃/20-32VDC/1.2A/ART-N2:920651/SERIENNR:137D02744/带插头    10

PT100/TFP104-000 904696/Seriennr:137D052151    10

BTL5-T110-M0250-B-S103    1

BTL5-T110-M0400-B-S103    1

UB2000-F42-I-V15    5

ME320L-4015-IFE      1

ARND-4044T        1

ARND-4186S        1

GS2107-WTBD       1

GPIF-4037B       1

IM-M739/5-40PC       1

型号规格：OMS200 151F0504 类型:液压马达,排量:OMS200 数量1

DFQRGQG40L-I 数量6

SXE9575-Z71-81K 数量10

CP96SB63-130C,替代CP95SB63-130 数量12

MNIH-2-1-MS 数量6

JMN1H-5/2-D-3-C 数量10

VIIPC PCE-6010    数量：2

KL1104   8   

KL2424   9

KL9100   3

KL4004   3

9000-41084-0401000    数量：2

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