3HAB2213-1/2 DSQC313模块
3HAB2213-1/2 DSQC313模块
3HAB2213-1/2 DSQC313模块
模拟量信号连接应注意的问题变频器中的模拟量输入信号,通常指0~10V/5V 的电压信号或0/4~20 mA的电流信号;这些模拟量输入信号可通过接线端子由外部给定,当变频器与P L C 连接时,这些模拟量输入信号也可来自PLC 的模拟量输出信号,如图3 所示。在进行模拟量的连接时应注意:
(1)阻抗匹配。根据变频器的输入阻抗选择P L C 的输出模块,实现两者的阻抗匹配。
(2)电压范围。当变频器和P L C 的电压信号范围不同时(如变频器的输入信号为0~10V,而PLC 的输出电压信号范围为0~5V 时;或PLC 的一侧的输出信号电压范围为0~10V而变频器的输入电压信号范围为0~5V时),需采用串联电阻的方式进行分压,以保证两者在正常电压范围内
工作,避免电压过限可能损坏器件。
(3)采用屏蔽电缆或绞合电缆。对于变频器和P L C 而言,弱电控制信号(电压0~5V/10V、电流0/4~20mA等)易受到外界强信号的干扰,对控制信号采取适当的屏蔽措施。常用的方式就是采用屏蔽电缆进行屏蔽;对于长距离的控制回路宜采用绞合电缆,绞合电缆的绞合间距尽可能小。
(4)主、控电缆分开布线。实际连线时,注意主、控电缆分开布线,且相隔的距离。以保证主电路侧的干扰及噪音影响不到控制电路。
6ES7315-2AG10-0AB0 1
6AV6642-5DC10-1AC0 1
BMEXBP0800 1
BMXDDOI3202K 1
BMXAMI0802 1
ABL8RPS24100 1
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1783-ETAP2F 9 面价7357
6AV2124-0UC02-0AX0
6ES7241-1CH32-0XB0
6ES7513-1AM03-0AB0
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1783-ETAP2F 9 面价7357
IC697PWR711
IC697CPM790
IC697CMM742
IC697BEM731
6DD1607-0CA1 2
富士模块--NC1Y16R-08,数量1
DAIKIN分配阀--M-3 10S-15S-25S,数量1个
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S57-102-MO 1
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7MBR35VKD120-50 3
FP35R12V2T7 3
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TEXAS INSTRUMENTS PLC 505-5103 5055103
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SEW EURODRIVE SF4DT71D4BMGHRASDX3 SF4DT71D4BMGHRAS
SANYO DENKI 65AA030TXR03 65AA030TXR03
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RELIANCE ELECTRIC 29422-V 29422V
RELIANCE ELECTRIC 1KSK06307-WQ 1KSK06307WQ
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RELIANCE ELECTRIC 0-52837 052837
RELIANCE ELECTRIC 0-51893-1 0518931
PERCEPTRON 9110014 9110014
PCME LTD DM-990 DM990
PACIFIC SCIENTIFIC M5HLON-00115-00 M5HLON0011500
ONE AC CORP CX4196-NG CX4196NG
OMRON 3G3RV-A2300-AV1 3G3RVA2300AV1
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NSK 7028A5TDBC7P4 7028A5TDBC7P4
NDC P680163 P680163