AO810V2_厦门海通华业科技有限公司

AO810V2

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。

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6SL3352-1AG41-0FA1 2

6FC5247-0AA30-0AA0 1-----------------

6SN1123-1AA00-0BA2 1

6SN1123-1AA00-0CA2 1

6SN1115-0BA11-0AA1 1

6SN1118-0DG23-0AA1 1----------------

6SN1118-0DK23-0AA2 1-------------

6ES7338-4BC01-0AB0 6

6ES7138-4DB03-0AB0 3

6AV6644-0AA01-2AX0 1-----------

6SL3362-0AF01-0AA2 1

6ES7215-1BG40-0XB0 1

6ES7 193-4CF50-0AA0 2

6AU1425-2AD00-0AA0---------------

6SL3120-1TE13-0AD0 1

6SL3120-2TE13-0AD0 2

6AU1400-2PA23-0AA0 1

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6EP1931-2FC21 1

6EP1935-6ME21 1

3SE5132-0BJ01 数量1

212-2BC00-2AA3 1

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mvi56e-mcm 1--------------

20-750-S 1 面价993

20-750-ENETR 1 面价3711

25B-D010N104 1 面价6576

25B-D043N114 1 面价24375

1734-AENT 1 面价4305

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HW0301226-1 2

HW0301227-1 2

6ES7193-1CL10-0XA0 1

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3G3MX2-A4007-Z 2

A06B-6270-H011#H600 1---------------

A06B-6220-H022#H600 2-------------

XB5000-4T-132G 1-

210-1PE12-3UL1 1

210-1PE21-1UL0 2

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P60B13150HCX23 1个

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TSXP572634M 1 面价19348-----------------

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212-1BB20-0XB0 各2

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AIM-VPN/SSL-1 CISCO DES/3DES/AES/SSL VPN ENCRYPTION/COMPRESSION MODULE

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