LE4-108-XR1

LE4-108-XR1

LE4-108-XR1

LE4-108-XR1

 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。

6GK5204-2BC10-2AA3   4

6GK5204-2BB10-2AA3   4

3RW4047-1TB04   1

3RA6120-1CB32   2

6GK5005-0BA00-1AB2   2

164PC01DW45   2

3RF2320-1AA02   2

1771-ID01         面价:16008    20

PSTX250-600-70    1

6FX2001-5HE25     1

7MF1567-3CG00-1AA1  2台

7MF1567-3DD00-1PA1 4台

1756-CNBR  面价32092   2个

TM221CE40T  数量10

6AV6643-0CD01-1AX1   1个

ACS880-01-072A-3十D150             1

2711P-T10C22D9P  面价35030

2711P-T10C22D9P-B  面价35030 

2711P-T10C22A9P-B  面价37290

2.西门子软启动：3RW40-766BB45  250KW      1

3RW4076-6BB45

3.西门子变频器：6SL3224-0BE23-0UA0       1

4.西门子电源：6EP1935-6MF01    2个

7.西门子模块：6ES7314-1AG13-0AA0    1

314-1AG13-0AB0

8.西门子模块：6ES7322-1HF01-0AA0    1块

HDS180C-2540BMKBS

CBLC2001835P

MFE180-04AN-046A-4+L518+N8020

CBLC20013F6XF

AC80

1769-IF8   5   面价8904

2711P-T10C22D9P   5  面价35030

22A-D8P7N104   1    7548.4

6ED1-052-1MD00-0BA6   4个

6ED1-052-2MD00-0BA6    2个

6SL3352-1AE33-8AA1     1

MS497-75    1

1756-OB8     2   面价  5785

C98043-A7010-L2-5    1

6GK1901-1BB12-2AA0  20个

7KM9900-0XA00-0AA0  3个

1756-IB16I  4个  面价6870.4

1756-OB32   4个  面价8283

1756-IF16   4个  面价18984

1756-OF8   4个   面价24634

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