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5069-IB16
5069-IB16
5069-IB16
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。
6ES7322-IBH01-0AA0 1
322-1BH01-0AA0
6AV6643-0CD01-1AX1 1
6SL3126-1TE21-8AA4 1
Profibus接口卡 PDP800 -------
ModuleABB 1
24V电源模块 SPS01 7760690156(ABB) 1
48V电源模块 SPS02 7760690157(ABB) 1
CIMR-HF5S27P5C 1
Ds200TCPDG2Bec 1pc
IS200VTURH2B 1pc
TK8500V007 1pc
TK850
数字输入模块 6ES7526-2BF00-0AB0货期12-18天 7
6RA2828-6DS21-0 1-------
1788-EN2DNR 面价26809 22
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6FC5373-0AA30-0AB0 1--------
6ES7526-2BF00-0AB0数量7
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DR5-TE1U 1
TM3DI16G 1
TM3DI16 1
22B-D2P3N104 2 面价5534
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AMERITHERM 003-0044-1 00300441
ALLEN BRADLEY SA3100-B030-AN-L6R SA3100B030ANL6R
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ADEPT TECH 30332-22350 3033222350
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ACCURAY 085218-001 085218001