IC693PWR330
IC693PWR330
IC693PWR330
6SL3210-1SE27-0UA0 1
EBC/ESP62/14 40RJ 10
A5E01105817 5
6ES7531-7QF00-0AB0/6ES7531-7KF00-0AB0 28
RAIO-01 1
6ES7232-4HB30-0XB0 个 4
6EP4132-0GB00-0AY0,3个
1746-A10 面价10462 2
6ES7132-6BD20-0BA0 20
5069-L320ERS2 2 面价36800-------
XPSATR11530P 5
FI830F 1
TB55713DB1T20 ~14PH 2
FBM224 1套
FBM230 1套
6ES7331-7RD00-0AB0 5 --------
6ES7332-5RD00-0AB0 3-------
JCU-11 1
ACS580-01-018A-4 7.5KW 1
ACS880-01-12A6-3/5.5KW 1
ACS355-03E-08A8-4 4KW 2
ACS880-01-293A-3+P944 2
ACS880-01-169A-3+P944 2
ACS880-01-017A-3+P944 2
6RA2475-6GV62-0 1----------
6ES7315-2AH14-0AB0 1-------
6ES7331-7KF02-0AB0 28个--------
1756-PA75 1 面价14129
ABB紫外光源 746931 CEMS污染物NOX测量模块紫外光源
6ES7288-3AQ04-0AA0 20台
6AV2124-1JC01-0AX0 1-------
TSXCUSB485 1
TSXCRJMD25 1
6SL3040-1NB00-0AA0 1个 -------
6ES7155-6AU01-0CN0 4
6ES7513-1AL02-0AB0 1
1585-C8HB-S600数量4 28678
6RA8013-6DV62-0AA0 1-------
6ES7414-5HM06-0AB0 2-------
A06B-622-H037 1
A06B-6222-H037----------
HD9MS-A069-0040-400000 2个-------
S10TS230230E5 4
590C-2700530100000 2
317-2EK14-0AB0 1
953-8LM20-0AA0 1
EH10-DI-001 2
EH10-AO-001 1
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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960 Altera EPM7064STC44-7 IC
9669 Ft Raychem 55PC1224-24-2/6-9-F940 Cables 0.3/ft
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a 2000 infinion PEB2060N V4.5
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A& D Co. Weighing Indicator AD-4407
A&D WEIGHING HA-202M USPP HA202M
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