IS220PDIAH1A
IS220PDIAH1A
IS220PDIAH1A
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PLC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PLC的输出模块,实现两者的阻抗匹配。
(2)电压范围。当变频器和PLC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PLC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。
A5E00181901 1
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A5E00242932 2
C98043-A7003-L4 1
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6SE7027-2ED84-1HF3 ---------------------
6SE7024-7ED84-1HF3 --------------------
6SE7021-8ED84-1HF3 --------------------
6SE7023-4EC84-1HF3 -----------------
C98043-A1601-L1 ---------------
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C98043-A1600-L1 ------------------
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6SE7027-2ED84-1HF4 -------------
A5E00714562(模块+板子) 1
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6SL3244-0BB13-1FA0
ATV71HC13N4
A5E00145212
FXD63A250L
2711P-RN6 面价7416
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6XV1830-5EH10 西门子 240米
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215AIF-01
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WESTINGHOUSE PC-700A-10-103003 PC700A10103003
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VALMET A4400007D A4400007D
VALCO CINCINNATI 084XX512 084XX512
UBE INDUSTRIES DDVC/HV-J1 DDVCHVJ1
TOSHIBA VT130E3U430K VT130E3U430K
TELEMECANIQUE XGSC5142311 XGSC5142311
TELEMECANIQUE TSX-P107455 TSXP107455
TELEMECANIQUE LC1-F5004 LC1F5004
TECHNOTRANS 420.29.4500 420294500
TB WOODS WFC4040-0CHT WFC40400CHT
SYMAX 8030-CRM-565 8030CRM565
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STI 70016-1189 700161189
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SIMPLEXGRINNELL 562-351 562351
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RELIANCE ELECTRIC 803456-51R 80345651R
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RELIANCE ELECTRIC 5VU41040 5VU41040
RELIANCE ELECTRIC 45C-15C 45C15C
RELIANCE ELECTRIC 40V2060 40V2060
RELIANCE ELECTRIC 3RA2004 3RA2004
RELIANCE ELECTRIC 0-60028-2 0600282
RELIANCE ELECTRIC 0-56303 056303
RELIANCE ELECTRIC 0-52854-2 0528542
RELIANCE ELECTRIC 0-51864-2 0518642
ORMEC GN3-20/2MCI GN3202MCI
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MTS SYSTEMS CO MPM-1904R-1198 MPM1904R1198
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MOTION ENGINEERING INC PROSERIAL-800 PROSERIAL800
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MEASUREX 09437703 09437703
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LEXIUM MHDA1198N00 MHDA1198N00
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JOHNSON CONTROLS NU-NCM300-700 NUNCM300700
ITE SIEMENS WMS12U WMS12U
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ISSC 9010-036 9010036