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FD2090
- 更新时间:2025-02-20
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小青 女士(经理)
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FD2090
FD2090
FD2090
3、 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。
PDP22-FBP 15
HC800 1
8cAI04 (含底座) 2
MDI1FRD34C7-EQ-N 1
MDI4MRQ23B7-EQ 1
6FX8002-1AA01-1AC0 2
功率模块ACS580MV-PEBB-R3ABB-------
GT2510-VTBA-----
测量板ACS580MV-CVMI2-UF-C911-B108ABB
5069-L340ER 面价73417
5069-ECR 面价 225
2711P-T15C22D9P 面价54032----
6FC5610-0BA10-0AA0 1 -------
AM2048S/R 1
6FC5303-0DM13-1AA1 1-------
6FC5312-0DA01-0AA0 1--------
6FC5303-0AF30-1AA0 1---------
6FC5370-0AA00-2AA1 1-------
6SL3130-7TE25-5AA3 1-----
6FC5611-0CA01-0AA1 1-------
6FC5203-0AF04-0AA0 1--------
1606-XLE120E 面价1717
ESM13B-102-202-T2N0A00 1个
MFE190-04UP-06A0-2+N8020 1个 ABB
6ES7656-6CP33-1GF0 3
6ES7656-6CN33-1GF0 7
6ES7656-6CL33-1GF0 4
6ES7653-2CX01-0XE0 14
6GK7443-1GX30-0XE0 29---------
6AV7261-0HS20-3BA2 15
6GK1704-0HB16-0AA0 17
6DL1131-6BL00-0PH1 70
6DL1132-6BL00-0PH1 20
6ED1052-1FB08-0BA1 16
6ED1055-1FB10-0BA2 16
6ES7214-1HG40-0XB0 1
9LA1110-6SV00-1HC6 2
9LA1110-6SP10-7KA0 2
9LA1110-6SV00-1BA0 2
9LA1110-6SV00-1AC5 2
9LA1110-6PH20-0DB4 2
9LA1110-6PH20-2SV5 1
6ES7652-7CX68-2YB0 1
9LA1110-6SV05-1GC2 2
6ES7658-5BX68-2YB5 1
9LA1110-6SV05-1HB7 4
9LA1110-6SV05-1AB7 2
9LA1110-6SV05-0AA6 2
6ES7718-1CB00-1BB2 2
6ES7656-6CR33-1GF0 1
CDBR-4030D 2
RXHG6000W20RJ 2
6DR4004-8J 5
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Eaton Enclosed 3 pole 600 volt 70 amp indoor circuit breaker Electrical