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EBG UXP/600 SRK 01203LF
EBG UXP/600 SRK 01203LF
EBG UXP/600 SRK 01203LF
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。
29-10-500(10197161) 2
6SL3912-5EP41-2AA0 1
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6SL3912-5AP36-0AA0 1
6SL3912-5AN36-0AA2 1
ABB 1SDA054918R1
ABB Aup-I T4-T5-T6
ABB 1SDA072158R1
ABB 1SDA055061R1
ABB 1SDA066411R1
ABB 1SDA073907R1
ABB 1SDA073913R1
TU830V1 1
3VT8325-1AA03-0AA0 3
HUAD100001R0001 1
SK-R9-FAN11-F6 10 2020
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SK-R9-FAN11-F4 4 1516
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20-750-S 面价1216 5个
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20G11NC085JA0NNNNN 3 面价85022
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6AV6641-0AA11-0AX0 数量1
瑞能变频器电流互感器 NRED-16E 58926451 3
YASKAWA ELECTRIC USASEM-10HS13 USASEM10HS13
YASKAWA ELECTRIC CACR-SR-15SZ1SSY228 CACRSR15SZ1SSY21
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WOODWARD 8406-113 8406113
WESTRONICS INC 4040-2-400-400-400-400-011-010-000 4040240040040040
WESTINGHOUSE 4D33811G02 4D33811G02
WARD LEONARD 5004-3001-11 5004300111
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TELEMECANIQUE TSX-RAM-51216 TSXRAM51216
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SAGINAW AV-486506 AV486506
ROOTS 718-U-RAI 718URAI
REXROTH 1-070-083-221 1070083221
REXROTH 0-608-830-226 0608830226
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RELIANCE ELECTRIC 801429-1SC 8014291SC
RELIANCE ELECTRIC 40V4160 40V4160
RELIANCE ELECTRIC 0-54200-2 0542002
PRINTRONIX T5308 T5308
PPT VISION 661-0326-C30 6610326C30
PPT VISION 661-0306 6610306
OMRON NT31-ST121B-EV2 NT31ST121BEV2
OMRON F350-C41-E F350C41E
OKUMA VACMF22/18.5R-153UR5 VACMF22185R153UR
NVIEW V70 V70