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SINAMICS G120: Connecting external DC 24V power supply
文档编号：109474285|
文档类型：常问问题|
发布时间：2023年12月27日
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这篇FAQ介绍了G120 外供24V电源，因外形尺寸不同而接线方式也不完全一样。
Sometimes an external DC 24V power supply is needed to keep the control unit powered up when the mains supply of the SINAMICS G120 inverter is switched off. The way to connect external DC 24V varies depending on the frame size of power modules.
How to connect the external DC 24V power supply to SINAMICS G120?
The way to connect external DC 24V varies depending on the frame size of power modules.
1. If the power module is in FSA ~ FSF, the external DC 24V power supply should be connected to T31 and T32 on CU.
2. If the power module is in FSGX, the external DC 24V power supply should be connected to T1 and T2 on X9 terminal block. Avoid connecting the external DC 24V power supply to T31 and T32 on the CU as this may cause nuisance tripping on these Power Modules.
For further Information please see: SINAMICS G120 Power Module PM240; Entry ID: 109738501
3. Information for MICROMASTER please find in FAQ Entry-ID: 8822493
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