Fieldbus Interface Allocation - Siemens SINAMICS G120 Operating Instructions Manual

Installing
4.5 Connecting the interfaces for the inverter control
4.5.3

Fieldbus interface allocation

Interfaces at the lower side of the CU230P-2 Control Unit
RX+, receive data +
RX-, receive data -
TX+. Transmit data +
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TX-, transmit data -
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110
Shield, ground connection
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RxD/TxD-P, receive and transmit (B/B')
CNTR-P, control signal
DGND, reference potential for data (C/C')
VP, supply voltage
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RxD/TxD-N, receive and transmit (A/A')
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Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE
0 V, reference potential
P+, RS485P, receive
and transmit
N-, RS485N, receive
and transmit
Cable shield
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Converter with the CU230P-2 Control Units