Siemens SINAMICS G120 - Fieldbus Interface Allocation

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