Connecting
6.9 Assignment of terminals and connectors
SINAMICS DCM DC Converter
182 Operating Instructions, 12/2018, A5E34763375A
Table 6- 38 Terminal X179
1 Supply (output) 4.4 to 5.4 V DC short-circuit proof, maximum load 300 mA
Internal supply related to internal ground terminal
Send cable, RS232 standard (V.24)
4 RXD1 Receive cable, RS232 standard (V.24)
Send cable, RS232 standard (V.24)
Receive cable, RS232 standard (V.24)
"Control Unit (CUD)" module
Note
Only one of the two interfaces
– RS485 (X178-3, 4) or RS232 (X179-3, 4) – may be used.
Table 6- 39 PROFIBUS connector assignment
RS485 receive/transmit data P (B)
Positive supply voltage (5 V +/-10%)
RS485 receive/transmit data N (A)
9 - Not assigned
"Control Unit (CUD)" module