Siemens SINAMICS G120P CU230P-2 Compact Operating Instructions page 13

→ if you also wish to use the power supply at terminals 31, 32 for the digital inputs, then you
must connect "DI COM" and "GND IN" with one another at the terminals.
You may use the internal 10 V power supply or an external power supply for the analog
inputs.
→ When you use the internal 10 V power supply, you must connect AI 0 or AI 1 with "GND".
Additional options for wiring the digital inputs
Connecting P-switching contacts with an external
Connecting M-switching contacts with an external
CU230P-2 Control Units
Compact Operating Instructions, 01/2017, A5E38815802B AA
power supply
power supply
3.3 Terminal strips
You must remove the jumper between
terminals 28 and 69 if it is necessary to
have electrical isolation between the
external power supply and the internal
inverter power supply.
Remove the jumper between terminals
28 and 69.
Installing
13