Siemens SINAMICS V90 Operating Instructions Manual page 107

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The 24 V power supplies in the connection diagram are as follows:
1)
2)
3)
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2015, A5E36037884
Digital inputs, supporting both PNP and NPN types.
24 V power supply for SINAMICS V90. All the PTO signals must be connected to the
controller with the same 24 V power supply as SINAMICS V90.
Isolated digital input power supply. It can be the controller power supply.
Isolated digital output power supply. It can be the controller power supply.
Connecting
4.3 Control/Status interface
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