At 0.55 kW the drive is often the cheapest component of a machine axis, so the AA0 G115D keeps it simple: PROFINET for control, hardwired STO for safety, and no PROFIsafe engineering in the PLC.

What does the AA0 variant skip?

Only the PROFIsafe F-address. STO still works, triggered by the fail-safe digital input, so a standard safety relay can stop the drive. For plants standardizing on network safety, the AF0 sibling carries PROFIsafe; this unit suits conventional safety architectures.

Is a 0.55 kW drive still a full distributed drive?

Yes: 1.7 A rated output at 380-480 V, 200% overload for 3 s, IP65/IP66, natural convection, integrated C2 filter, and PROFINET connectivity in the compact FSA frame — a complete drive for small fans, pumps and conveyor sections.