The Siemens 6SL3520-1XB00-5AF0 is the 0.55 kW PROFINET variant of the SINAMICS G115D wall-mounted distributed drive family — the smallest power rating in the FSA frame range. With 1.7 A rated output (High Overload) and a 380–480 V 3-phase supply, it is designed for the lightest conveyor sections: small roller beds, belt turns, diverters, and singulation modules in intralogistics and packaging lines.

Why put PROFINET on a 0.55 kW drive?

Even at the lowest power level, PROFINET integration delivers value: the drive appears as a configured device in the TIA Portal project alongside larger drives, with the same engineering workflow, diagnostic visibility, and conveyor function blocks. Cyclic speed and status data arrive at the PLC without extra I/O modules. PROFIsafe SIL 2 safety travels on the same bus cable — important in lines where every conveyor section, regardless of size, must participate in the safety architecture. And the hardware is identical in software tooling to the 1.1 kW variant — one engineering framework, one spare-parts philosophy, one set of function blocks, scaled across the entire power range.

What motor types are supported?

The drive supports IE3 three-phase asynchronous motors, IE4 synchronous reluctance motors, and SIMOGEAR geared motor combinations up to 0.55 kW shaft power. Control modes include V/f, V/f with FCC, and sensorless vector control. Output frequency spans 0–550 Hz in V/f mode and 0–240 Hz in vector mode. Overload capability is 200% (3.4 A) for 3 seconds — adequate for small-conveyor starting torque. The integrated 180 V DC brake control manages an electromechanical motor brake directly.

Frequently Asked Questions

Is the 0.55 kW variant mechanically different from higher powers?

No. All G115D FSA models — 0.55 kW, 0.75 kW, and 1.1 kW — share the identical enclosure: 380 × 156 × 129 mm, IP66 / UL Type 4X, natural convection cooling. The only difference is the output current rating determined by the internal power electronics. This means you can standardize on one mechanical mounting footprint across light, medium, and standard-duty conveyor sections.

When is 0.55 kW insufficient?

If your conveyor section requires more than approximately 0.75 hp mechanical at the motor shaft, or if the starting torque exceeds 3.4 A for more than 3 seconds, move to the 0.75 kW (2.2 A) or 1.1 kW (3.1 A) variant. For accumulation conveyors with frequent start-stop cycles, consider the 0.75 kW variant even if the steady-state load is below 0.55 kW — the extra current headroom reduces thermal stress on the drive during repeated acceleration.