The SINAMICS G115D 6SL3520-1XA20-5AF0 is the 0.55 kW wall-mounted distributed frequency converter in FSA frame with AS-Interface communication — the lowest 3-phase power rating in the SINAMICS G115D series, now in the 1XA20 catalog designation. Extending G115D coverage down from 0.75 kW to 0.55 kW, it serves the lightest conveyor zones — short roller beds under 3 meters, single-diverter gates, and light-duty transfer mechanisms. It delivers 1.7 A rated output current with 200% overload (3.4 A for 3 seconds), driving IE3/IE4 motors via SIMOGEAR 2KJ8 direct mounting. The FSA enclosure (380 × 216 × 129 mm) provides silent natural convection cooling. AS-Interface AF0 connects over the two-wire yellow cable — a two-wire drop-in for brownfield AS-i conveyor plants.

What applications justify a 0.55 kW distributed drive?

0.55 kW covers the lightest motorized conveyor functions: gravity roller bed assist drives, pop-up diverter wheels, short transfer belts, and light-duty skate-wheel sections. In AS-i brownfield plants where the yellow cable already serves sensors and actuators on these light-duty zones, the AF0 variant adds drive control without any additional network infrastructure — the drive appears as a standard AS-i slave on the existing segment. STO is via F-DI from the nearest safety relay, consistent with the plant's existing AS-i safety architecture.

Frequently Asked Questions

Is 0.55 kW sufficient for a conveyor drive?

Yes — for short roller beds (under 3 meters), diverter wheels, and light transfer units. For longer belts or incline sections, step up to 0.75 kW or 1.1 kW FSA.

How does 1XA20 compare to XH20-5 for 0.55 kW?

Both identify the same 0.55 kW FSA hardware — mechanically and electrically identical (1.7 A rated, 380 × 216 × 129 mm, natural convection). 1XA20 is the 1XA series code; XH20 is the XH2x current catalog code. Drives are functionally interchangeable.