The 6SL3520-0XN00-3AF0 is the entry-level AS-Interface variant of the SINAMICS G115D distributed drive platform. Rated at 0.37 kW with 2.6 A peak output in the FSA frame, it powers the lightest conveyor sections where decentralized AS-i control and cabinet-free installation add the most value relative to drive cost.

How does the AS-Interface variant differ from PROFINET and I/O Control versions?

The three G115D electronic module variants share identical power hardware — the difference is in communication and I/O architecture. AS-Interface (AF0 suffix) connects the drive over the AS-i two-wire bus, carrying both power and data on a single unshielded cable. This suits conveyor installations with many distributed drives where minimizing wiring is the priority. The PROFINET variant (AB0) adds Ethernet-based real-time communication and PROFIsafe for safety over the network. The I/O Control variant (AA0) uses hardwired terminal I/O with no fieldbus — preferred for standalone operation or non-networked control panels.

What motors can the G115D XN00 drive at 0.37 kW?

The drive is preconfigured for SIMOGEAR 2KJ8 geared motors in frame sizes 71–132, available in IE3 asynchronous or IE4 synchronous reluctance variants. At 0.37 kW, the drive typically pairs with smaller geared motors for light-duty accumulation conveyors, diverter sections, or packaging line infeed/outfeed rollers. The integrated brake control supports 180 V DC electromechanical brakes up to 0.8 A or direct 380–480 V AC brake coils up to 1 A.

What safety functions are integrated?

All G115D variants — including the 0.37 kW entry model — include Safe Torque Off (STO) at SIL 2 (IEC 61508) and PL d Cat 3 (EN ISO 13849-1). On the AS-Interface variant, STO is activated via the fail-safe digital inputs (F-DI) — the drive's two configurable digital inputs can be assigned as F-DI channels. PROFIsafe is only available on the PROFINET variant (AB0), requiring the PROFINET communication layer.

Frequently Asked Questions

Can this drive operate without a control cabinet?

Yes. The G115D is designed for cabinet-free, wall-mounted installation directly on the machine frame. IP65 protection (plug-in connectors) or IP66 (cable gland entry) eliminates the need for a separate enclosure. The FSA frame measures 380 × 216 × 129 mm and uses natural convection cooling — no fan, no maintenance, even at this compact power rating.

Is 0.37 kW sufficient for my conveyor application?

0.37 kW (0.5 hp) is suitable for light-duty conveyor sections — accumulation zones, small roller beds, belt conveyors under 1 m width at moderate speed, or diverter arms. For continuous heavy-load conveying, consider stepping up to the 0.55 kW or 0.75 kW XN00 variants. All share the same FSA frame and mounting dimensions, making upgrades mechanically straightforward.

Does the AS-Interface variant support EtherNet/IP?

No. The AS-Interface variant (AF0) communicates exclusively over the AS-i bus. For EtherNet/IP connectivity, select the PROFINET variant (AB0), which supports both PROFINET and EtherNet/IP as dual-protocol capable.