The Siemens 6SL3520-1XB41-1AF0 is the PROFINET/EtherNet/IP communication variant in the 1XB4x sub-series of the SINAMICS G115D wall-mounted distributed drive family, rated at 1.1 kW in the compact FSA frame (380 × 156 × 129 mm). With 3.1 A rated output (High Overload), 380–480 V 3-phase supply, and integrated PROFIsafe SIL 2 safety, it brings networked drive functionality to light conveyor sections — small belt turns, diverters, singulation gates — with the B-type connector.

Why PROFINET at 1.1 kW?

Integrating every conveyor section into the same PROFINET network — regardless of power — creates a unified engineering and diagnostic environment. A 1.1 kW diverter appears in TIA Portal alongside the 4 kW main conveyor with identical parameter structure and diagnostic buffer. PROFIsafe safety signals travel on the same bus cable. The marginal cost of the PROFINET variant at 1.1 kW is the smallest in the G115D range. For facilities standardizing on the B-connector ecosystem, the 1XB41 provides a path from 1.1 kW FSA up to 4 kW FSB without changing connector type.

What motor types are supported?

The drive delivers 3.1 A rated output current with 200% overload — 6.2 A for 3 seconds. Supports IE3 asynchronous motors, IE4 synchronous reluctance motors, and SIMOGEAR geared motor combinations up to 1.1 kW. Control modes: V/f (0–550 Hz), V/f with FCC, sensorless vector control (0–240 Hz). Pulse frequency: 4–16 kHz. Integrated 180 V DC brake control. The integrated 2-port PROFINET switch enables daisy-chain line topology.

Frequently Asked Questions

How does the 1XB41-1AF0 compare to the 1XB01-1AF0?

Both are 1.1 kW FSA PROFINET variants with B-connector. The 1XB01-1AF0 belongs to the 1XB0x sub-series; the 1XB41-1AF0 belongs to the 1XB4x sub-series. Electrically and mechanically identical — same frame, same current, same PROFINET stack, same PROFIsafe. The sub-series distinction is commercial catalog organization, not hardware. Choose whichever is available through your procurement channel.

Can the 1XB41 be mixed with 1XB01 drives on the same line?

Yes. Both use the B-connector and the same PROFINET stack. They are electrically, mechanically, and protocol-compatible. Pre-assembled B-connector cable sets work with both.

Is an external braking resistor required?

The integrated 180 V DC brake chopper handles an electromechanical motor brake directly. At 1.1 kW, external braking resistors (minimum 200 Ω for FSA) are rarely needed for typical conveyor duty.