The Siemens 6SL3520-1XB40-5AB0 is the standard I/O variant at the lowest power rating in the 1XB connector family of the SINAMICS G115D wall-mounted distributed drive platform. At 0.55 kW with 1.7 A rated output (High Overload), 380–480 V 3-phase supply, and the compact FSA frame (380 × 156 × 129 mm), it is the absolute entry point to the G115D 1XB ecosystem — the most affordable way to put a Siemens distributed drive on a conveyor section with a B-connector.

What does Standard I/O mean at the smallest 1XB?

The AB0 variant uses four programmable PNP digital inputs for speed, direction, and enable signals — connected to pushbuttons, relays, or a basic PLC output card. At 0.55 kW, this covers the lightest conveyor sections: mini belt turns, singulation gates, and small diverters in e-commerce and pharmaceutical material handling. The drive delivers the full G115D motor control suite — V/f, V/f with FCC, sensorless vector control — so even the smallest section gets precise speed regulation. Commission via Mini-USB with TIA Portal Startdrive or SD card. Once configured, operation requires only 24 V DC I/O signals.

What motor types are supported?

The drive delivers 1.7 A rated output current with 200% overload — 3.4 A for 3 seconds. Supports IE3 asynchronous motors, IE4 synchronous reluctance motors, and SIMOGEAR geared motor combinations up to 0.55 kW. Control modes: V/f (0–550 Hz), V/f with FCC, sensorless vector control (0–240 Hz). Integrated 180 V DC brake control. FSA frame: natural convection cooling, IP66 / UL Type 4X.

Frequently Asked Questions

How does this compare to the 0XD00-5AB0?

Both are 0.55 kW FSA Standard I/O variants. The 1XB40-5AB0 uses the B-connector; the 0XD00-5AB0 uses the D-connector. Electrically identical — same 1.7 A rated, same AB0 terminal standard, same control performance. Choose based on connector ecosystem: 1XB scales within the B-connector family to 4 kW; 0XD is D-connector FSA only.

Can this drive be upgraded to PROFINET later?

No. The communication interface is hardware-defined at order. If future network integration is possible, select the AF0 variant — it accepts both PROFINET and digital input commands. At 0.55 kW, the cost difference between AB0 and AF0 is minimal.

Is an external braking resistor required?

At 0.55 kW, the integrated 180 V DC brake chopper is more than sufficient for all typical conveyor duty. An external braking resistor is not required.