The Siemens 6SL3520-1XA60-3AA0 is the I/O Control variant at the smallest G115D drive — 0.37 kW, 1.3 A rated — in the SINAMICS G115D distributed drive family, carrying the 1XA60 catalog designation. This AA0 variant fills the final communication gap at 1XA60-3: batch 18 found only AF0 at 0.37 kW; AB0 and AA0 are now confirmed, completing the 1XA60 low-power line-up with all three G115D interfaces.

What makes I/O Control the simplest G115D integration path?

The AA0 variant uses hardwired digital inputs (run/stop, direction, fixed speed selection) and an analog input (0–10 V or 4–20 mA speed reference). A fail-safe digital input (F-DI) handles STO at SIL3. There is no fieldbus configuration: no PROFINET device name, no AS-Interface slave address, no GSDML file. The drive responds to standard PLC digital and analog output cards — hardware every control panel already has. At 0.37 kW, where the drive powers a short roller bed or divert wheel in a remote corner of the conveyor system, the elimination of network commissioning steps is a real time-saver — the electrician wires it like a motor starter and the PLC programmer addresses it like any other I/O point.

0.37 kW in 1XA6x: the complete picture

With AA0, AF0, and AB0 all confirmed at 1XA60-3, the 1XA6x sub-series at 0.37 kW is fully characterized — matching the comm-variant coverage of 1XA00-3 (1XA0x) and XH20-3 (0XH). The four parallel FSA catalog paths — 1XA0x, 1XA2x, 1XA6x, and XE4x — all offer the full AA0/AF0/AB0 choice at their respective 0.37 kW entries. The proliferation of catalog codes is purely commercial: an engineer selects the PN the Siemens distributor stocks.