The 6SL3520-1XK00-5AA0 completes the 0.55 kW 1XK tier with the hardwired I/O interface: 4DI + 1AI, 1.7 A rated output, 1/3-phase wide-voltage input, FSA frame. This is the baseline control variant at the lowest power level where all three interface options (AA0/AB0/AF0) are available — the straightforward choice for a single roller conveyor or auxiliary station where the PLC already handles all logic and the drive simply executes speed commands from a 0-10 V analog signal.