The SINAMICS G115D 6SL3520-1XA20-7AA0 is the 0.75 kW wall-mounted distributed frequency converter in FSA frame with I/O Control — the most compact hardwired drive in the SINAMICS G115D series 1XA20 catalog designation. Designed for short roller beds, diverter gates, and light transfer units, it delivers 2.2 A rated output with 200% overload, driving IE3/IE4 motors via SIMOGEAR 2KJ8 direct mounting. The FSA enclosure (380 × 216 × 129 mm) uses natural convection — silent, zero-maintenance, no fan to clog in dusty environments. I/O Control provides run/stop, direction, speed reference, and F-DI STO via terminal-block wiring to the PLC.

Why I/O Control at 0.75 kW?

At this power level — the lightest conveyor zones — the drive is often installed within meters of the PLC cabinet. Running discrete wires for start/stop and a 0–10 V analog speed reference is simpler and cheaper than configuring any fieldbus node. The AA0 variant eliminates communication protocol setup entirely: wire the terminals, set parameters via SD card, and the drive runs. For machine builders shipping standardized conveyor modules with dedicated control panels, I/O Control is the most predictable interface across all drive sizes.

Frequently Asked Questions

Can I add a fieldbus later?

No — the AA0 variant has no fieldbus hardware. Replace with AF0 or AB0 variant for fieldbus connectivity.

How does 1XA20 relate to 1XA00 for 0.75 kW?

Both identify the same 0.75 kW FSA hardware. 1XA20 and 1XA00 are parallel catalog codes within the 1XA series — functionally interchangeable.