The Siemens 6SL3520-1XA60-7AF0 is the AS-Interface variant at 0.75 kW in the SINAMICS G115D distributed drive series, carrying the 1XA60 catalog designation. 1XA60 is the lower-power half of the 1XA6x sub-series — newly discovered in this batch — covering 0.37–0.75 kW FSA. Together with 1XA61 (1.1–1.5 kW FSA), the 1XA6x sub-series now spans the complete 0.37–1.5 kW FSA G115D power range.

What is the 1XA6x sub-series and how does it relate to 1XA0x and 1XA2x?

The 1XA6x sub-series follows the same structure as the previously known 1XA parallel sub-series: 1XA60 covers 0.37–0.75 kW (low-power half) and 1XA61 covers 1.1–1.5 kW (high-power half). This mirrors the 1XA0x pair (1XA00 low + 1XA01 high) and the 1XA2x pair (1XA20 low + 1XA21 high). All three sub-series identify the same FSA hardware platform — same enclosure, same power stages, same cooling. The three parallel catalog codes (0x, 2x, 6x) are a commercial procurement choice, not an engineering distinction. An engineer selects the PN their Siemens distributor stocks; the drive that arrives is the same.

AS-Interface at 0.75 kW: smallest drive, simplest network

At 0.75 kW and 2.2 A rated, the 1XA60-7AF0 powers the lightest conveyor zones — belt sections under 3 m, right-angle transfers, and low-speed accumulation rollers. These are the most numerous and most distributed drives on the line. AS-Interface suits them perfectly: the yellow flat cable carries both speed commands and auxiliary power on two wires, and insulation-displacement connectors make tap-off a matter of piercing the cable — no stripping, no terminal blocks, no separate 24 V supply wiring to each drive location.