The 6SL3520-0XM00-5AF0 is the 0.55 kW PROFIsafe-equipped variant of the SINAMICS G115D distributed drive, sharing the same fanless FSA frame and C2 EMC line filter as the 0.75 kW model. It targets shorter conveyor segments and lighter material-handling loads where 0.55 kW is the correctly sized power node — delivering functional safety over PROFINET without the overhead of an oversized drive.

When should I choose the 0.55 kW FSA model over the 0.37 kW or 0.75 kW options?

The G115D FSA frame spans 0.37 kW, 0.55 kW, and 0.75 kW — all sharing identical mechanical dimensions (380 × 156 × 129 mm) and the same IP65/IP66 enclosure. The choice is purely a motor-sizing decision: match the drive power to your geared motor's rated power. The 0.55 kW variant drives motors up to 0.55 kW and delivers 1.7 A rated output current with 200% overload capability for 3 seconds. Over-sizing to a 0.75 kW model provides no mechanical or environmental advantage — it only adds cost and idle power consumption.

How does PROFIsafe simplify safety integration compared to hardwired safety relays?

With the AF0 suffix, the STO (Safe Torque Off) safety command travels over the same PROFINET cable that carries your motion control data — certified to SIL 2 (IEC 61508) and PL d Cat 3 (EN ISO 13849-1). There is no separate safety relay panel, no dedicated safety wiring, and no additional safety PLC I/O cards. When the PROFIsafe signal is interrupted, the drive torque is safely removed within the certified response time. This is the core value proposition of the AF0 over the AB0 variant.

Frequently Asked Questions

Is the FSA frame fanless across all three power ratings?

Yes. All FSA models (0.37, 0.55, and 0.75 kW) are cooled by natural convection — completely fanless. The FSB and FSC frames include a cooling fan for higher power densities.

What is the maximum motor cable length?

15 meters with shielded cable. For longer runs, consider a centralized VFD in a control cabinet or reposition the G115D closer to the motor.