The 6SL3520-1XH25-5AF0 is the PROFINET-equipped variant of the G115D 5.5 kW FSC distributed drive. Sharing the same 5.5 kW power stage and 26.4 A output as the AA0 hardwired variant, the AF0 suffix adds PROFINET with the PROFIdrive profile — the drive appears as a standard IO device on the TIA Portal network, exchanging cyclic process data and acyclic parameter data over a single RJ45 connection.

What does PROFINET change about how this drive is commissioned?

With PROFINET, the drive joins the TIA Portal project as a configured device rather than a standalone unit wired to analog outputs. The engineering framework uploads the device name, sets the IP configuration, and loads all drive parameters in one workflow — no keypad navigation, no separate commissioning tool. After commissioning, the drive streams not just speed and current but also motor temperature, DC-link voltage, and fault codes to the controller, enabling predictive maintenance routines that are impractical with hardwired I/O alone.

5.5 kW in the FSC envelope

The FSC frame delivers 5.5 kW from the same 425 mm housing width as the FSB — the internal layout and cooling capacity are what change. An integrated fan runs continuously, and the braking resistor rating doubles to 20 W continuous (88 Ω) compared to the FSB's 10 W, giving this 5.5 kW unit more thermal margin for cyclic braking on inclined or stop-and-go conveyor sections. Output frequency reaches up to 550 Hz for high-speed spindle applications beyond standard conveyor duty.