The 6SL3520-1XH25-5AA0 is a 5.5 kW SINAMICS G115D wall-mounted distributed frequency converter in FSC frame, fitted with hardwired digital and analog I/O and an integrated cooling fan. At 26.4 A output and 425 mm housing width, it moves into the upper power tier of the G115D wall-mounted range, with an overload rating of 150% for 57 seconds to handle conveyor start-up surges.

When does hardwired I/O make more sense than fieldbus?

The AA0 suffix designates the standard hardwired I/O configuration: four digital inputs, plus analog I/O for speed reference and actual-speed feedback. This variant is the right choice when the upstream PLC already uses a centralized I/O architecture with dedicated analog output cards, or when the drive is a drop-in replacement for an existing hardwired installation. No fieldbus configuration, no GSDML file, no network topology planning — wire the run command and 0–10 V speed signal, and the drive runs.

What can the FSC 5.5 kW drive on a conveyor line?

With 5.5 kW and 26.4 A available, this variant powers accumulation conveyors, inclined belt sections, and roller conveyors handling moderate product weights in distribution centers, baggage handling, and automotive sub-assembly lines. The FSC frame includes a higher-capacity integrated braking resistor (88 Ω, 20 W continuous) compared to the FSB frame, giving it more headroom for cyclic braking on declining conveyor sections.