The 6SL3520-1XH24-0AF0 is a 4 kW SINAMICS G115D wall-mounted distributed frequency converter in FSB frame size, equipped with PROFINET communication and an integrated cooling fan. As the highest-power FSB variant in the G115D range, it marks the threshold where active cooling becomes necessary — the 2.2 kW and 3 kW FSB models rely on natural convection alone, while this 4 kW unit draws approximately 510 mA at 24 V DC to drive its internal fan.

What does PROFINET bring to this drive class?

PROFINET with the PROFIdrive profile enables cyclic data exchange between the drive and a SIMATIC controller over standard industrial Ethernet. This means velocity setpoints, actual speed, torque, and diagnostic data all travel over a single cable — no separate analog signal wiring. Full TIA Portal integration allows parameter assignment, commissioning, and firmware updates from the engineering framework without touching the drive's onboard keypad.

Where does the FSB 4 kW variant fit in a conveyor system?

At 4 kW with 20.4 A output and an overload capacity of 150% for 57 seconds, this drive handles mid-range horizontal conveyor sections, roller tables, and belt conveyors in automotive, logistics, and food-and-beverage lines. The IP65/IP66 enclosure means it mounts directly on the conveyor frame near the motor — no control cabinet needed — which reduces cable runs and simplifies installation in distributed automation topologies.