The 6SL3520-0XH67-5AB0 delivers 7.5 kW at 17.1 A in the FSC frame — the highest power rating available in the SINAMICS G115D distributed drive family. With AB0 I/O configuration and an integrated brake chopper, this wall-mounted converter is built for the conveyor sections that carry the heaviest mechanical loads: pallet conveyors, high-speed merge units, incline belts moving dense packaged goods, and accumulation zones where multiple loads can stack up on a single driven section. The FSC enclosure measures 425 × 240 × 169 mm with an integrated thermostatically controlled cooling fan — larger than the passively cooled FSA and FSB frames, but still compact enough for direct machine-frame mounting alongside a SIMOGEAR geared motor.

How does the integrated brake chopper affect application scope?

The built-in brake chopper allows connection of an external braking resistor (minimum 40 Ω for the FSC frame) to dissipate regenerative energy during rapid deceleration. This is the feature that makes the 7.5 kW G115D viable for incline conveyors and high-speed indexing applications where the load inertia would otherwise cause an overvoltage trip on deceleration. Without a brake chopper — as on the passively cooled FSA and lower-power FSB models — regenerative energy must be absorbed by the DC-link capacitors or extended ramp-down times. For horizontal conveyors with gentle stop profiles, the brake chopper may not be needed. For an incline belt moving 500 kg of palletized goods that must stop in under a second, it is essential. The AB0 I/O configuration provides the digital I/O arrangement to support the brake control logic.

What overload capability does the 7.5 kW FSC drive provide?

The G115D supports both Low Overload (LO) and High Overload (HO) operating modes. In LO mode — typical for pumps, fans, and lightly loaded conveyors — the 7.5 kW FSC delivers 17.1 A continuously with 110% overload for 60 seconds. In HO mode — required for conveyors that start under heavy load — it delivers 150% overload for 3 seconds at a reduced continuous current. The work.txt current value of 38 A for this model corresponds to the HO peak, not the continuous LO rating. When sizing the drive for a conveyor application, the LO rating of 17.1 A is the correct comparison figure against the motor nameplate current.

Frequently Asked Questions

How does the AB0 suffix differ from AA0 and AF0 on the 7.5 kW model?

The AB0, AA0, and AF0 suffixes designate different I/O interface configurations — the type, count, and arrangement of digital inputs, digital outputs, and communication connectors populated on the unit. The 7.5 kW power rating, 17.1 A output, 380–480 V supply, 0–550 Hz range, FSC frame dimensions, integrated brake chopper, and all safety functions (STO, PROFIsafe) are identical across all three suffixes. Select the suffix that matches the field-wiring requirements of the installation, consulting the G115D operating manual for terminal assignments.

Can the 7.5 kW G115D run a motor larger than 7.5 kW?

No. The 7.5 kW rating is the maximum continuous mechanical output in LO mode. Operating a motor with a higher nameplate power than the drive rating risks overtemperature trips and reduced service life. If the application requires more than 7.5 kW in a distributed wall-mounted form factor, consider the SINAMICS G120D — a related distributed drive series with higher power availability — or evaluate whether the conveyor section can be split into two shorter sections each served by a separate G115D.