The 6SL3520-0XM01-1AA0 is a 1.1 kW SINAMICS G115D distributed frequency converter, FSA frame, AA0 I/O configuration. The G115D family spans 0.37 kW to 7.5 kW across three frame sizes — FSA, FSB, and FSC — with the 1.1 kW sitting in the upper half of the FSA range. It provides 3.1 A of continuous output current at 400 V, a meaningful step up from the 0.75 kW FSA (2.2 A) without moving to the larger FSB housing.

Where does the 1.1 kW FSA fit in the full G115D lineup?

The G115D distributed drive family is designed around conveyor power requirements. At the low end, 0.37–0.75 kW FSA drives handle light-duty sections: small roller conveyors, diverters, and single-belt transfers in packaging and assembly lines. The 1.1–1.5 kW FSA models cover medium-duty sections: longer accumulation conveyors, merge units, and inclined belts with moderate product weight. Above 1.5 kW, the FSB and FSC frames take over for heavy-duty and high-power conveyor applications up to 7.5 kW. The 1.1 kW model is the logical upgrade path when a 0.75 kW conveyor section proves underpowered — it fits the same 380×216×129 mm mounting space, uses the same M6 bolt pattern, and weighs the same 5.5 kg, so the mechanical retrofit is a like-for-like swap with no drilling or bracket changes.

How do you size a conveyor drive — power versus current?

For distributed conveyor drives, power rating (kW) is the starting point but current rating (A) is the final check. The G115D's overload capability means the drive can deliver 200% rated current (6.2 A for the 1.1 kW model) for 3 seconds to overcome breakaway friction when a loaded conveyor starts. This peak capability often lets a 1.1 kW drive start a conveyor that would appear to need 1.5 kW based on running power alone. The sizing process is: calculate the running power requirement from belt speed, product weight, and conveyor length; verify that the drive's continuous current rating exceeds the motor's nameplate current; then confirm that the drive's 200% peak current covers the breakaway torque. If the continuous running power is below 1.1 kW but the starting current exceeds 6.2 A, step up to the 1.5 kW model for its 8.2 A peak capability.

Frequently Asked Questions

Is the G115D compatible with third-party PLCs or only SIMATIC?

The G115D communicates over standard PROFINET, which is an open industrial Ethernet protocol supported by most major PLC manufacturers. While TIA Portal provides the deepest integration (automatic device discovery, integrated parameterization, diagnostic forwarding), the drive can be controlled by any PROFINET controller that supports the PROFIdrive profile. Third-party PLCs will need a GSDML file (available from Siemens Industry Online Support) to configure the drive in their engineering tool. The control interface — speed setpoint, control word, status word — follows the standard PROFIdrive telegram format.

What is the warranty situation for G115D drives installed outside the EU?

Siemens provides a standard 24-month warranty on SINAMICS drives from the date of shipment, worldwide. Warranty terms are documented in the SINAMICS G115D operating instructions and the Siemens General Terms and Conditions of Sale. Local Siemens sales offices can confirm country-specific warranty extensions or service contracts. Drives manufactured in the UK (GB) carry CE and UKCA marking for the European and British markets respectively.