The 6SL3520-0XL04-0AA0 is the standard I/O variant of the 4 kW SINAMICS G115D distributed drive. It occupies the middle tier between the basic (-0AB0) and full-featured (-0AF0) configurations, offering additional on-board digital I/O for localized sensor and actuator wiring while sharing the same 425 × 240 × 169 mm FSB frame, IP65/66 enclosure, Category C2 EMC filter, and integrated PROFINET/EtherNet/IP communication.

What additional I/O does the standard configuration provide over the basic variant?

The standard (-0AA0) variant adds extra digital inputs and outputs compared to the basic (-0AB0) model, allowing a limited number of local sensors — such as proximity switches, photoelectric barriers, or limit switches — to be wired directly to the drive rather than routed back to a remote I/O block. This reduces wiring complexity at the conveyor segment level and can eliminate one remote I/O station per drive in simple conveyor topologies. The power electronics, frame dimensions, overload capability, and safety functions remain identical across all three suffix variants at this power rating.

When does localized sensor integration justify choosing standard over basic?

Choose the standard I/O variant when a small number of conveyor sensors are physically closer to the drive than to the nearest remote I/O block, and wiring them locally simplifies the cable run. Common examples include a motor-mounted encoder, a single upstream and downstream photoelectric barrier for product tracking, or a local E-stop in the drive's immediate vicinity. If the conveyor segment requires more than a handful of local sensors — or if sensors are distributed along a long conveyor — remote I/O blocks remain the better architecture regardless of the drive's on-board I/O tier.

Frequently Asked Questions

Can I mix basic, standard, and full-featured G115D drives on the same PROFINET network?

Yes. All G115D suffix variants share the same PROFINET and EtherNet/IP implementation. A conveyor line can mix basic, standard, and full-featured drives on the same network — each variant chosen according to the local I/O needs of its conveyor segment without any integration penalty.

What is the output frequency range of the G115D?

The SINAMICS G115D outputs 0 to 550 Hz, covering the full speed range required by SIMOGEAR geared motors in horizontal conveyor applications. Sensorless vector control provides stable low-speed torque for smooth acceleration and deceleration of belt loads.