The Siemens 6SL3520-1XB00-3AF0 is the full-featured AF0 variant of the SINAMICS G115D distributed drive at the 0.37 kW entry power level, delivering 1.3 A output for 380–480 V 3-phase supply. It combines PROFINET/EtherNet/IP communication, a local remote operator panel, and daisy-chain power and communication connectors — the most complete G115D configuration for small conveyor drives deployed in sequence.

Why daisy-chain at 0.37 kW?

The 0.37 kW rating typically powers the smallest conveyors — accumulation zones, small belt turns, gate units — where drive density is highest. A 50-metre accumulation conveyor might carry 8–10 drives. Daisy-chain topology eliminates eight individual power drops and an Ethernet switch, making the AF0 variant the natural choice for high-density small-drive installations. Each drive becomes a pass-through node for both 400 V AC power and PROFINET/EtherNet/IP communication, reducing cabinet space and cable costs.

Frequently Asked Questions

What is the smallest motor this 0.37 kW drive can control?

The G115D can control motors below its rated power without issue — the electronic motor overload protection (I²t) is configurable in TIA Portal to match the connected motor's rated current. There is no practical lower limit, though motors below 0.12 kW are uncommon in industrial conveyor applications.

Does this drive support Modbus in addition to PROFINET?

Yes. In addition to PROFINET and EtherNet/IP, the G115D supports Modbus RTU and Modbus TCP — selectable via parameter settings in Startdrive or TIA Portal. This makes the drive compatible with a wide range of automation systems beyond Siemens SIMATIC controllers.