The SINAMICS G115D 6SL3520-0XH21-1AF0 is a 1.1 kW wall-mounted distributed drive with AS-Interface communication for decentralized conveyor applications. Housed in an IP65/IP66 FSA enclosure (380 × 216 × 129 mm), it mounts directly on the machine — eliminating the control cabinet and reducing cable runs between the drive and motor.

How Does AS-Interface Benefit Decentralized Conveyor Architectures?

The AS-Interface (AS-i) fieldbus carries both power and data on a single two-wire yellow flat cable — the same infrastructure already powering sensors and actuators across countless packaging and material handling lines. This G115D variant connects as a native AS-i node: speed setpoints, diagnostics, and STO status travel over the existing bus without Ethernet cabling, additional switches, or protocol gateways. For plants standardized on AS-i, decentralized drives become plug-and-play additions to the existing network.

What Applications Suit the 1.1 kW FSA Drive?

With 6.2 A overload output (3.1 A continuous) at 380–480 V, the 1.1 kW FSA drive powers SIMOGEAR 2KJ8 geared motors for light-to-medium conveyor sections — infeed and outfeed belts, merge and divert stations, and packaging line transfers. The 0–550 Hz output with encoderless vector control handles both constant-speed conveying and basic positioning moves. Integrated STO (Safe Torque Off) via F-DI or PROFIsafe eliminates external safety contactors, simplifying the safety architecture.

Frequently Asked Questions

What is the difference between AS-Interface and I/O Control variants?

AS-Interface variants connect to an AS-i bus network for centralized speed control and diagnostics. I/O Control variants use discrete digital/analog signals for basic start/stop and speed reference — no fieldbus required. Choose AS-i if your plant already uses the yellow cable infrastructure; choose I/O Control for standalone operation or simple PLC I/O integration.

Does the 1.1 kW drive support IE4 synchronous reluctance motors?

Yes. All G115D drives support both IE3 asynchronous and IE4 synchronous reluctance motors when paired with compatible SIMOGEAR 2KJ8 geared motor units.