The SINAMICS G115D 6SL3520-0XN01-5AF0 is an AS-Interface wall-mounted distributed inverter drive engineered for horizontal conveyor applications. As part of the Siemens decentralized drive platform, it eliminates the need for a control cabinet — mounting directly on the machine to reduce footprint, simplify cabling, and lower cooling requirements. The AS-Interface variant communicates over the yellow AS-i bus cable in Single Slave or Dual Slave mode, drawing power directly from the AS-i network (26.5–31.6 V DC) with auxiliary 24 V DC for extended I/O.

What motor configurations does this drive support?

The G115D pairs with SIMOGEAR 2KJ8 geared motors, available with IE3-class three-phase asynchronous motors or IE4-class synchronous reluctance motors. The wall-mounted converter connects via a Q80 motor connector and accommodates speed ranges from 1:5 up to 1:10, covering 300 to 3,000 min⁻¹ depending on the configured control range. An integrated 180 V DC brake output is provided as standard for motor holding brake control.

How does the AS-Interface variant differ from other G115D communication options?

The G115D platform offers three electronic module variants: AS-Interface (this model), PROFINET/EtherNet/IP, and terminal I/O Control. The AS-Interface variant supports both Single Slave (profile 7.F.E) and Dual Slave (profile 7.A.5 or 7.A.E) operating modes, with automatic addressing via the AS-i master or manual addressing via parameter p2012. It provides 4 digital inputs plus 2 bidirectional DI/DO points, with DI 2 and DI 3 configurable as fail-safe inputs for the integrated STO safety function.

What safety and protection features are included?

The drive integrates Safe Torque Off (STO) via a fail-safe digital input (F-DI), meeting functional safety requirements without external safety relays. The IP65/IP66 enclosure with UL Type 4X rating allows installation in washdown and harsh industrial environments, with an operating temperature range of −30 °C to +40 °C (extendable to +55 °C with derating). A built-in Category C2 EMC filter per EN 61800-3 simplifies compliance.

How does the G115D simplify commissioning and maintenance?

Predefined macros — including Macro 30 for AS-i Single Slave with fixed setpoint — enable rapid setup without specialized drive expertise. An optional SD memory card allows parameter transfer between units for fleet-wide commissioning, while an available web server module supports wireless diagnostics and remote configuration. The modular platform shares common components across wall-mounted and motor-mounted G115D variants, streamlining spare parts management across the installation.