The 6SL3520-0XN00-7AA0 is the I/O Control variant of the SINAMICS G115D distributed drive platform in FSA frame. Rated at 0.75 kW with 4.4 A peak output, it powers mid-range horizontal conveyor sections with hardwired terminal control — no fieldbus, no network configuration.

What makes the I/O Control variant different from PROFINET and AS-Interface?

The three G115D electronic module variants share identical power hardware — the difference is in how the drive receives its commands. The I/O Control variant (AA0 suffix) uses 4 programmable digital inputs and 2 configurable digital I/O channels for direct hardwired control. There is no fieldbus — the drive starts and stops on terminal signals. This suits standalone conveyor sections, replacement of simple contactor-controlled motors, or installations where adding a network node adds complexity without benefit. The PROFINET variant (AB0) adds Ethernet communication and PROFIsafe. The AS-Interface variant (AF0) uses the AS-i two-wire bus for networked distributed control.

What motors can the G115D XN00 drive?

The drive is preconfigured for SIMOGEAR 2KJ8 geared motors in frame sizes 71–132, available in IE3 asynchronous or IE4 synchronous reluctance variants. Motor speed ranges from 300–1500 rpm or 300–3000 rpm depending on the motor selection. The integrated brake control supports 180 V DC electromechanical brakes up to 0.8 A or direct 380–480 V AC brake coils up to 1 A.

What safety functions are available on the I/O Control variant?

Safe Torque Off (STO) is activated via the fail-safe digital inputs (F-DI) — two of the drive's four digital inputs can be configured as F-DI channels. The drive achieves SIL 2 (IEC 61508) and PL d Cat 3 (EN ISO 13849-1). PROFIsafe is not available on this variant — it requires the PROFINET communication layer present only on the AB0 variant.

Frequently Asked Questions

Can this drive operate without a control cabinet?

Yes. The G115D is designed for cabinet-free, wall-mounted installation directly on the machine frame. IP65 protection (plug-in connectors) or IP66 (cable gland entry) eliminates the need for a separate enclosure. The FSA frame measures 380 × 216 × 129 mm and uses natural convection cooling — no fan, no maintenance.

Can the I/O Control variant be upgraded to fieldbus later?

No. The communication interface is determined by the electronic module hardware — the AA0 (I/O Control), AB0 (PROFINET), and AF0 (AS-Interface) variants are distinct products. To add fieldbus capability, the drive unit must be replaced with the corresponding variant.

What does the XN00 frame code indicate?

XN00 designates the FSA frame size covering 0.37–0.75 kW ratings with natural convection cooling. The frame hardware measures 380 × 216 × 129 mm — identical to XN01 (1.1 kW) in physical dimensions. The designation reflects the power class, not a physical difference.