Why combine PROFIsafe with an integrated C2 filter at the 2.2 kW level?

The 2.2 kW AF0 variant packs the full G115D feature set — PROFIsafe safety communication and C2 EMC compliance — into the entry-level FSB frame at a power rating suited for general-purpose conveyor sections. In a multi-zone sortation system, 2.2 kW drives typically power the straight-run accumulation beds and transfer conveyors that make up the majority of the conveyor line length. Equipping these high-count positions with AF0 drives means every drive node on the PROFINET network is independently safety-addressable and C2-compliant, without needing to mix AF0, AB0, and AA0 variants across the installation and manage different safety wiring and EMC strategies per zone. The result is a homogeneous electrical architecture — every drive connects the same way, is commissioned the same way, and is safety-controlled the same way.

How does the fanless FSB thermal design handle 2.2 kW continuous load?

At 2.2 kW, the G115D FSB converter dissipates approximately 96 W of power loss — well within the passive cooling capacity of the finned aluminum heatsink. Natural convection airflow, driven by the temperature gradient between the heatsink surface and ambient air, provides sufficient cooling for continuous operation at rated current (11.8 A) in ambient temperatures up to 40C. The 2.2 kW power point sits comfortably below the 3 kW natural convection ceiling for the FSB frame, giving the drive thermal headroom for occasional overload without approaching heatsink temperature limits. This makes the 2.2 kW FSB a conservative thermal design — the drive can operate at full nameplate rating in the upper end of its specified temperature range without approaching derating thresholds.

What are the practical benefits of PROFIsafe in a conveyor system with many 2.2 kW drives?

Conveyor systems with ten or more drive positions gain the most from PROFIsafe. The alternative — F-DI wiring — requires two conductors per drive from the safety relay or safety PLC, plus terminal blocks, cable segregation from non-safety wiring, and point-to-point validation during commissioning. With PROFIsafe, the safety signal is a telegram on the PROFINET cable already connected for motion control and diagnostics. Commissioning shifts from physical wiring checks to software configuration: each drive's F-address and F-watchdog time are parameterized in the TIA Portal project. When a conveyor layout changes — moving a drive from zone 3 to zone 5, for example — the safety mapping is a software edit, not a rewire. Over the life of a conveyor system that undergoes multiple layout modifications, the labor savings from PROFIsafe alone can justify the AF0 variant cost premium.

Frequently Asked Questions

Can the 2.2 kW AF0 be used alongside AA0 and AB0 drives on the same PROFINET network?

Yes. All G115D variants share the same PROFINET interface hardware and firmware. AF0, AB0, and AA0 drives can coexist on the same network segment. The only difference is that AA0 and AB0 drives do not expose a PROFIsafe F-address — their STO function is controlled via the F-DI terminal. The TIA Portal hardware configuration reflects each drive's capabilities and the network topology is identical regardless of suffix.

Does the C2 filter add insertion loss that affects drive efficiency?

The C2 filter components introduce a passive insertion loss of less than 1% of rated power — approximately 15-20 W at the 2.2 kW level. This is accounted for in the published power loss figure of 96 W. The filter does not affect motor-side efficiency or the drive's ability to deliver rated output current.