Why choose the AA0 basic variant at 2.2 kW in the FSB frame?

The 2.2 kW AA0 is the lowest-cost entry into the FSB frame size, which brings a larger heatsink, higher current-capable power terminals, and daisy-chain supply connectors rated for FSB-level feeder currents. Compared to the 1.5 kW FSA drive, the FSB frame at 2.2 kW delivers 47% more mechanical power while sharing the same natural convection cooling principle. For conveyor applications that need the next power step beyond the FSA-class drives but do not require C2 EMC filtering or PROFIsafe safety, the 2.2 kW AA0 is the direct upgrade path. It uses the core G115D platform — PROFINET/EtherNet/IP communication, sensorless vector control, integrated brake output — without the cost of features the application does not need.

How does the 2.2 kW FSB thermal margin benefit long-term reliability?

At 2.2 kW, the FSB frame dissipates 96 W through a heatsink designed to handle up to approximately 126 W (the 3 kW power point) via natural convection. This 30 W thermal margin — roughly 24% below the natural convection ceiling — translates to cooler semiconductor junction temperatures at steady state and more headroom for the elevated temperatures that accompany overload events. Over a 10-15 year conveyor system life, cooler operation reduces thermal cycling stress on IGBT wire bonds and solder joints, which are the dominant wear-out mechanisms in drive power electronics. A fanless drive with thermal margin is the reliability-optimal configuration for installations where access for replacement is difficult or where unplanned downtime carries high operational cost.

What is the upgrade path if C2 EMC compliance becomes necessary later?

The G115D platform supports an external C2 line filter that can be retrofitted between the supply and the drive input terminals. The external filter is a passive LC network in a DIN-rail or panel-mount enclosure, typically mounted adjacent to the drive. While the external filter adds footprint and installation labor compared to the factory-integrated AB0 filter, it provides an escalation path if a system originally designed for C3 compliance is later deployed in a C2-required environment. The drive firmware, communication, and safety functions are identical — no re-commissioning is needed when adding an external filter, only a physical installation and functional ground verification.

Frequently Asked Questions

Can this 2.2 kW drive be used with a 230 V single-phase supply?

No. The G115D wall-mounted converter requires a 3-phase 380-480 V AC supply. For single-phase applications, a different drive series or a phase converter would be required. The G115D is designed for industrial three-phase conveyor power distribution.

What is the maximum ambient temperature for continuous 2.2 kW operation without derating?

40C at full rated output current (11.8 A). Above 40C, the output current derates linearly to approximately 80% at 55C. For cold storage and freezer warehouse applications, the drive operates from -30C without supplemental heating — the self-heating from 96 W of power loss is sufficient to prevent internal condensation at startup.