The FC 111 Flow Drive series covers a broad range of industrial and HVAC applications, offering models rated from 4 kW (about 5 HP) up to 132 kW (around 200 HP).
Within this series, a key hardware update was introduced in production week 33 of 2017—drives shipped from that point onward, with software version 4.0x or later, are equipped with variable-speed heat-sink cooling fans. This change reduces unnecessary fan operation, lowering energy consumption and helping to maintain stable operating temperatures. The series is typically deployed in HVAC setups as well as pump and fan systems. It enables smoother control of flow compared to conventional starters, which can improve both energy efficiency and operational stability. In installations where precise speed control is important, the drives’ performance parameters are tuned for steady output without excessive mechanical stress. Technical specifications outlined in the official documentation cover a variety of installation and operational considerations. Enclosure designs from H1 to H14 are supported, with guidance on ventilation, grounding, and EMC-compliant wiring. The series incorporates an RS-485 interface supporting Modbus RTU communication, allowing integration into larger control networks. Configuration for Modbus includes parameters for node addressing, baud rates, and termination, with a maximum of 32 nodes supported on a single network segment.
