The Danfoss Frequency Converter is a Danfoss variable-frequency drive (VFD) used to control the speed of the wiper drive motor on VTA wiped-film distillation systems. Adjusting the output frequency enables fine-tuning of wiper rotation speed for different feed materials and distillation conditions, optimizing film thickness and residence time on the evaporator surface. An OEM-specified VFD for VTA distillation equipment; replace with identical model and parameters to maintain compatibility with VTA control system.