Drive for pump duty
The Fuji FRN025F1S-2DY is a FRENIC-ECO Pump (F1-DY) series variable frequency drive, sized for a 025HP, 3-phase 230V motor. This is a pump-specific variant, meaning the control algorithms and software are pre-configured for centrifugal pump loads — think pressure control, flow matching, and soft-start profiles that keep the machine running without water hammer or cavitation in the discharge line.
The 025HP rating at 3-phase 230V sets the motor size this drive handles — roughly 18.5 kW output. The pump-specific firmware handles the load curve of a centrifugal pump, which is a quadratic torque characteristic, not constant torque like a conveyor. That means the drive's V/f pattern and overload capacity are tuned for pump duty: it will not trip on the low starting torque a pump demands, and it will ride through the occasional clog or deadhead without nuisance faulting. For a mill's wash-water pump or a fan in the dryer section, this is the right variant.