Fuji FRENIC-ECO Pump (F1-DY) series, FRN400F1S-4DY, 3-phase 460V, 400 HP core drive.
The FRN400F1S-4DY is a Fuji FRENIC-ECO Pump (F1-DY) core drive rated for 400 HP on 3-phase 460 V supply. This is a dedicated pump/fan drive — the F1-DY firmware includes pre-configured pump curves, sleep/wake, and flow compensation that a general-purpose VFD would need manual programming to match. For a 400 HP 460 V induction motor driving a centrifugal pump or fan, this is the factory-matched controller.
It is a 400 HP core drive for 3-phase 460 V input, part of the Fuji FRENIC-ECO Pump (F1-DY) family. The F1-DY designation means the drive includes pump-specific control logic out of the box.
Within the FRENIC-ECO Pump F1-DY series, the closest peer would be the next size up or down in horsepower rating — the frame size and panel footprint scale with the current rating. There is no pin-compatible drop-in at a different HP; the power stage and bus capacitors change with the output rating.
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