The Fuji FRN0023G2S-4GU is a FRENIC-Eco series variable frequency drive rated for 15 hp output at 23 A, fed from a 380-480 VAC three-phase line. Input voltage range is 380-480 VAC +10% / -15%, 50/60 Hz; output goes 0-460 VAC, 0.1-120 Hz. Enclosure is NEMA 1 with an open style — plan for panel installation, not washdown. Dynamic braking is built in; no brake chopper included, so external resistor needed for high-inertia stops. Protection covers drive thermal overload, motor thermal overload, overvoltage, undervoltage, phase failure, phase-to-phase and phase-to-ground short circuit, and over-braking. That list covers the common failure modes in HVAC and general fan/pump duty — the stated application is HV AC, and torque curve is variable torque with 50% starting torque at 1 Hz.
I/O and control
Control is via keypad or remote contacts. The drive accepts analog and digital inputs — seven digital, three analog — and gives back five digital plus two analog outputs. Display is LCD/LED showing motor speed with percent, alarm code, menu, function code, plus output frequency, current, and voltage. Start/stop is programmable; control method is variable frequency via the keypad or a remote contact signal.