MitsubishiFR-A720-00330-NA7.5 kW / 10 HP 200 V Class AC Variable Frequency Drive, 3-Phase 200-240 V In, 33 A, 0.2-400 Hz, Sensorless Vector

Product Description

What this part is

A Mitsubishi FR-A720-00330-NA — a 7.5 kW / 10 HP, 200 V class AC variable frequency drive from the FR-A700 series, in North America specification. The A700 is Mitsubishi’s high-function general-purpose inverter: it runs standard induction motors under V/f, advanced magnetic flux vector or real sensorless vector control, and can be taken to closed-loop vector and torque control with the optional encoder feedback card.

Decoding the order code

FR — Mitsubishi FREQROL inverter familyA7 — A700 series (high-function general purpose)20 — three-phase 200 V voltage class00330 — rated output current in tenths of an amp: 33.0 ANA — North America specification (60 Hz base, NA terminal and documentation set)

Published specifications

Applicable motor: 7.5 kW / 10 HP at standard duty (11 kW / 15 HP at the lighter-duty rating)Input: three-phase, 200–240 V AC, 50/60 HzOutput: three-phase, 0–input voltage, 33 A rated output currentOutput frequency range: 0.2–400 HzControl methods: V/f, advanced magnetic flux vector, real sensorless vector; closed-loop vector and torque control with the FR-A7AP encoder optionBraking: built-in brake transistor (chopper) — the discharge resistor is externalCommunications: built-in RS-485 and PU connector; CC-Link, PROFIBUS-DP, DeviceNet and other protocols via plug-in option cardsOperation panel: FR-DU07 keypad interface, panel-mountedOrigin: Japan (Mitsubishi nameplate)

What these specs mean in practice

This is a three-phase input drive — it needs a three-phase 200–240 V supply. Do not plan on single-phase feeding without derating and consulting the manual. The rated current, 33 A, is the number to size against, not the horsepower: a motor whose full-load amps exceed 33 A will trip the drive even if its nameplate horsepower looks right. Real sensorless vector control gives high starting torque and tight speed holding without an encoder, which is why the A700 is chosen over a plain V/f drive for hoists, extruders, winders and machine spindles. Full closed-loop vector performance requires the encoder feedback option card, which is a separate part.

Braking: what you still need:
The brake transistor is inside the drive, but the braking resistor is not supplied and is not fitted internally on this frame. Any application with a high-inertia or overhauling load needs an external resistor sized to the duty cycle, or the drive will report an overvoltage fault on deceleration.

Installation and setup notes

A drive off the shelf carries factory-default parameters, so the motor data, acceleration and deceleration ramps and control mode all need setting for your application. Where a machine’s original drive was replaced, restore the parameter set from a backup or the machine documentation rather than assuming defaults. Allow the specified clearance above and below for cooling airflow; derate for ambient temperature and altitude per the A700 manual, and for carrier frequencies above the default.

What is not included

Drive unit only. No braking resistor or brake unit, no input reactor, output reactor or EMC/RFI filter, no encoder feedback (FR-A7AP) or fieldbus option cards, no DU/PU keypad beyond what is fitted, no parameter unit cable, no motor cable, no connector or terminal kits, no enclosure and no printed manual.

Quantity and configuration

Sold as one drive unit.

Interchange guidance

FR-A720-00330-NA and FRA72000330NA are the same drive. Within the A700 range the current code is the whole story: FR-A720-00250-NA and FR-A720-00460-NA are smaller and larger drives and will not carry this motor load. FR-A740 is the 400 V class and is not interchangeable with a 200 V machine. The NA and EC/CH specification variants differ in default settings and terminal marking, so match the suffix where a machine’s documentation calls it out. Later FR-A800 series drives replace this range functionally but differ in dimensions, terminal layout and parameter numbering.