DeltaVFD022E21AVFD-E Sensorless Vector VFD, 2.2 kW / 3 HP, Single-Phase 200-240 V In, Three-Phase 0-240 V 11 A Out, Built-In PLC

Product Description

What this part is

A Delta VFD-E series compact variable frequency drive — an AC inverter that takes a single-phase 200–240 V supply and produces a three-phase 0–240 V variable-frequency output for a 2.2 kW (3 HP) induction motor. This is the classic single-phase-in, three-phase-out arrangement that lets a three-phase motor run from a domestic or light-industrial single-phase feed. The VFD-E is unusual in its size class for carrying a genuine built-in PLC: it will store and execute a small ladder-logic program, so simple machines can run without a separate controller.

Correcting the source data

Earlier copy on this listing described the unit as a three-phase inverter. The input is single-phase — that is what the “21” in the model code means. The output is three-phase. Wire L1/L2 (or L/N) only; there is no third input phase terminal on this frame. If you were planning to feed it from three phases, that is fine electrically only on the derated basis Delta publishes for it, but the drive is specified and rated as a single-phase-input unit.

Decoding the order code

VFD — Delta variable frequency drive.022 — 2.2 kW motor rating (equivalently 3 HP). The same field reads 007 for 0.75 kW, 015 for 1.5 kW, 037 for 3.7 kW.E — VFD-E series: compact, IP20, sensorless vector, built-in PLC, modular extension-card slot.2 — 230 V voltage class (a 4 here would be the 460 V class).1 — single-phase input. A 3 in this position is the three-phase-input build, so VFD022E21A and VFD022E23A are different drives.A — standard build for this frame. Single-phase 230 V class VFD-E units of this size are supplied with an internal braking chopper and C2-class EMC filtering.

Published specifications

Motor rating: 2.2 kW / 3 HPInput: single-phase 200–240 V AC, ±10%, 50/60 Hz; rated input current in the order of 24 A for this frameOutput: three-phase 0–240 V, 11 A rated continuous, approximately 4.2 kVAOutput frequency: 0.1–600 HzOverload: 150% of rated current for 60 sControl method: V/f, V/f with slip compensation, and open-loop sensorless vector. No encoder feedback and no closed-loop flux vector on this platform.Carrier frequency: adjustable, typically 1–15 kHz (derate at the high end)Built-in functions: ladder-logic PLC (500 steps class), PID, 16 preset speeds, skip frequencies, DC injection braking, automatic energy saving, automatic voltage regulationComms: RS-485 Modbus RTU/ASCII as standard on the control terminal block. Optional extension cards add relay outputs, extra analogue/digital I/O, DeviceNet, Profibus, CANopen or an encoder card — no option card is fitted to this unit.Braking: internal braking transistor (chopper) fitted; the braking resistor is external and is not includedEnclosure: IP20 / NEMA 1 style, open chassis for in-panel mountingAmbient: −10 to +50 °C (to +40 °C when units are side-by-side without clearance); up to 90% RH non-condensing; derate above 1,000 mApproximate frame dimensions: 174 mm high x 100 mm wide x 136 mm deep (6.85 x 3.94 x 5.35 in)

What these specs mean in practice

Sizing on this drive is set by the 11 A output, not by the nameplate kilowatts. A 2.2 kW 230 V three-phase motor typically draws 8–9 A full load, which leaves useful headroom; an older or high-slip motor drawing closer to 11 A leaves none, and the 150%/60 s overload will be your entire starting margin. Check the motor nameplate FLA against 11 A before you commit.

The single-phase input is the other thing to plan for. Single-phase supply into a 2.2 kW drive means roughly 24 A on the incoming side, so the branch circuit, the isolator and the upstream protection all have to be sized for that — considerably heavier than the three-phase equivalent. Sensorless vector gives good low-speed torque for conveyors, mixers and machine tools but will not hold a load at true zero speed and will not do positioning; if you need shaft position or full torque at standstill, this is the wrong class of drive.

Output is capped at the input voltage, so a 400 V motor cannot be run to full speed from this 230 V class unit.

Quantity and configuration

One drive. The removable operator keypad/digital panel is not fitted or included — see the photographs. Without it the drive cannot be programmed or operated from the front face; you will need a Delta VFD-E keypad (or the RS-485 Modbus port together with Delta’s configuration software and a USB/RS-485 converter) to set parameters and to run in keypad mode. If your machine already commands the drive over terminal-strip I/O or Modbus and the parameters are set, the missing keypad may not matter operationally, but budget for one if you intend to commission from scratch.

What is not included

Operator keypad/digital panel, keypad extension cable or remote-mount bezel, braking resistor, line reactor, output reactor, extension I/O or fieldbus option card, conduit box, RS-485 converter, motor, cables and manual. Parameters are whatever the previous machine left in them, so plan on a factory reset and a fresh motor setup rather than a drop-in swap.

Installation and setup notes

Mount vertically in a ventilated enclosure with clearance above and below for airflow. Do not fit a contactor between the drive output and the motor for run/stop duty. Set the motor rated current, rated voltage and rated frequency parameters first, then run the auto-tune for sensorless vector mode; leaving the drive in default V/f with a mismatched motor is the usual cause of poor low-speed pull. Wait for the bus capacitors to discharge and the charge indicator to extinguish before touching power terminals.

Interchange guidance

The VFD-E series is discontinued and superseded by the Delta MS300 family, whose nearest 230 V single-phase 2.2 kW member is broadly equivalent electrically but differs in dimensions, terminal layout and parameter numbering — it is not a panel-for-panel swap. Within the VFD-E family the closest neighbours are VFD015E21A (1.5 kW) and VFD037E23A (3.7 kW, three-phase input). Do not substitute a VFD022E23A for this unit if your supply is single-phase, or a VFD022E43A, which is a 460 V class drive.