Delta VFD055E43A VFD-E Series Variable Frequency Drive 7.5 HP 13 A 380-480V 3 Phase AC Drive IP20 Sensorless Vector

Product Overview

The Delta VFD055E43A is an AC micro drive from the Delta VFD-E series. It is rated 7.5 HP at the constant-torque (CT) rating with a rated output current of 13 A, and accepts a three-phase 380-480 V AC supply. Motor control is open-loop vector (sensorless vector), which gives stable torque and speed regulation without a shaft encoder.

The VFD-E series is built as a low-horsepower, constant-torque micro drive in an IP20 enclosure. This unit is frame size C and measures 260 x 116 x 169 mm (10.24 x 4.57 x 6.66 in), so it mounts on a panel or wall inside a control cabinet.

The platform is modular. Communication option cards and I/O extension cards plug directly into the drive, so one drive family can be adapted to different machine requirements. A built-in PLC function lets simple Ladder Logic programs be written and executed inside the drive, which removes the need for a separate controller on small machines. A dynamic braking transistor is included for applications that have to stop a load quickly.

Please note: the operator keypad is not part of the drive. The drive is supplied with an LED status indicator, and the operator keypad is ordered separately as an option (Delta KPE-LE02).

Series status: the VFD-E series has been superseded in Delta's range. The Delta recommended replacement for this rating is the VFD13AMS43ANSAA - please compare the specifications against your application before substituting.

Key Features

• 7.5 HP (CT) rated output, 13 A rated output current, three-phase 380-480 V AC input - sized for low-horsepower constant-torque machinery

• Open-loop sensorless vector control - stable torque and speed regulation without a shaft encoder

• Built-in PLC function - simple Ladder Logic programs can be written and executed inside the drive, so small machines can run sequences without a separate controller

• Modular architecture with plug-in cards - communication option cards (DeviceNet, LonWorks, Profibus, CANopen, USB) and extension cards (digital I/O, analog I/O, relay outputs, encoder feedback) share one drive platform

• Dynamic braking transistor included - DC injection braking and dynamic braking are both supported for controlled stops

• Maximum output frequency 600 Hz

• IP20 enclosure, frame size C - compact panel and wall mounting inside a control cabinet

• DIN-rail mounting kits available as options (MKE-DRA / MKE-DRB) for fast cabinet assembly

• LED status indicator supplied with the drive; the operator keypad is an option and is ordered separately

• Not AC line regenerative - brake units (BUE-20015 / BUE-40015) and braking resistors are listed as separate accessories

Technical Specifications

Optional Accessories, Option Cards and Extension Cards

The items below are ordered separately and are not part of the drive. Use them to match the drive to a specific machine or control system.

Where This Drive Fits

• Constant-torque loads on low-horsepower machinery

• Machines that need a compact IP20 drive mounted inside a control cabinet

• Machines where a short logic sequence can run inside the drive instead of a separate PLC

• Installations that need a fieldbus connection (DeviceNet, Profibus, CANopen, LonWorks) or encoder feedback

• Equipment originally built with a Delta VFD-E series drive and now needing a matching replacement or spare

Compliance, Markings and Series Status

FAQ

Q: What is the power rating of this drive?

A: 7.5 HP at the CT (constant torque) rating, with a rated output current of 13 A.

Q: What supply does it need?

A: Three-phase AC, nominal 480 V, with an operating input range of 380-480 V.

Q: What motor control method does it use?

A: Open-loop vector (sensorless vector) control. Closed-loop control is not part of the standard specification; an encoder feedback card (EME-PG01) is available as an option.

Q: Does it have a built-in PLC?

A: Yes. Simple Ladder Logic programs can be written and executed in the drive.

Q: What is the enclosure rating and how is it mounted?

A: IP20, frame size C, 260 x 116 x 169 mm. The drive is designed to be mounted on a panel or wall inside a control cabinet. DIN-rail kits are available as options.

Q: Is an operator keypad included?

A: No. The drive is supplied with an LED status indicator; the operator keypad is ordered separately (Delta KPE-LE02).

Q: What is the maximum output frequency?

A: 600 Hz.

Q: Is a braking transistor included?

A: Yes, a dynamic braking transistor is included, and DC injection braking and dynamic braking are both supported.

Q: Are communication cards included?

A: No. DeviceNet, LonWorks, Profibus, CANopen and USB communication cards are available as options, together with digital and analog I/O, relay and encoder feedback extension cards.

Why Buy From Us

• Model matched before shipping: we check the part number against your existing unit or your motor nameplate and confirm the drive suits your supply and load before the order is packed.

• Accessory support: option cards, extension cards, DIN-rail kits, braking resistors, brake units and keypads can be quoted together with the drive.

• Flexible order quantity: sample and small-batch orders accepted.

• Technical documents on request: the VFD-E user manual and the VFD-E series catalogue are available - ask us and we will send them with your quotation.

Inquiry CTA: Send us your quantity, destination port and the part number of the unit you are replacing - we will confirm price, lead time and shipping.