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The WEG CFW110477T4OYZ is a CFW11 series premium vector variable frequency drive (VFD) rated for 477A output current and 400 HP normal duty at 380-480V three-phase input. This high-performance AC drive features closed-loop vector control with encoder feedback, Optimum Flux control, and supports dynamic braking and regenerative options.

MODEL CFW110477T4OYZ

BRAND

WEG

SKU

2521269

WEIGHT

287.000 lb

UOM

each

Contact supplier for technical support on: 800-ASK-4WEG

$32,654.64 Each

Prices are subject to change

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Typically Ships in: 1 day

Returnable: See conditions

Analog Inputs

Braking Unit

Configuration

With options

Control Method

V/f
Sensorless Vector
Closed Loop Vector
PM Motor

Dynamic braking

Electronic supply

Internal

Enclosure rating (IP)

IP20

Enclosure rating (NEMA)

Open

HP Rating (Normal Duty)

400

Input Amerage Rating (Heavy Duty)

370

Input Amerage Rating (Normal Duty)

477

Input Amperage Rating (Normal Duty)

477

Input phases

Input Phases

Nominal Drive Input Voltage

460VAC

RFI filter

Yes

Safe Torque Off (STO)

Yes

Safety stop

Yes

UL Listed

Yes

Applications involving high inertia loads, when applied short time deceleration, a large amount of energy returns from the motor to the VSD. To handle this energy, reguilar VSDs have to dissipate it as heat in power resistors. Such resistors are usually large and some installation criteria must be considered due to their heat dissipation. As an alternative to the use of braking resistors, CFW11 features a special braking method in vector control mode known as Optimal Braking. This innovation delivers a high performance braking torque without requiring a braking resistor. The following graph shows the advantages of using Optimal Braking compared to other braking methods, thus ensuring an optimized and low cost solution for braking applications.

Linear and adjustable V/F, VVW (Voltage Vector WEG) and vector control are available on CFW11
Two types of vector control: sensorless and closed loop vector control (encoder Interface required)
Sensorless vector control permits high torque and quick response in open loop, even at low speeds
The self-tuning function sets the vector control or VVW with the motor and to application load used
By the adjustable V/F control, it is possible, for example, to adjust a quadratic V/F curve, providing energy savings for quadratic torque loads (e.g.: centrifugal pumps and fans)