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WEG CFW110477T4SZ CFW11 400HP 477A 460V VFD - CFW
MODEL CFW110477T4SZ
Contact supplier for technical support on: 800-ASK-4WEG
$26,257.28 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: See conditions
Analog Inputs
2
Braking Unit
No
Configuration
Basic
Control Method
V/f
Sensorless Vector
Closed Loop Vector
PM Motor
Dynamic braking
No
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
3
Input Phases
3
Nominal Drive Input Voltage
460VAC
RFI filter
Yes
Safe Torque Off (STO)
No
Safety stop
No
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)
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