75HP WEG CFW11 SERIES NEMA1 460VAC 3PH INPUT VFD CFW110105T4ON1Z

WEG CFW11 high technology Variable Frequency Drive Control of three-phase induction motors and permanent magnets synchronous motors - Magnet, the CFW11 Series achieves the performance increase for the most complex drive systems. Design exclusive for industrial or professional use, the CFW11 presents many innovations adding significant benefits to customers, a lot for its simplicity of installation and operation, based in the Plug-and-Play philosophy also allowing simple and quick installation of its accessories.

Vectrue Technology

• Without Dynamic Braking Transistor
• 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)
• Built-in inductors on the DC Link
• Space saving in the panel
• Built-in USB port Inverter smart cooling system
• Several communication protocols available (Modbus-RTU, Modbus-TCP, Profibus-DP-V1, DeviceNet, CANopen, EtherNet/IP, EtherCAT, PROFINET-IO and BACnet)
• High precision and reliability in speed and torque control
• Maximum 45°C ambient temperature without derating

Optimal Braking

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.

Applications

Its vast range of functions, easy configuration, installation and operation, in addition to the versions for electrical and modular panel mounting, make the CFW11 suitable for applications in different sectors of the industry.