Vectrue Technology® - WEG Variable Speed Drive Control Technology

• Four control modes in one drive, linear and adjustable V/F, VVW (Voltage Vector WEG), sensorless vector and closed loop vector (encoder interface factory built)
• Sensorless vector control allows for high torque and quick response in open loop, even at low speeds
• Self-tuning function automatically matches VSD with motor - load when on Sensorless, VVW and closed loop vector mode
• Through adjustable V/F control it is possible to adjust a quadratic V/F curve and that implies energy saving when quadratic torque loads (e.g.: centrifugal pumps and fans) are being driven

Remote Keypad

The keypad can be remote assembled by using this configuration, degree of protection IP56 can be achieved.

Main Characteristics

• Power supply:
  • 200 V single-phase: rated output current from 6 to 10 A (1.5 to 3 cv)
  • 220 V three-phase: rated output current from 6 to 211 A (1.5 to 75 cv)
  • 380-480 V three-phase: rated output current from 3.6 to 211 A (2 to 175 cv)
• Compact structure, ideal for installation in confined spaces
• High precision and reliability in speed and torque control
• Robust hardware
• HVAC version
• Inductors on the DC link: no line reactance needed, installation on any network, no minimum impedance restrictions, compliance with IEC61000-3-12 standard
• Isolated input for incremental encoder
• Isolated RS485 interface
• 8 digital inputs and 5 digital outputs
• Smart cooling system: monitoring of the heatsink temperature and internal air on the electronic boards, monitoring and indication of the speed and running time of the fan

Technical Features

• Multi-Speed: up to 8 preset speeds can be programmed.
• PID Regulation: eliminates the use of an external controller for closed loop control, thus great performance of speed and torque can be achieved.
• Ride Through: embedded in the CFW700 control this function prevents the drive from tripping during some power outage. It uses the kinetic energy stored through a forced deceleration imposed to the load by the VSD control algorithm.
• Speed/Torque Regulation: open and closed loop (encoder feedback required).
• Flying Start: it is able to start smoothly a motor connected to a rotating load regardless of rotation direction.
• Control Options for DC Bus Regulation: prevents the drive from tripping when short deceleration time is required, vital for applications with high inertia loads.
• S ramp: the smoothness at the starting can be mandatory for process e.g. the beverage industry, by setting up properly this functionality production losses caused by traditional starting methods can be avoided.
• Three-Wire Start/Stop Control: no retentive contact can command the drive to start/stop the motor.
• Electronic Potentiometer: the drive keeps increasing motor speed as long as the digital input remains closed.
• Skip Frequency: for some applications specific frequencies must be avoided in order to protect the machine against resonance effect.
• Motor Thermal Curve Adjustment: the possibility for separate adjustment between motor and drive allows for a much more effective protection for overload cycles.
• Copy Function: by using the flash memory card MMF-02 parameter settings can be easily stored ensuring integrity and safety in case of replacement of the drive is needed.