4 quadrant energy feedback frequency inverter/ AC drive

It adopts the latest and most sophisticated control technology, and use the energy regeneration of IGBT DC supply device, so as to finish the bi-directional control of rectifier energy feedback and realize the real four quadrant run.

Technique features

u  Renewable control, can help to save much energy on the use of inertial load crane application system.

u  Controllable unit power factor “1” can help to reduce the harmonic to less than 2%.

u  Applicable to monitor operation condition and fault through the keyboard, keep various control variables a second before the fault, such as the voltage, current, frequency, power and temperature, so as to follow and refresh the data records.

Technique features

u  Rectifier/feedback unit adopt sine wave way to provide renewable electric energy feedback to grid automatically, this is more energy-saving and environmental than the traditional braking unit and braking resistor.

u  Excellent closed loop vector control performance to realize **0% torque output at zero speed.

u  Four speed control modes: no PG vector control, PG vector control, V/F control without PG, V/F control with PG.

Application area:

Harbor machinery, mine hoist, conveyer belt, centrifuge, pour-into washing machine, pharmaceutical machinery, centrifugal casting machine, and metal processing machinery such as large punching machine.