FST-900 four quadrant energy feedback frequency inverter

FST-900 is a sereis of four quadrant energy feed back frequency inverter with vector control.

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 input voltage, current, frequency, input 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 200% 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.

FST-900 four quadrant energy feedback frequency inverter