Axpert-Eazy+ 4Q Series VFD

World’s Most Advanced 4Q Regenerative VFD

Amtech Electronics Axpert Eazy+ 4Q series VFD

The Next Generation Axpert-Eazy+ 4Q Series Regenerative VFD is the outcome of Amtech’s three decades of experience in motor control and automation. The Low harmonics, High efficiency Industrial Grade New Series is designed to meet the ever increasing expectations of our customers; deliver highest performance, protection and energy saving without compromising the user friendliness.

The 4Q Regenerative VFD has IGBT based converter which keeps the supply side line current harmonics below 5% and power factor to unity at rated load. It is also capable of feeding the excessive power generated by load back to the grid. It comes with fully configurable I/O and Functional Safety Functions and meets the international power quality standards such as IEEE 519-2014.

It displays various input parameters like voltage, current, voltage & current THD, line frequency, PF, DPF, power kW, Energy imported as well as exported, net energy, kVA and kVAR.

  • Range : 75...500 kW (100...670 HP)
  • Voltage : 380...480 V, 3-Phase, 50/60 Hz


  • Energy savings as it feeds back the excess power to grid from regenerative loads, connected at the output.
  • Reduces total harmonic distortion to draw sine wave current from the utility.
  • Minimized downtime due to reliable operation as it stabilizes DC voltage against mains and load fluctuations and provides stable AC voltage output.
  • Optimized cost and space as it includes an active supply unit and a line filter in drive.
  • Improves power factor to unity.


  • Centrifuges
  • Cranes and hoists
  • Un-winders
  • Paper machines
  • Regenerative application
  • Roller tables
  • Test jigs for dynamometers, gears and motor test benches
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