Four Quadrant Drive, Axpert-Eazy+ 4Q Series VFD

Four Quadrant Drive

The Four Quadrant Drive (4QD) refers to a motor control system capable of operating in all four quadrants of the speed-torque plane. It allows for forward and reverse motion, as well as motoring and regenerative braking. This system is widely used in electric vehicles and industrial machinery for efficient control.

The Next Generation Axpert-Eazy+ 4Q Series Regenerative VFD is the outcome of Amtech’s three decades of 4Q Drive, Four Quadrant Drive, Regen Drive, Regenerative Drive, 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