Industrial Systems

Regenerative converter VF61R


This regenerative converter is capable of continuous operation and a power supply rate of nearly 1.0, while suppressing current distortion factor using our proprietary switching method and being less susceptible to the effects of supply voltage distortion. This meets the demand for clean power supplies.


Dramatic suppression of power harmonics by means of our proprietary control method (instantaneous distortion minimization control)

Contributes to clean power sources by suppressing overall current distortion at the rated load to 5% or less and conforming to guidelines for harmonic suppression measures.

High power factor

The value of the operation power factor is 99% or more at the rated load and 95% or more at 30% or more of the rated load. This enables the equipment to be built smaller than before.


Power source waveform during power regeneration

100% continuous power regeneration operation

Delivers the capabilities of a regenerative converter for AC drive, whether used alone or with multiple units. The operation of multiple units is particularly advantageous because power regeneration has the added effect of power cancelation and high AC drive efficiency, and combining these with a high power rate results in a further reduction in equipment load.

Load rate/power rate characteristic

Load rate/power rate characteristic


Capacity 11~55 kW
Supply voltage 3-phase 3-wire 200 V class: 200 to 230 V ±10% 50/60 Hz ±5% 400 V class: 380 to 460 V ±10% 50/60 Hz ±5%
Input power rate 99% or more (at 100% load) 95% or more (at 30% load or more)
High frequency percentage 5% or less (at 100% load)
DC output voltage 200 V class: 320 to 358 V 400 V class: 640 to 716 V
Overload capacity 150% for 1 minute