Frequency inverters

KIMO Tabelle

Frequency inverters – overview

How does a frequency inverter work?

A frequency inverter is the appropriate motor control device for continuous speed adjustment.

In contrast to the soft starter, it does not operate the motor rigidly on the mains at a constant frequency, but regulates both the operating voltage and the operating frequency and can therefore run the motor energy-efficiently over a wide speed range.

A regenerative frequency inverter also offers the possibility of recovering the braking energy, i.e. feeding it back into the supply.

   All KIMO® Frequency inverters in an overview


KIMO Fig. Drehzahlregelung am Beispiel der Lüftertechnik

Applications

Frequency converters ensure an increase in motor efficiency in part-load operation. They offer the possibility to control the speed of the motor.

But the benefits are not limited to this area, as the following articles illustrate:


KIMO Frequenzumrichter TRANSOMIK U1

Frequency inverters
AC 110 – 480 V / 1.5 – 30 kW

TRANSOMIK® U1

Features

  • Self optimizing PWM without a fixed switching frequency with the following advantages:
    ‣ Low motor noise
    ‣ High starting torque
    ‣ Optimum smooth rotation at very low speeds
  • DC braking possible without a braking chopper
  • Control voltage derived from DC link:
    ‣ Operation at 80 V and above
    ‣ Controlled braking possible during supply disturbance
    ‣ Supply from DC source possible
  • Easy to service, all control connections pluggable
  • No parameter setting necessary
  • Space for customized options:
    ‣ Technology board

Applications

  • Speed variation for all types of three-phase induction motors
  • Low-noise flow control of pumps and fans
  • Refrigeration compressors
  • Transport technology
  • Positioning drives with cyclic acceleration and braking

   Show TRANSOMIK® U1 product series


KIMO Fig. Elektronisches Bremsen

Regenerative frequency inverter
3AC 200 – 480 V / 4 – 200 kW

TRANSOMIK® U2

Features

  • Self optimizing PWM without a fixed switching frequency with the following advantages:
    ‣ Low motor noise
    ‣ High starting torque
    ‣ Optimum smooth rotation at very low speeds
  • Regenerative / no braking chopper required
  • Control voltage derived from DC link:
    ‣ Operation at 80 V and above
    ‣ Supply from DC source possible
  • Easy to service, all control connections pluggable
  • No parameter setting necessary
  • Space for customized options:
    ‣ Technology board

Applications

  • Speed variation for all types of three-phase induction motors
  • Low-noise flow control of pumps and fans
  • Dynamic drives
  • Positioning drives with cyclic acceleration and braking

   Show TRANSOMIK® U2 product series