Eine Moderne Windkraftanlage
KOSTAL variable frequency drives for roller bearing drives

Dynamic, accurate & reliable: KOSTAL variable frequency drives for roller bearing drives

Roller bearings are used in many different industrial sectors. As a field of application for the INVEOR, we are referring here specifically to large roller bearings for use in wind turbines. These roller bearings are driven by planetary gearmotors. With a precisely controlled roller bearing, high positioning accuracy, low starting torque and efficient torque compensation are possible. In interaction with drive controllers from KOSTAL, far-reaching possibilities emerge for roller bearings and roller bearing drives.

Abbildung eines Azimut-Wälzlagers mit KOSTAL Antriebsreglern

KOSTAL INVEOR MP: motor-mounted performance for azimuth roller bearing drives


In modern wind turbines, electric motors are used in the azimuth drives, which align the turbine house perfectly with the wind. Depending on the size of the turbine, up to eight geared motors drive these roller bearings. Synchronous control and even distribution of power to all motors are particularly important here.

With the KOSTAL INVEOR MP variable frequency drive, you get an excellent control unit for azimuth roller bearing drives. The design of the variable frequency drive allows a direct connection to the motor. Once installed, it forms a fixed unit with the roller bearing drive via the adapter plate.

The absence of electrolytic capacitors in the INVEOR's power electronics as well as its control technology, which features no sensors at all, guarantees reliable and low-maintenance operation in this environment.

Robust, functional and communicative: KOSTAL variable frequency drives for pitch systems

Nahaufnahme eines Wälzlager-Pitchsystems

In a wind turbine, pitch systems regulate the output of the turbine via the position of the rotor blades in relation to the wind. This allows the efficiency of the turbine to be adjusted perfectly to the prevailing wind strength. In a similar fashion to the azimuth drive, a pitch system is also driven by gearmotors. Precise positioning and the ability to adapt quickly to changing wind conditions are important requirements.

Our INVEOR MP variable frequency drive impresses customers with its sensorless positioning and a highly dynamic control process. Its good reliability guarantees high system availability and long maintenance cycles.

Our variable frequency drives for roller bearing drives

Motormontierter Frequenzumrichter KOSTAL INVEOR MP auf Drehstrommotor


Our motor-mounted Performance flagship with multi-pump operation and IP 65 protection class. Available in four sizes up to 30 kW and for a wide range of motors.

Ein KOSTAL INVEOR MP Modular Frequenzumrichter der Performance-Serie auf einem Elektromotor Dateiname: kostal-inveor-mp-modular-frequenzumrichter


Our robust and highly efficient Performance class drive controller for synchronous and synchronous reluctance motors in the extended speed control range.

Do you have any questions about our KOSTAL variable frequency drives for roller bearing drives?

Then complete our contact form or give us a call. We will answer your questions and help you to implement the right solution in your company.

KOSTAL support for new and potential customers

KOSTAL Industrie Elektrik GmbH & Co. KG / Business Unit Drives
Lange Eck 11
58099 Hagen, Germany

Telephone: +49 2331 8040 - 468
E-mail: sales-industrial@kostal.com

Eine Kundenberaterin telefoniert mit einem Headset

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KOSTAL variable frequency drives


Contact our KOSTAL Drives Technology Support Team.


Get information about encoderless control processes, operating concepts and more.

Line-Icon eines Frequenzumrichters auf einem Elektromotor

Variable frequency drives

Learn all about KOSTAL variable frequency drives and discover our product solutions.