Pitch Drive Controller


The COMBIVERT P6 combines the functions of a pitch inverter, brake control and brake supply module, a charging device for the energy storage system and a fully-fledged PLC in just one device. This means that it is particularly easy for users to respond flexibly to various requirements without having to give away individual system expertise. 

During operation, the drive controllers adapt the angle of the rotor blades to the wind, optimising the power of the wind turbine. If a fault occurs in the wind turbine itself, the COMBIVERT P6 pitch inverters quickly turn the rotor blades out of the wind to protect the turbine from dangerous excess rotation speeds.

Completed with the right motor and safety brake for the pitch system, three COMBIVERT P6s take over the safety run mechanism, playing an active role in the wind turbine’s safety system. If a critical system condition arises, the pitch system, which is certified by TÜV Rheinland, triggers a safety run, achieving Performance Level d according to EN ISO 13849-1. 

In addition to a high level of integration, the pitch drive controllers can be flexibly connected to various turbine controls. Compact dimensions, a robust design and various performance classes make the COMBIVERT P6 a universal solution for onshore and offshore applications – even for the most powerful turbines.



  • Wide power range
  • Integrated PLC with monitoring
  • TÜV-verified functional safety  
  • Brake supply
  • Brake control
  • Charging device for the energy storage system


Your contact
Keb productmanagerment dirk ehlert kundenprojekte windpower

Dirk Ehlert

Application Automation & Drives

+49 5263 401-634
+49 151 29907381

Technical data

Power class 3-phase, 400 V AC
Power range 18 kW … 42 kW
Output nom. 45 A … 120 A, max. for 3 s 90 A … 350 A
Frequency 0 … 200 Hz
Brake power supply 24 V, High-voltage brake 50 V … 300 V
EMC filter Integrated, class C2
Fieldbus systems PROFIBUS, CANopen, Interbus, PROFINET Slave, Powerlink Controlled Node, EtherCAT Slave


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Installation P6 Pitch Inverter
(pdf, 10.11.2022, 8 MB)
Safety manual P6
(pdf, 26.06.2020, 3 MB)
Manual C5/6, H6, P6 Interface CAN
(pdf, 27.05.2019, 593 KB)
Programming manual P6 Firmware 2.5
(pdf, 27.05.2019, 5 MB)
Programming manual P6 Firmware 2.6
(pdf, 27.05.2019, 5 MB)
Programming manual P6 Firmware 2.7
(pdf, 22.02.2021, 6 MB)