Pitch drive controller for a wind turbine, pitch drive control device, and method for controlling a pitch drive controller

A pitch drive controller for a wind turbine having a plurality of rotor blades fixed on a rotor hub for rotational adjustment of the rotor blades on the rotor hub by an electric motor, the pitch drive controller comprising:

• at least one pitch drive control device for each of the rotor blades configured to actuate at least one pitch drive motor, the at least one pitch drive control device having in each case an electronic actuation unit for the respective at least one pitch drive motor, a control output to the respective at least one pitch drive motor and a computing unit with at least one processor configured to operate the respective at least one pitch drive control device, the at least one pitch drive control device having in each case a local communication connection and being connected or connectable to the other pitch drive control devices of the wind turbine in a cross-communication via the local communication connection.