Product Description:

The DKR02.1-W200N-BE06-01-FW is a drive controller produced by Bosch Rexroth Indramat within the DKR Drive Controllers series. As a digital intelligent AC drive controller, it supplies regulated three-phase power to servo or spindle motors in automated machining and handling systems. In multi-axis equipment, it serves as the regulated power stage between the supply section and the connected motor, supporting accurate motion control. The module belongs to line series 02, design version 1, and function module version 01. Its rigid DC bus without a brake chopper requires external energy dissipation equipment when dynamic braking is required.

This controller communicates with the automation host through a SERCOS interface, enabling cyclic exchange of position, velocity, and diagnostic data. Its power stage is fed by a three-phase supply of 3 x AC 400 to 480 V ±10%, while internal logic and fans draw AC 230 V ±10% control power. At a 4 kHz switching frequency, the unit delivers a continuous current of 120 A, corresponding to about 47 kW of mechanical output when paired with an Indramat synchronous motor. Short-term overload is supported by a current rating of 200 A, and the controller uses digital servo and resolver feedback for closed-loop regulation. Temperature rise is limited by a built-in air blower, so separate cabinet airflow is not required.

During acceleration, the drive can briefly supply a peak current of 141 A, giving the motor reserve for short torque spikes without tripping limits. At rated duty, the controller rejects up to 1600 W of heat through its integrated fans, which should be considered in enclosure ventilation. The controller has a mass of 104 kg, so its mounting arrangement must support the load during installation. The rigid DC bus architecture without a brake chopper reduces component count but shifts regeneration management to external resistors or the upstream supply.