Product Description:

The DKR03.1-W200B-BE12-01-FW drive controller is produced by Bosch Rexroth Indramat for the DKR Drive Controllers series. It is designed to coordinate high-power servo axes by converting incoming mains power into regulated pulse patterns that control motor torque, speed, and position. The unit is installed in automation cabinets for machine tools, printing lines, and handling systems, where stable power conversion supports repeatable starts, controlled speed changes, and accurate stopping. Because the controller regulates output to the motor in real time, it can support coordinated axis behavior when a machine must synchronize feed, spindle, or transfer motion. It also exchanges status data with higher-level controls so protective functions can react to overload and fault conditions while the machine remains under supervised motion control.

Control data enter the drive through the Command interface, which is implemented here as a SERCOS interface, so fiber-optic rings can carry deterministic telegrams between the controller and a central motion CPU. Excess braking energy is dissipated by a factory-fitted chopper circuit with a bleeder, helping prevent DC-link overvoltage during rapid deceleration or load reversal. To maintain thermal limits, the power electronics use a built-in air blower that forces cabinet air across the heat sink instead of relying on external fans. Motor position is processed through digital servo and resolver feedback, allowing the same unit to work with high-resolution encoder signals as well as resolver transducers on different machine configurations. This flexibility is useful in systems that combine legacy axes with newer servo motors.

The controller is Design Version 1, indicating the assigned design release for this unit. It uses Function Numeric Version 01 for its operating profile, and the product is part of Line Series 03 within this drive range. Each coded value narrows the controller to a specific version within the product line. The DKR designation identifies the platform as a high-power member of the series.