Product Description:

The DKR03.1-W100Z-BE32-01-FW is a drive controller manufactured by Bosch Rexroth Indramat within the DKR Drive Controllers series. Classified as a digital intelligent AC drive controller, it supplies regulated three-phase power and closed-loop motion commands to servo and spindle motors used in automated machining, packaging, and material-handling equipment. By converting incoming mains voltage to a controlled output and exchanging real-time axis data with higher-level controls, the unit serves as the central power and motion stage for high-torque production axes. Its role is to coordinate motor response with machine commands so speed and torque remain consistent during demanding motion cycles.

Axis data are exchanged through the SERCOS interface, giving deterministic communication with the motion CPU. Logic electronics are energized from a separate AC 230 V (±10%) control supply, while the power section connects to a 3xAC 400–480 V (±10%) mains bus. At a 4 kHz switching frequency, the inverter can deliver a continuous output of 71 A and produce roughly 26 kW of mechanical power for sustained duty. The unit has a current rating of 100, belongs to Line 03, and uses Design Version 1 with Function Module Version 01. These details identify the controller build used for the power stage and control section.

Heat generated by the power electronics is removed by a built-in air blower, and this cooling method must dissipate up to 900 W during rated operation. The steel chassis weighs 49 kg, which helps support stable cabinet mounting and resists vibration in industrial installations. Position and speed loops are closed using digital servo and resolver feedback, enabling the controller to work with both high-resolution encoders and resolver-based motors. Unobstructed airflow is important for maintaining reliable thermal performance during repeated starts, stops, and load changes.