Product Description:

The DKR03.1-W200Z-BE32-01-FW is a drive controller produced by Bosch Rexroth Indramat for the DKR Drive Controllers series. It is a digital intelligent AC drive controller used to coordinate servo axes in large machinery such as presses, gantry systems, and machining centers. In machine tools and transfer systems, it acts as the power stage between the supply network and the motor while the higher-level controller issues motion commands. By converting three-phase mains power into regulated motor current, the unit delivers position, speed, and torque control for connected synchronous or induction motors in automated production lines.

Its communication layer relies on the SERCOS interface, allowing deterministic exchange of setpoints and diagnostic data with a central PLC. During continuous operation, the controller supplies up to 92 A of motor current, which supports mechanical output near 35 kW for demanding axis duties. Internal logic circuits, fans, and feedback evaluators are energized by a separate AC 230 V auxiliary supply, while the power section operates from an industrial mains range of 3 x AC 400 to 480 V with a tolerance of ±10%. This split supply arrangement keeps the control section active independently of the main power stage and supports reliable signal processing. Integrated evaluation for digital servo and resolver feedback supports both absolute and incremental position loops, allowing the controller to work with different motor feedback formats.

Thermal management uses air cooling with a built-in blower, and the cooling system removes up to 1200 W of internal heat from the heat sink during operation. The drive can reach a peak output of 141 A, so forced airflow is used to keep power components within their intended temperature range under heavy load. The unit is line 03, design version 1, and function module version 01, which matches the established module format used in multi-axis cabinets. Overall mass is 49 kg, so the supporting enclosure and mounting hardware must be sized for that load. Adequate clearance around the housing also helps maintain airflow and accommodates the space needed for installation.