Product Description:

The DKR03.1-W200Z-BE32-00 is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat within the DKR Drive Controllers series. It serves as the power stage that converts incoming line energy into regulated three-phase output for coordinated motor motion. Motor feedback channels allow the controller to regulate torque and speed precisely on machine-tool, printing, and material-handling axes. Because power conversion and feedback processing are combined in one controller, the connected axis can follow commanded motion profiles with consistent synchronization.

The unit accepts a line supply of 3xAC 400–480 V ±10%, and a separate AC 230 V ±10% control circuit keeps the electronics active. At a switching frequency of 4 kHz, it can supply a continuous motor current of 92 A, corresponding to about 35 kW of mechanical drive capability, while transient overloads are covered by a peak limit of 141 A. Command values, diagnostics, and parameters are transmitted through the SERCOS interface, which provides deterministic fiber-optic communication with the higher-level motion controller. Digital servo and resolver feedback channels let the controller correct current vectors in real time for smooth acceleration and stable speed regulation.

The controller is line series 03, design version 1, and function module version 00. Thermal management uses air cooling with a built-in blower, which removes up to 1200 W of switching and conduction losses without requiring an external heat exchanger. The unit weighs 49 kg, so the cabinet structure must support its installed mass and leave a clear airflow path around the fan intake and exhaust. The blower-based cooling method also simplifies installation in cabinets that do not use liquid cooling circuits. Proper spacing around the housing helps prevent recirculation of warm exhaust air during extended operation.