Product Description:

The DKR03.1-W200N-BE38-00 is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. It serves as the power and control stage for large AC servo axes in industrial motion systems. The unit is identified in the product line as Line 03, Design Version 1, and Function-Module Version 00. It has a current rating of 200 A, which indicates the maximum continuous capability expected from matching supply components. Because the unit is supplied without a brake chopper, regenerated energy must be absorbed by an external bleeder resistor or a common DC link.

At a switching frequency of 4 kHz, the drive provides a continuous output of 92 A and about 35 kW of mechanical power when paired with compatible motors. The control electronics draw power from a single-phase source at AC 230 V ±10%, while the main inverter section accepts a three-phase line of 3×AC 400–480 V ±10%. During short acceleration bursts, the stage can furnish a peak phase current of 141 A. Total heat dissipation is 1200 W, so cabinet airflow must be sized to limit temperature rise around the controller. This electrical arrangement supports use in systems that separate control power from the main inverter supply.

System integration is handled through the SERCOS interface, enabling deterministic exchange of command and diagnostic data with motion controllers. Component temperature is moderated by a built-in air blower, so no external heat sink is required. Dual-channel motor feedback accepts both digital servo signals and resolver tracks, allowing the controller to work with different Bosch Rexroth motor families. The assembled unit weighs 49 kg, which should be considered when the mounting structure is selected. This combination of interface, cooling, and feedback features supports use in high-power motion control cabinets.