Product Description:

The DKR03.1-W200B-BE32-01-FW is an AC drive controller produced by Bosch Rexroth Indramat for the DKR Drive Controllers series. As a digital intelligent AC drive controller, it manages power conversion and axis regulation for high-capacity industrial servomotors, linking the power section with motion control systems in automated machinery. In plant installations, it supplies regulated three-phase output, coordinates braking energy, and exchanges status data with upper-level motion processors.

The controller accepts a mains supply of 3xAC 400 ... 480 V with a tolerance of ±10% and communicates with motion modules through the SERCOS interface. At a carrier frequency of 4 kHz, the power stage delivers a continuous output of ca. 35 kW while sustaining 92 A of armature current, and transient demands can rise to 141 A. Its nominal current rating is 200 A, which corresponds to the internal conductor sizing and protection thresholds. Feedback channels accommodate both digital servo and resolver signals for precise speed and position loops. The unit belongs to line series 03, carries design version 1, and includes function module version 01.

Auxiliary electronics are supplied from AC 230 V with a tolerance of ±10%, isolating the logic circuits from the main power bus. A built-in blower forces air through the heat-sink channels, and the internal bleeder network diverts regenerated energy into a brake resistor rated for 1 kW of continuous dissipation. The same resistor can absorb up to 150 kWs during short deceleration cycles, and the remaining heat is released through the fins and airflow. Aggregate thermal losses of 1200 W must be removed by the enclosure ventilation to keep internal temperatures within limits, and the housing mass of 49 kg adds thermal inertia without reducing panel spacing.