Product Description:

The DKR03.1-W200N-BE56-01-FW is a drive controller produced by Bosch Rexroth Indramat for the DKR Drive Controllers series. Classified as a digital intelligent AC drive controller, it connects servo motors to the plant power grid while performing real-time current and motion regulation. In industrial automation, the unit serves multi-axis machining centers, material-handling cells, and similar equipment where fast closed-loop torque control and fieldbus communication are required. Its control structure is suited to axes that must respond quickly to changing loads while maintaining stable speed and position behavior.

This controller exchanges set points and status through the SERCOS interface, allowing deterministic communication with CNC or PLC hosts. During continuous operation at a 4 kHz switching frequency, the power stage delivers 92 A of output current, translating into roughly 35 kW of mechanical power for connected Indramat motors. Internal electronics are supplied by a control voltage of AC 230 V ± 10 %, so the cabinet must provide an auxiliary single-phase feed. Thermal management relies on a built-in air blower that forces cabinet air across the heat sink, and regenerated energy is returned to the DC bus because no brake chopper is installed. Digital servo and resolver feedback channels are available for position and speed loops, and the current rating class of 200 indicates the unit's size within the DKR family.

During rapid accelerations, the drive can supply a peak current of 141 A, which supports high-inertia loads without encoder loss. Mains power is accepted at 3 x AC 400 to 480 V ± 10 %, matching common industrial feeders, and version identifiers such as design 1, function module 01, and line series 03 distinguish this unit within the product range. Under full electronic and blower load, the assembly releases 1200 W of heat, so cabinet ventilation must remove that thermal load from the enclosure. With a mass of 49 kg, the unit requires sturdy panel-mounting hardware and adequate support inside standard cabinets.