Product Description:

The DKR02.1-W200Z-BE37-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat as part of the DKR Drive Controllers series. It is designed to regulate torque, speed, and position of high-power servo and spindle motors in automated machinery, making it a central element between the power supply and the motion axes. Its control architecture supports coordinated motion where accurate response and stable regulation are required during continuous industrial operation.

Communication with higher-level PLCs is handled through the SERCOS interface, allowing deterministic cyclic data exchange. Under a switching frequency of 4 kHz, the controller can supply a continuous armature current of 120 A, translating into about 47 kW of mechanical output when matched with compatible motors. Logic circuits are fed from a separate AC 230 V control supply, so control electronics remain operational even when the main bus is isolated. Thermal management relies on an internal fan that provides forced built-in air blower cooling, maintaining component temperatures within safe limits during sustained loading. The motion control core belongs to line series 02 and design version 1, and its function module version 01 supports both digital servo and resolver feedback processing for precise closed-loop regulation across a broad range of axes.

The power section is dimensioned for short-term demands up to 141 A, giving machinery sufficient reserve for acceleration spikes without exceeding drive ratings. It operates directly from a three-phase mains window of 3xAC 400–480 V, enabling deployment in common industrial distribution grids. During full-load service, the controller releases approximately 1600 W of waste heat that must be removed by cabinet airflow. Despite its large output envelope, the unit’s mass remains manageable at 104 kg, which simplifies mounting in multi-axis drive racks and reduces the need for added structural support.