Product Description:

The DKR03.1-W200Z-BE14-02-FW digital intelligent AC drive controller is manufactured by Bosch Rexroth Indramat and belongs to the DKR Drive Controllers series. It serves as the central power and motion module in automated machining centers, packaging lines, and handling equipment, converting incoming three-phase power into precisely modulated output for synchronous and induction motors. By combining power electronics with closed-loop velocity and position processing, the device enables coordinated multi-axis movement and maintains commanded profiles even when mechanical loads fluctuate.

Commanded trajectories are exchanged through a SERCOS interface, so the controller integrates directly with real-time fieldbus networks. At a switching frequency of 4 kHz, it can supply a continuous phase current of 92 A, which supports sustained torque output at the connected motor. Mains power is accepted from a three-phase source rated at 3xAC 400–480 V ±10%, while internal logic and gate drives draw their auxiliary supply from AC 230 V ±10%. Thermal stability is supported by a built-in air blower, which forces air across heat sink fins to keep semiconductor junction temperatures within safe limits under full current. The drive is part of Line 03 and Version 1, and it accommodates both digital servo feedback and resolver signals for flexible motor compatibility.

Short bursts of mechanical acceleration are handled with a peak output of 141 A, allowing the axis to overcome static friction or sudden load steps without losing synchronization. When operated continuously at the 4 kHz carrier, the power section can deliver about 35 kW of mechanical power to the motor shaft. During operation, the controller itself releases roughly 1200 W as heat, so the enclosure must provide adequate ventilation. Installation weight is 49 kg, so mounting structures must account for this mass during panel integration.