Product Description:

Bosch Rexroth Indramat manufactures the DKR03.1-W200N-BE04-00 within the DKR Drive Controllers series. Classified as a Digital Intelligent AC Drive Controller, it supplies regulated three-phase power to high-torque servo and spindle motors used in automated production lines. The device belongs to line series 03, is delivered in design version 1, and carries function module version 00. A rigid DC bus without a brake chopper reduces component count while supporting rapid energy exchange between connected axes. It forms the central power stage between the plant’s line supply and the servo actuators.

The drive’s continuous output profile is anchored by a current of 92 A at 4 kHz carrier frequency, allowing long-term operation of large motors without derating. When coupled with its continuous mechanical power capability of 35 kW under the same switching rate, the controller can sustain heavy process loads such as milling heads or large gantry axes. Transient events are handled by a peak current reserve of 141 A, giving the connected axis sufficient acceleration torque. Internal logic and auxiliary circuits are supplied from a separate AC 230 V ±10% control voltage, while the power section accepts a mains range of 3×AC 400–480 V ±10%. Separating these supplies simplifies protective design and keeps the control electronics isolated from high-energy switching.

Thermal management relies on air cooling with a built-in blower, and the inverter dissipates up to 1200 W during rated service, so cabinet airflow must be sized accordingly. At 49 kg, the controller can be mounted directly on a backplane without special lifting equipment, yet it hosts digital servo and resolver feedback channels for tight position control. Communication to the master controller passes through the high-speed SERCOS interface, allowing the drive to participate in synchronized multi-axis cycles with deterministic timing.