Product Description:

The DKR03.1-W200B-BA05-01-FW is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat and placed within the DKR Drive Controllers series. As a three-phase inverter with internal energy-handling hardware, it supplies regulated power to synchronous and induction servomotors used in automated machinery. This supports coordinated motion, controlled acceleration, and dynamic braking in multi-axis production cells where several axes must respond predictably to changing load conditions.

At a switching frequency of 4 kHz, the drive delivers a continuous output of 92 A, while short transients can reach 141 A without derating. The factory current rating of 200 indicates the controller class used for matching motor sizes and cable selection in long-term duty. The internal power section provides approximately 35 kW of continuous mechanical output, and the auxiliary brake resistor absorbs 1 kW continuously for repeated deceleration of high-inertia loads. A built-in bleeder circuit dissipates brake energy inside the housing, command signals are received through an analog interface, and thermal management relies on forced-air cooling with an integral blower to keep internal temperatures within normal operating limits.

Power is drawn from a three-phase supply of 3xAC 400 – 480 V ±10%, while the control electronics operate from a separate AC 230 V ±10% feed to keep the logic isolated from mains fluctuations. The internal resistor can absorb braking pulses totaling 150 kWs per cycle before reaching its thermal limit, and overall losses reach 1200 W, so cabinet ventilation must remove a substantial heat load during operation. Motion feedback can be accepted from digital servo encoders or resolver signals, which allows the controller to work with different motor feedback formats in established servo installations. The controller is design version 1, function module version 01, and line series 03. It weighs 49 kg, which should be considered for panel mounting and cabinet support planning.