DKR02.1-W300N-BA09-01-FW

DKR02.1-W300N-BA09-01-FW is manufactured by Bosch Rexroth Indramat as part of the DKR Drive Controllers series. It is a digital intelligent AC drive controller that regulates AC motor operation. The unit uses line series 02, design version 1, and function module version 01. Its analog command interface accepts analog control signals, while digital servo and resolver feedback provide motor position and speed information for closed-loop control.

The controller has a current rating of 300 for sizing within the product range. At a 4 kHz switching frequency, it supplies 141 A continuously and approximately 55 kW of continuous drive power. Peak drive current is 212 A for short-duration load demands. Rated power input is three-phase AC 400–480 V with a ±10% tolerance, while the control circuitry requires AC 230 V with a ±10% tolerance.

The rigid DC bus has no bleeder or brake chopper, so the controller does not provide an internal path for dissipating regenerative braking energy. Cooling is supplied by a built-in air blower to remove operating heat. Total heat dissipation is 1,800 W, which must be considered when ventilating the enclosure or installation area. The controller weighs approximately 104 kg.