Product Description:

The DKR03.1-W200Z-BE27-01-FW is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat and included in the DKR Drive Controllers series. As a stand-alone axis amplifier, it converts three-phase mains power into regulated output for servo and spindle motors used in machining centers, printing lines, and material handling equipment. The unit operates as a command-level drive component that closes velocity and position loops while exchanging setpoints and diagnostic data with upper-level controls through fiber-optic networks.

The drive communicates through a SERCOS interface, allowing deterministic cyclic data exchange with motion controllers. Under a 4 kHz pulse-width-modulated carrier, it can sustain a continuous current of 92 A, which indicates the steady thermal load the power stage can supply to the motor windings. At the same switching frequency, its continuous mechanical output is rated at about 35 kW, making it suitable for large gantry or spindle axes. Short-term torque demands can be met by a peak current capability of 141 A, which provides additional acceleration and braking capacity. Internal logic, I/O, and blower power are supplied from a separate AC 230 V control voltage so the control section can remain energized when the power stage is isolated.

The main power section accepts a 3 x AC 400 to 480 V supply with a tolerance of ±10%, matching common factory mains. Thermal energy created by the switching devices is removed by a built-in air blower cooling system, and the residual losses reach 1200 W, which is important for cabinet ventilation planning. With a mass of 49 kg, the unit requires rigid panel mounting and suitable support during installation. Coding information such as line series 03, design version 1, function module version 01, and a current rating of 200 A helps confirm compatibility with digital servo or resolver feedback motors used on the same platform.

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