DKR02.1-W300N-BE11
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The Bosch Rexroth Indramat DKR02.1-W300N-BE11 is part of the DKR Drive Controllers series and has a nominal current of approximately 300 Amps. It is designed with an air-cooled built-in blower and supports digital servo and resolver feedback. This controller features a SERCOS command interface and operates without a brake chopper.
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Product Description:
The DKR02.1-W300N-BE11 is a high-power drive controller produced by Bosch Rexroth Indramat within the DKR Drive Controllers series. Intended for large servo axes and spindle drives, the unit converts incoming three-phase energy into regulated DC and PWM outputs, enabling coordinated motion in machining centres, presses, and similar automation cells. It sits between the supply module and the motor, executing velocity and torque commands generated by the machine control. Integrated diagnostics and parameter storage simplify replacement, while the rugged metal housing supports panel mounting in industrial cabinets.
Communication with the machine control takes place through the SERCOS interface, enabling deterministic cyclic data for velocity setpoints, status words, and parameter access. Thermal management relies on air cooling with a built-in blower; the fan draws cabinet air across the heat sinks so no external liquid circuit is required. The power section shares a rigid DC bus without a brake chopper, meaning excess regenerative energy must be handled elsewhere in the installation. Continuous output is supported by a nominal current of 300 A, suitable for large torque motors, and position accuracy is maintained by accepting digital servo and resolver feedback from the connected motor.
In normal operation the controller may reach a current rating of 300 A, but transient peaks are limited by firmware supervision to protect semiconductors and the common DC link. This particular hardware belongs to the Bosch Rexroth Indramat portfolio and is part of the DKR Drive Controllers series, yet it is further distinguished by design version 1, which fixes component layout and firmware compatibility, and by the line series 02 that identifies the second hardware generation. These identifiers help maintenance staff select matching spare parts and ensure parameter files load without conversion.
