DKR02.1-W300N-BE24-02-FW Bosch Rexroth Indramat
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MPN: R911279025
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The Bosch Rexroth Indramat DKR02.1-W300N-BE24-02-FW is a digital AC drive controller from the DKR Drive Controllers series. It features a continuous power output of approximately 55 kW at 4 kHz, with a peak current of 212 Amps and operates on a rated power voltage of 3-phase 400 to 480 Volts AC. The unit includes a built-in blower for air cooling and supports SERCOS command interface and digital servo or resolver feedback.
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Product Description:
The DKR02.1-W300N-BE24-02-FW drive controller is manufactured by Bosch Rexroth Indramat within the DKR Drive Controllers series. It is a Digital Intelligent AC Drive Controller that serves as the power stage for large gantry, printing, or metalworking axes that require precise torque and velocity control. By converting the plant's three-phase mains into a regulated DC bus and modulating inverter output, it coordinates servo and spindle motors in real-time automation tasks.
The unit communicates with the motion task processor over the SERCOS interface, allowing cyclic setpoint exchange and diagnostic feedback through a fiber-optic ring. Its power section accepts a mains supply of 3xAC 400–480 V (±10%), while internal logic circuits draw AC 230 V control power, so separate low-power wiring can be fused independently of the mains disconnect. At the standard 4 kHz switching frequency, the inverter can furnish a continuous current of 141 A, which corresponds to about 55 kW of shaft power for compatible motors. The nominal current rating is 300 A. The model is supplied without a bleeder or brake chopper, so excess regenerative energy must be handled by external components or the common DC link.
For short accelerations, the drive delivers up to 212 A peak, providing reserve capacity during dynamic load surges before thermal limits intervene. Thermal management relies on a built-in air blower that draws cabinet air across the heat sink; under maximum load, this produces 1800 W of heat dissipation that must be removed by the enclosure ventilation system. Resolver or digital servo feedback inputs support automatic motor recognition and closed-loop regulation. The unit has a weight of 104 kg, is built as design version 1 on line 02 modules, and uses a current-loop bandwidth matched to its base switching rate.
