DKR02.1-W300B-B Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911287698
The Bosch Rexroth Indramat DKR02.1-W300B-B is part of the DKR Drive Controllers series and serves as a digital intelligent AC drive controller. It offers a continuous current of 141 A at 4 kHz and a peak current of 212 A, with a rated power voltage of 3-phase AC 400 to 480 V. The drive features air cooling with a built-in blower, an internal bleeder, and supports digital servo and resolver feedback.
Internal Product Review
The DKR02.1-W300B-B is a digital intelligent AC drive controller built for demanding motion systems, with air cooling from a built-in blower and an internal bleeder. At 4 kHz, the unit delivers about 55 kW continuous drive power and 212 A peak current, supporting strong acceleration and stable load handling. Digital servo and resolver feedback adds dependable control precision, making this controller a very capable choice for heavy industrial drive applications.
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Product Description:
The DKR02.1-W300B-B drive controller is manufactured by Bosch Rexroth Indramat and belongs to the DKR Drive Controllers series. As a digital intelligent AC drive controller, it regulates high-power servo axes in machining centers and automated assembly lines by converting three-phase supply energy into controlled motor currents and channeling regenerative energy into its brake circuitry. Its closed-loop operation helps the machine maintain stable speed and position during frequent load changes, which is important on heavy-duty axes that start, stop, and reverse repeatedly during production.
This controller is supplied with an internal bleeder, so excess kinetic energy is converted to heat inside the cabinet-mounted brake resistor. At 4 kHz PWM, it delivers a continuous drive current of 141 A, producing about 55 kW of shaft power, while the brake resistor can dissipate 1.5 kW and absorb 240 kWs per braking cycle. The electronics are fed by a control supply of 230 V AC ±10%, and the power stage accepts three-phase 400–480 V mains. A built-in blower forces cooling air across the heat sink, maintaining total heat dissipation at 1800 W. Digital servo and resolver feedback are processed simultaneously, which allows the controller to work with different motor feedback systems. The unit is design version 1 in line series 02.
When connected to a mains window of 400–480 V AC, the unit can supply a peak current of 212 A for rapid acceleration or positioning demands before returning to its continuous operating range. The blower expels the generated heat, and total losses do not exceed 1800 W, a figure used when sizing cabinet ventilation. Despite its high rating, the assembly weighs only 104 kg, which keeps transport and placement manageable for a drive in this power class. The combination of strong braking capacity, dual-channel feedback support, and high peak current makes the controller suitable for gantry axes and spindle drives that alternate quickly between motoring and regeneration during extended production runs.
