DKR02.1-W200B-B Bosch Rexroth Indramat
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MPN: R911283003
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The Bosch Rexroth Indramat DKR02.1-W200B-B is a digital intelligent AC drive controller and part of the DKR Drive Controllers series. It features a continuous current rating of 120 Amps at 4 kHz and supports a rated power voltage of 3xAC 400 to 480 V. The drive has a built-in blower for cooling and weighs approximately 104 kilograms.
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Product Description:
Bosch Rexroth Indramat manufactures the DKR02.1-W200B-B as part of the DKR Drive Controllers series. This digital intelligent AC drive controller converts supply power into a regulated three-phase output for servo axes and integrates an internal bleeder so regenerated energy is dissipated inside the unit. By combining closed-loop torque, speed, and position control, it links CNC or PLC commands to mechanical motion in presses, gantries, and machine tools, where fast acceleration and controlled braking are required for repeatable industrial automation cycles.
The power section accepts a rated supply of 3 x AC 400–480 V with a permissible ±10% variation, while the control electronics run from a separate AC 230 V auxiliary feed with the same tolerance. At a 4 kHz switching frequency, the drive can deliver a continuous phase current of 120 A, which corresponds to 47 kW of motor power. For rapid load changes, it can momentarily raise output to 141 A. Resulting switching and conduction losses are released as 1600 W of heat and are removed by a built-in air blower that forces air through the heat sink. The internal 200 A current rating provides margin between continuous and peak operation, and digital servo or resolver feedback interfaces keep the control loops synchronized with rotor position.
During braking events, the controller routes excess DC-bus energy to the factory-installed resistor, which can dissipate 1.5 kW continuously and absorb up to 240 kWs per stop without exceeding thermal limits. This capability, together with the internal bleeder circuit, helps protect upstream supply components and prevents overvoltage tripping. The forced-air-cooled enclosure weighs 104 kg, allowing panel mounting with standard lifting hardware. The unit is design version 1 and part of Line 02 within the DKR family, and its 200 A current class helps distinguish it for use with large-frame asynchronous or synchronous servo motors.
Frequently Asked Questions about DKR02.1-W200B-B:
Q: What type of bleeder configuration does the DKR02.1-W200B-B include?
A: The DKR02.1-W200B-B features an internal bleeder for energy dissipation.
Q: What is the continuous power rating of the DKR02.1-W200B-B at 4 kHz?
A: This drive controller delivers a continuous power output of approximately 47 kW at 4 kHz.
Q: What is the rated power voltage for the DKR02.1-W200B-B drive controller?
A: It operates with a rated power voltage of 3-phase AC 400 to 480 V, with a tolerance of ±10%.
Q: What feedback options are available on the DKR02.1-W200B-B drive controller?
A: The DKR02.1-W200B-B uses digital servo and resolver feedback for motor control.
Q: How is the DKR02.1-W200B-B drive controller cooled?
A: This model features air cooling with a built-in blower to manage heat dissipation.
