DKR03.1-W200N-B Bosch Rexroth Indramat
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MPN: R911267287
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The Bosch Rexroth Indramat DKR03.1-W200N-B is part of the DKR Drive Controllers series and features a continuous drive current of 92 Amps at 4 kHz, with a peak current capability of 141 Amps. It uses air cooling with a built-in blower and is rated for a control voltage of 230 V AC and a protection class of IP20. The controller supports digital servo and resolver motor feedback and has a maximum output frequency of 1600 Hz at 8 kHz.
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Product Description:
The DKR03.1-W200N-B is a three-phase drive controller built by Bosch Rexroth Indramat for high-power servo axes in the DKR Drive Controllers series. The unit interfaces between the plant supply and Indramat synchronous or induction motors, supplying regulated current for controlled speed and torque operation inside an industrial automation cell. It is part of product group DKR, belongs to line series 03, and uses design version 1. This arrangement allows the controller to serve as the power stage between incoming electrical energy and precise motor motion.
During steady operation, the controller delivers a continuous drive current of 92 A when the pulse-width modulation frequency is 4 kHz, while short acceleration commands can draw up to 141 A from the DC bus. The inverter stages generate carrier frequencies up to 1600 Hz, allowing fine torque modulation on modern motor windings. Internal logic and gate drivers are fed by a 230 V AC control supply rated at 200 VA, isolated from the main power path. An enclosure classified as IP20 requires cabinet mounting but keeps terminals accessible in clean electrical rooms. Cooling is handled by a built-in air channel, and the blower draws a maximum of 2 A to force ambient air across the heat sinks. Because the DC link is rigid and the model ships without a brake chopper, excess regenerative energy must be managed externally in the no-bleeder arrangement.
Thermal limits are quantified: the forced-air duct carries away 800 W, and overall conversion losses reach 1200 W at rated load. To remain within these values, the installation site may not exceed 55 °C, and drive derating begins above that point. Altitudes up to 1000 m are permissible without current reduction, which keeps performance stable in most factory settings. The controller can process resolver and digital servo feedback channels at the same time, which supports different encoder arrangements on multi-axis machines. A rigid DC bus also helps limit voltage swing when energy is shared between connected axes.
Frequently Asked Questions about DKR03.1-W200N-B:
Q: What is the required control voltage for the DKR03.1-W200N-B drive controller?
A: The DKR03.1-W200N-B operates using a control voltage of 230 V AC.
Q: What is the maximum peak drive current supported by the DKR03.1-W200N-B?
A: This drive controller can provide a peak drive current of 141 A.
Q: What cooling method is utilized in the DKR03.1-W200N-B controller?
A: The DKR03.1-W200N-B uses a built-in blower for air cooling.
Q: What motor feedback options are available for the DKR03.1-W200N-B?
A: Digital servo and resolver feedback types are supported for motor feedback with this controller.
Q: What level of protection is offered by the DKR03.1-W200N-B controller?
A: This model provides a protection class rating of IP20.
