DKR 3.1-W200N-BE38-00 Bosch Rexroth Indramat
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MPN: R911263449
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The Bosch Rexroth Indramat DKR 3.1-W200N-BE38-00 is part of the DKR Drive Controllers series. This controller uses a SERCOS interface for command and offers digital servo and resolver feedback for motors. It features a rigid DC bus with no brake chopper and uses built-in blower air cooling.
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Product Description:
The DKR 3.1-W200N-BE38-00 is classified as a Digital Intelligent AC Drive Controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. Intended for multi-axis machining centers and handling equipment, the unit converts line power into regulated DC power and controlled three-phase outputs for compatible servo motors. Its regulation circuits manage torque and velocity loops for synchronous and asynchronous motors used in automated production lines. Power electronics, motor feedback processing, and fieldbus communication are housed in one frame, reducing the number of separate control components required in the drive system.
Communication with higher-level controls is handled through the SERCOS interface, allowing high-speed cyclic exchanges of setpoints, operating data, and diagnostic information. The power stage has a 200 A current rating and supports a peak drive current of 141 A for transient operating demands. These current values allow the controller to manage rapid acceleration and changing loads while maintaining regulated motor output. Heat generated by the power stage is removed by a built-in air blower, eliminating the need for a separate cooling fan attached to the controller. Position and speed loops use digital servo and resolver feedback, allowing the controller to receive signals from compatible digital encoders or two-phase resolvers without additional feedback interface cards.
Energy returned by decelerating axes is routed to the rigid DC bus because the controller has no bleeder hardware. An external braking arrangement is required when regenerated energy cannot be absorbed safely by the connected bus system. The controller is design version 1, which indicates the applicable product generation for its electrical and mechanical configuration. Its Function Module is version 00, identifying the base module configuration used for this model. Motion regulation, operating diagnostics, and communication logic remain integrated within the enclosure, while the rigid DC-bus connection supports energy exchange with other connected drive components.
