DKR 3.1-W200N-BE23-00 Bosch Rexroth Indramat
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MPN: R911264457
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The Bosch Rexroth Indramat DKR 3.1-W200N-BE23-00 is part of the DKR Drive Controllers series and uses a SERCOS command interface. This controller has digital servo and resolver feedback with an air cooling method using a built-in blower. It comes in a rigid DC bus design without a bleeder or brake chopper.
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Product Description:
The DKR 3.1-W200N-BE23-00 is a digital drive controller produced by Bosch Rexroth Indramat within the DKR Drive Controllers series. Designed for high-power servo axes, the unit converts three-phase mains power into a controlled DC link and a pulse-width-modulated output that governs compatible synchronous and induction motors in industrial automation. The controller regulates torque, speed, and position from a compact rack module. It is suitable for machining centers, printing lines, and material-handling equipment that require deterministic motion cycles and coordinated axis control.
Communication with higher-level motion processors is handled through the SERCOS interface, enabling cyclic setpoint exchange and real-time diagnostics over fiber-optic rings. The drive’s continuous current channel is rated at 200 A, giving it the capacity to operate large main-spindle motors without thermal derating under permitted operating conditions. Internal temperature is managed by a built-in air blower that forces cabinet air across the heat sinks, eliminating the need for an external coolant network. The feedback electronics accept digital servo and resolver feedback, allowing the controller to process signals from high-resolution optical encoders or rugged resolvers. The controller is design Version 1, placing it in the first mechanical platform of the 3.x generation.
The permissible overload current reaches 141 A, supplying short bursts of torque during acceleration or shock loading before current limiting intervenes. The power section has no bleeder or brake chopper and uses a rigid DC bus, so regenerative energy must be returned to the mains or absorbed by external hardware. Application-specific behavior uses function module version 00, and the unpopulated option slot leaves the general drive functions available without specialized add-ons. The unit is classified as a Digital Intelligent AC Drive Controller with onboard regulation for demanding motion applications. Its integrated control electronics process motor feedback and command data directly, reducing reliance on external logic for the inner torque, velocity, and position loops.
