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DKR04.1-W300N-BT29-02-FW

DKR Drive Controllers

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1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

The Bosch Rexroth Indramat DKR04.1-W300N-BT29-02-FW drive controller from the DKR Drive Controllers series integrates seamlessly into modern automation architectures and delivers high-precision performance with a nominal current of Approx 300A and a current rating of 300. This controller, designated as Design Version 1, leverages a robust Line Series 04 power stage to support dynamic loads and maintain regulator stability under varying torque demands. Communication is handled via the high-speed SERCOS interface, enabling deterministic data exchange and synchronized multi-axis motion. A built-in blower provides active air cooling, ensuring consistent heat dissipation even in demanding industrial environments.



Reliability is further enhanced by the controller’s Bleeder Configuration: No bleeder/Without brake chopper, rigid DC bus, which preserves bus voltage stability and simplifies DC‐link protection schemes. The system’s native support for both digital servo feedback and resolver feedback ensures accurate position and velocity monitoring across a wide range of motor types. Its compact mechanical design follows the DKR product series footprint, offering straightforward retrofit into existing control cabinets. Maintenance personnel benefit from modular access to power and control terminals, reducing downtime during service intervals.



In applications ranging from packaging machines to CNC machining centers, the DKR04.1-W300N-BT29-02-FW drive controller delivers precise torque control, high throughput, and enhanced system up-time. Tight integration with Bosch Rexroth Indramat automation components and standardized communication protocols accelerates commissioning and simplifies diagnostic workflows. This robust controller is engineered for continuous operation, providing long-term reliability in high-speed, high-precision industrial processes.

Technical Specifications

Bleeder Configuration
No bleeder/ Without brake chopper, rigid DC bus

Command Interface
SERCOS interface

Cooling Method
Air (built-in blower)

Design Version
1

Line Series
04

Motor Feedback
Digital servo and resolver feedback

Product Series
DKR

Current Rating
300

Nominal Current
Approx 300A

How does the DKR04.1-W300N-BT29-02-FW handle thermal management in continuous operation?

It uses active air cooling via an integrated blower, which helps maintain stable operating temperatures. This reduces thermal stress on power components during extended duty cycles.

Does the lack of a bleeder unit affect system safety during rapid deceleration?

Without a brake chopper, excess regenerative energy must be managed externally. Integrators typically pair it with external resistors or energy recovery units for safe dissipation.

What motor feedback options are supported by the DKR04.1-W300N-BT29-02-FW?

It supports both digital servo and resolver feedback. This flexibility ensures compatibility with a wide variety of servo motor types.

How does the rigid DC bus design affect protection schemes?

A stiff DC bus helps maintain voltage stability during dynamic load changes. This reduces the complexity of protective circuits in the DC-link system.

How is downtime minimized during servicing of this drive controller?

Its modular access points allow technicians to replace or inspect sections without full disassembly. This design shortens maintenance intervals and reduces production stoppages.

DKR041W300NBT2902FW

DKR04 1 W300N BT29 02 FW

dkr04.1-w300n-bt29-02-fw

DKR4.1-W300N-BT29-02-FW

Internal Product Review

The DKR04.1-W300N-BT29-02-FW controller from Bosch Rexroth offers a nominal and rated current of 300 A and communicates via SERCOS with built-in blower cooling. It supports digital servo and resolver feedback and omits a bleeder. It is ideal for retrofit in CNC machines, packaging systems, and robotic assembly lines.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the DKR04.1-W300N-BT29-02-FW.
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