R911287698 (DKR02.1-W300B-B)

Name: R911287698 (DKR02.1-W300B-B)
Brand: Indramat Drives
SKU: DKR02.1-W300B-B
Price: 878.00 USD
Availability: InStock

DKR Drive Controllers

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The Bosch Rexroth drive controller, MPN R911287698 (DKR02.1-W300B-B), is a modular device built for controlling and monitoring electric motors in applications such as NC machine tools and printing machines. It operates at a rated voltage of 3 x 400 to 480 VAC with a ±10% tolerance, and provides a nominal current of approximately 300A. The controller features air cooling via a built-in blower and incorporates a bleeder unit. Motor feedback options include digital servo and resolver feedback. It requires vertical installation within commercial machinery and must be parameterized for the connected motor prior to start-up. Permanent grounding is mandatory before power-up, and additional sensors or actuators may be required for optimal integration and safety. Underwater usage is strictly prohibited.

Technical Specifications

Product Group
DKR

Design
Modular

Application
Control and monitor electrical motors

Usages
NC machine tools, Printing machines

Installation
Vertical orientation

Connectivity
Additional actuators and sensors

Rated Power Voltage
3 x 400 to 480VAC

Voltage Tolerance
+-10%

Line Code
2

Leakage Current
More than 3.5mA

Operation
Trained and qualified personnel only

Ambient Condition
Not to be used under water

Packaging
Custom military-grade foam

Danger Precaution
Standstill mode before entering danger zone

Commercial Use
Only for installation in commercial machinery.

Frequently Asked Questions

How does air cooling with a built-in blower affect installation requirements?

It eliminates the need for external cooling systems, reducing footprint and setup complexity. However, proper airflow clearance around the unit is essential to prevent overheating.

Can the DKR02.1-W300B-B operate with resolver-based feedback alone?

Yes, it supports resolver-only setups where digital servo feedback isn’t required. This flexibility makes it adaptable to older motor systems still using resolvers.

Why is a nominal current of 300A significant in industrial use?

It indicates the drive can reliably power large motors without current derating. This capacity is valuable in heavy-duty sectors such as metal forming and printing.

How does the line series 02 affect compatibility with other system components?

It aligns with other controllers in the same DKR family, simplifying integration. Users can standardize across machines without major wiring or software changes.

Does the built-in blower add to maintenance needs?

Yes, fan units require periodic inspection and dust removal to maintain efficiency. Neglecting airflow maintenance can lead to thermal stress on internal components.

Common Misspellings

DKR021W300BB

DKR02 1 W300B B

dkr02.1-w300b-b

DKR2.1-W300B-B

Internal Product Review

The Bosch Rexroth Indramat DKR02.1-W300B-B drive handles both digital servo and resolver feedback. It delivers approx 300 A nominal current with 300 A rating under a built-in blower cooling and bleeder configuration. It suits motion control systems in CNC machining, printing presses, and packaging lines.