R911281703 (DKR02.1-W300B-BE11-02-FW)

Name: R911281703 (DKR02.1-W300B-BE11-02-FW)
Brand: Indramat Drives
SKU: DKR02.1-W300B-BE11-02-FW
Price: 658.00 USD
Availability: InStock

DKR Drive Controllers

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Current response time:

6 Minutes 37 Seconds

Phone:
1-888-551-3082

Email:
sales@indramat-usa.com

The Bosch Rexroth drive controller MPN R911281703 (DKR02.1-W300B-BE11-02-FW) is engineered for integration with ungrounded three-phase power systems and utilizes a serial interface link for PC communication. It features two analog diagnostic outputs (±10V, 4mA load) and supports motor feedback via digital servo and resolver feedback, connected through a proprietary cable. The device incorporates a bleeder resistor rated at 720 kW for energy dissipation, with cooling provided by a built-in air blower. The SERCOS interface enables command communication. System start lockout is managed by applying 20–30 VDC. Installation requires mounting on a back wall with threaded holes. Firmware is stored in an EPROM within a software module identified by a rating plate. The controller supports a current rating of approximately 300A.

Technical Specifications

Isolating Transformer Usage
Yes

Serial Interface Connection
Yes

Analog Diagnostic Outputs
2

Output Voltage Range
+/-10V

Current Load
4mA

Starting Lockout Function Activation
20VDC to 30VDC

Bleeder Resistor Included
Yes

Bleeder Brake Energy
720kW

Cabinet Back wall
Must Feature Threaded Holes

Plug-in Connectors Condition
Must be dry and non-conductive

Drive-related Problems Indication
H1 Display and SERCOS interface

Rating Plates Location
Bottom Left and Front Side

Software Module
Firmware in EPROM format

Frequently Asked Questions

How does the integrated bleeder configuration affect system safety?

The bleeder safely discharges stored DC-link voltage during shutdowns. This prevents residual energy from damaging components or posing risks to operators.

What type of communication interface is used in the DKR02.1-W300B-BE11-02-FW?

It uses the SERCOS interface, which ensures deterministic timing for CNC and PLC systems. This minimizes latency in motion synchronization across multiple axes.

How does current capacity influence motor performance in this controller?

The 300 A stage enables handling of high torque transients. This makes it suitable for heavy-duty machining tasks with rapid load changes.

What happens if the drive experiences thermal overload?

It automatically de-rates current output to protect internal components. This allows continued operation while preventing overheating damage.

In what way does the standardized footprint simplify cabinet engineering?

Consistent dimensions enable easy replacement or scaling. Engineers can reuse panel layouts without major redesign.

Common Misspellings

DKR021W300BBE1102FW

DKR02 1 W300B BE11 02 FW

dkr02.1-w300b-be11-02-fw

DKR2.1-W300B-BE11-02-FW

Internal Product Review

The Bosch Rexroth Indramat DKR02.1-W300B-BE11-02-FW is an industrial drive controller in the DKR family. It integrates a bleeder circuit for safe DC-link discharge, supports native SERCOS communication, and uses an internal blower for cooling. It finds use in CNC machine tools, printing presses, and precision motion automation systems.