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

DKR Drive Controllers

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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

Common Misspellings

1620 Old Apex Road
Cary, NC 27513, USA

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Fax: 1-919-867-6204

[email protected]

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Indramat USA 1 Year Warranty

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We offer a repair service for the DKR02.1-W300B-BE11-02-FW.

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.