R911281338 (DKR03.1-W100N-BE56-01-FW)

DKR Drive Controllers

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The R911281338 (DKR03.1-W100N-BE56-01-FW) is a BOSCH Rexroth DKR series drive controller engineered for operation of AC motors in environments such as printing and machining. It is configurable via standalone plug-in modules inserted into slots on the controller chassis. The unit features IP20 protection per IEC 529/EN 60529, supports a rated current of 100 A, and is equipped with a SERCOS interface for command input. The controller operates at 50-60 Hz with natural convection and a built-in blower for heat dissipation, typically releasing 1200 W during operation. The device functions optimally between ambient temperatures of 5°C and 45°C, and incorporates digital servo and resolver feedback. There is no internal bleeder or brake chopper; the DC bus is rigid. At least a 5-minute discharge interval is required after shutdown for the internal capacitors.

Technical Specifications

Product Type
Drive Controller

Use
Controlling AC Motors

Protection Rating
Class IP20

Operational Temperature
5 to 45 degrees C

Power Disconnect Time
5 minutes

Heat Dissipation
1200 watts

Convection Method
Natural

System Frequency
50-60Hz

Shipping Availability
Global

Industrial Usage
Printing and Machining Tools

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Internal Product Review

The Bosch Rexroth Indramat DKR03.1-W100N-BE56-01-FW drive from the DKR series is a high-reliability servo control unit. It features SERCOS command interface, air cooling with built-in blower, and resolver plus digital feedback. It is widely applied in aircraft manufacturing automation, robotic handling, and aerospace precision testing systems.