R911279681 (DKR03.1-W100N-BE93-01-FW)

DKR Drive Controllers

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The R911279681 (DKR03.1-W100N-BE93-01-FW) is a drive controller from the Bosch Rexroth DKR series designed for industrial automation. It is specified for operation at ambient temperatures from +5°C to +45°C and supports installation altitudes up to 1000 meters, tolerating a maximum temperature of +55°C. Power input is via a 3-phase AC supply (400–480V, 50–60 Hz) with 230V control voltage. The unit provides a continuous power output of 26 kW at a continuous current of 71 A and supports a 4 kHz drive frequency. Key features include SERCOS command interface, digital servo and resolver feedback, five interface slots, a basic DKR03.1-W100-B unit, air cooling via a built-in blower, IP20 protection, and a continuous regenerated power supply of 22 kW with 900 W heat dissipation. This configuration does not include a bleeder or brake chopper.

Technical Specifications

Product
Bosch Rexroth Drive Controller

Ambient Temperature
+5 to +45 ͦC

Maximum Temperature
+55 ͦC

Installation Height
up to 1000 meters above sea level

Power Input
3-phase AC 400 to 480V

Control Voltage
AC 230V

Tolerance
±10%

Power Voltage
0 to 380V

Basic Unit
DKR03.1-W100-B

Slots in Unit
5

Maximum Heat Dissipation
900 W

Protection Class
IP20

Weight
49 kg

Blower
Built-in

Interface
SERCOS

Feedback
Digital Servo and Resolver

Numeric Code
93

Version Numeric Code
01

Firmware
Not included

Frequently Asked Questions

Common Misspellings

Internal Product Review

The DKR03.1-W100N-BE93-01-FW from Bosch Rexroth Indramat belongs to the DKR series of advanced drive controllers. It features a 400–480V AC input voltage, 900 W maximum heat dissipation and SERCOS interface communication. It is used in resolver-based motion feedback integration in industrial systems.