R911275068 (DKR04.1-W400N-BE79-01-FW)

DKR Drive Controllers

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6 Minutes 40 Seconds

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1-888-551-3082

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The Rexroth Indramat DKR series drive controller, MPN R911275068 (DKR04.1-W400N-BE79-01-FW), is designed for use with electrical motors in applications such as printing machines and NC machine tools. It operates with a control voltage of AC 230 V (±10%) at 300 VA, a frequency range of 50–60 Hz, and a power voltage range of 0–380 V. This controller features SERCOS interface connectivity, supports digital servo and resolver feedback, and is equipped with a firmware module with function numeric code 79. The unit can dissipate up to 1800 W of heat through an integrated fan blower, manages a peak regenerated power of 66 kW for 10 seconds, and is rated for 400 A. It weighs approximately 150 kg, provides IP 20 protection, and is optimized for operation in ambient temperatures from 5 to 45 °C. The design utilizes a rigid DC bus without a brake chopper and forms part of the DKR product series, design version 1, line series 04.

Technical Specifications

Rexroth Indramat Drive Controllers
Yes

Control Voltage AC
230 Volts

Tolerance Level
+10 volts or -10 volts

Control Voltage Frequency
50 to 60 hertz

Control Voltage Power
300 VA

Power Voltage
0-380 Volts

Feedback Provided
Digital Servo and Resolver

Interface
SERCOS

Function Numeric Code
79

Firmware
FW

Peak Regenerated Power
66 kW for 10 seconds

Weight
150 kilograms

Accessories Weight
1-7 kilograms

Cooling Method
In-built fan blower

Heat Dissipated
1800 watts

Total Heat Released
2500 watts

Recommended Ambient Temperature
5 to 45 degrees celsius

Derating at 55 degrees
80%

Protection
IP 20 as per EN60529/IEC529 standard.

Frequently Asked Questions

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Internal Product Review

The Bosch Rexroth Indramat DKR04.1-W400N-BE79-01-FW servo drive belongs to the DKR series. It comes with a SERCOS command interface, digital servo/resolver feedback, and air cooling via built-in blower. This drive is suitable for textile industry and industrial machinery requiring precise control and stable motor feedback.