R911284794 (DKR04.1-W300N-BE56-01-FW)

Name: R911284794 (DKR04.1-W300N-BE56-01-FW)
Brand: Indramat Drives
SKU: DKR04.1-W300N-BE56-01-FW
Price: 317.00 USD
Availability: InStock

DKR Drive Controllers

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Phone:
1-888-551-3082

Email:
sales@indramat-usa.com

The R911284794 (DKR04.1-W300N-BE56-01-FW) is a DKR04 series drive controller from Rexroth Indramat, featuring a SERCOS interface for CNC connectivity via fiber optic (fiber not included). The module accepts digital servo and resolver feedback, with function numeric code 56 and version 01. It is intended for use with Indramat 2AD/ADF spindle motors and LSF/LAF linear motors. Rated for 300 A nominal current and 400–400 V AC input, it supports operational frequencies up to 800 Hz at 4 kHz PWM or up to 1600 Hz at 8 kHz switching frequency. There is no integrated bleeder or brake chopper; cooling is provided by a built-in blower. Heat dissipation is 2250 W. The unit holds an IP20 ingress rating, weighs 150 kg, and operates within a 5–45°C temperature range. Installation must be performed by qualified personnel.

Technical Specifications

Family
DKR04

Interface
SERCOS

Feedback
Digital Servo and Resolver

Control Units
CNCs

Function Numeric Code
56

Version Function Numeric Code
01

Current Rating
300 Amps

Voltage Rating
400 to 400 Volts AC

Cooling Method
Air cooled with integrated blower

Weight
150 kilograms

Dimensions
1080 x 571 x 315 millimeters

Protection Class
IP20

Global Shipping
Yes

Installation/Commissioning
By trained personnel only.

Frequently Asked Questions

What role does digital servo feedback play in drive performance?

It ensures precise position and speed control by minimizing error between commanded and actual motion. This is essential for applications requiring high accuracy such as robotics or printing.

Why is air cooling with a built-in blower important for this drive controller?

It reduces the need for external cooling units, simplifying installation. Proper airflow ensures stable performance in high-duty cycles.

Can the cooling method influence placement of the controller in a cabinet?

Yes, adequate clearance must be maintained to allow unrestricted airflow from the built-in blower. Poor ventilation may lead to overheating and reduced lifespan.

What precautions are needed when installing the DKR04.1-W300N-BE56-01-FW in multi-axis systems?

The DC bus connection must be coordinated across all axes to prevent imbalances. Proper grounding and shielding are also essential to avoid communication errors.

How does the absence of a bleeder circuit affect regenerative braking?

Without an internal bleeder, excess energy cannot be dissipated in the drive. Users must ensure external energy handling methods are in place.

Common Misspellings

DKR041W300NBE5601FW

DKR04 1 W300N BE56 01 FW

dkr04.1-w300n-be56-01-fw

DKR4.1-W300N-BE56-01-FW

Internal Product Review

The Bosch Rexroth Indramat DKR04.1-W300N-BE56-01-FW drive controller supports a SERCOS command interface. It equips digital servo & resolver feedback, air cooling with built-in blower, and a 300 A nominal current. In industrial automation, it suits CNC machine control, printing presses, and robotics motion loops.