R911269170 (DKR02.1-W300N-BE12-01-FW)

Name: R911269170 (DKR02.1-W300N-BE12-01-FW)
Brand: Indramat Drives
SKU: DKR02.1-W300N-BE12-01-FW
Price: 481.00 USD
Availability: InStock
Rating: 4.6 (4 reviews)

DKR Drive Controllers

Rated 4.6 stars (4 total reviews)

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The R911269170 (DKR02.1-W300N-BE12-01-FW) by Bosch Rexroth is a drive controller suitable for integration in automation systems such as printing machines and machine tools. The unit supports five plug-in module slots for system adaptation and features a SERCOS interface for digital communication. It is powered by three-phase AC supply at 400–480 V, with a control voltage requirement of AC 230 V ±10%. The controller provides up to 93 kW peak power and handles peak currents of 212 A, with an approximate nominal current of 300 A. It utilizes air cooling via a built-in blower and is designed without a brake chopper and with a rigid DC bus. The device accepts both digital servo and resolver feedback for precise motor control. It operates within a temperature range of +5°C to +45°C and meets IP20 environmental protection standards.

Technical Specifications

Basic Unit
5 plug-in slots

Power Source
3-phase AC 400 – 480 V

Control Voltage
AC 230 V (+/-10% tolerance)

Trained Personnel Requirement
Yes

Operating Temperature
+5 to +45 degree Celsius

Storage Temperature
-30 to +80 degree Celsius

Interface
SERCOS interface

Monitoring Functions
Yes

Rated Current
300 A

Peak Power
93 kW

Peak Current
212 A

Dissipated Heat
1800 W at constant current of 141/110 A

Firmware Module
ESM02.3 (Mounted in U5 slot)

Position Control
Digital servo and resolver feedback

Ingress Protection
IP20

Frequently Asked Questions

What installation considerations apply to the DKR02.1-W300N-BE12-01-FW without a bleeder?

Without a bleeder, excess regenerative energy must be managed externally, requiring careful system-level planning. Integrators may need external braking modules or energy recovery systems.

How does a rigid DC bus affect multi-axis drive systems?

A rigid DC bus allows shared energy across axes, improving efficiency in regenerative operations. However, it requires precise system design to avoid unstable voltage conditions.

What is the practical impact of a 300 A current rating in high-duty cycles?

This rating supports very high torque demands, making it suitable for large industrial actuators. Engineers must ensure cabling and protection devices can handle peak current safely.

Why is the SERCOS interface advantageous in motion synchronization?

SERCOS ensures deterministic timing, eliminating drift between axes in coordinated motion. This results in smoother path accuracy for applications like CNC or robotics.

How does digital servo feedback differ from resolver feedback in this controller?

Digital feedback offers higher precision and faster response times, improving accuracy. Resolver feedback provides robustness in harsh environments but with lower resolution.

Common Misspellings

DKR 02.1-W300N-BE12-01-FW

DKR02.1-W300N-BE-12-01-FW

DKR02.1-W300N-BE12-O1-FW

DKR02.1.W300N.BE12.01.FW

DKR021W300NBE1201FW

DKRO2.1-W3OON-BE12-O1-FW

DKR02 1 W300N BE12 01 FW

dkr02.1-w300n-be12-01-fw

DKR2.1-W300N-BE12-01-FW

Internal Product Review

The Bosch Rexroth Indramat DKR02.1-W300N-BE12-01-FW drive controller is designed for precise motion control with a 300 A current rating, making it perfect for industrial automation systems. Its real-time SERCOS interface ensures high accuracy, suitable for applications in robotics and manufacturing. With built-in air cooling and rugged construction, it supports reliable continuous operation.