R911286385 (DKR04.1-W300N-BE16-02-FW)

Name: R911286385 (DKR04.1-W300N-BE16-02-FW)
Brand: Indramat Drives
SKU: DKR04.1-W300N-BE16-02-FW
Price: 785.00 USD
Availability: InStock

DKR Drive Controllers

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The Bosch R911286385 (DKR04.1-W300N-BE16-02-FW) is a DKR series drive controller engineered to manage main spindle motors, linear motors, and frameless spindle motors. This unit integrates auxiliary plug-in modules, a DSM software module, and a SERCOS command interface card. It operates with a nominal current of approximately 300 A and supports a power voltage up to 380 V. Cooling is achieved via a built-in blower, and the controller contains an internal position loop and emergency stop shutdown device. The design features air cooling without a brake chopper or bleeder and supports digital servo and resolver feedback. Approximate weight is 150 kg.

Technical Specifications

Product Type
Drive Controller

Auxiliary Plug-In Modules Availability
Yes

Command Interface Card Availability
Yes

Operating Voltage
0-380 Volts

Cooling Method
Built-In Blower

Connection
Direct AC Line

Position Loop
Internal

Installation
Built-In Components

Heat Dissipation
Built-In Blower

Motor Feedback
Digital Servo and Resolver Feedback

Software Modules
Pluggable and Replaceable

Total Heat Dissipation
2250 Watts

Command Communication
SERCOS Interface

Optional Braking Resistor
Available

Function Numeric Code
02

Version Function Numeric Code
16

Weight
150 Kilograms

Design
Type 1 Compact

Cooling Features
Built-In Heat Sink, Air Vent and Air Duct

Commissioning
Flexible Drive Concept

Applications
Main Spindle Control Applications.

Frequently Asked Questions

How does a rigid DC bus affect installation requirements?

A rigid bus requires stable upstream supply conditions and proper system-wide energy handling. It minimizes flexibility but reduces complexity within the drive itself.

Why is a SERCOS interface significant in modern automation?

SERCOS provides deterministic, high-speed communication for synchronized multi-axis motion. It ensures precise coordination in CNC and robotics environments.

What type of feedback is supported by the DKR04.1-W300N-BE16-02-FW?

It uses digital servo and resolver signals, allowing compatibility with a wide range of motors. This ensures precise position and speed control across varied load conditions.

Can this drive controller be used in retrofitting older CNC machines?

Yes, but only if the machine supports SERCOS or can be upgraded to it. Careful evaluation of motor compatibility and system wiring is required.

What are common failure points to watch for in air-cooled drives like this?

Dust buildup, fan wear, and blocked airflow are typical risks. Regular inspection and filter cleaning are critical for maintaining stable operation.

Common Misspellings

DKR041W300NBE1602FW

DKR04 1 W300N BE16 02 FW

dkr04.1-w300n-be16-02-fw

DKR4.1-W300N-BE16-02-FW

Internal Product Review

The DKR04.1-W300N-BE16-02-FW drive controller is the product of Bosch Rexroth Indramat. It features a SERCOS command interface, digital servo and resolver feedback, built-in blower cooling, and rigid DC bus. It is commonly deployed in precision motion control systems like AC spindle drives, linear motors, and frameless spindle applications.