R911288102 (DKR04.1-W400N-BE56-01-FW)

Name: R911288102 (DKR04.1-W400N-BE56-01-FW)
Brand: Indramat Drives
SKU: DKR04.1-W400N-BE56-01-FW
Price: 311.00 USD
Availability: InStock

DKR Drive Controllers

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The R911288102 (DKR04.1-W400N-BE56-01-FW) is a Rexroth drive controller from the DKR series, configured for air cooling through a built-in blower. It is engineered to control Rexroth Indramat AC main spindle motors, frameless spindle motors, and linear motors using a SERCOS interface for command communication. This controller supports digital servo and resolver feedback, operates with a rated current of 400 A, and is designed for direct mains supply connections of 3xAC 400V...480V. The standard version lacks a bleeder and features a rigid DC bus. The operating firmware is installed onto EPROMs in DSM software modules, commonly in slot U5, and is required for system operation. The unit incorporates a mains contactor and an emergency stop device, and should be installed and operated according to manual specifications.

Technical Specifications

Product Type
Rexroth Drive Controller

Motor Control
Digital Control

Cooling
Air with Built-in blower

Rated Current
400 Volts

Design
Standard

Bleeder
None

Communication Interface
SERCOS

Firmware
FW (to be ordered separately)

Power Input
3xAC 400V...480V

Plug-in Slots
U1 to U5 (adaptable to various applications)

Typical Use
Printing machines and NC machine tools

Installation Requirements
According to instruction manual

Operating Temperature Range
As per manual instructions

Shipping
Global.

Frequently Asked Questions

Where does Bosch Rexroth Indramat DKR04.1-W400N-BE56-01-FW motor unit interface with SERCOS bus for multi-axis coordination?

The interface resides within integrated plug-in slots, allowing modular connection to SERCOS nodes, achieving deterministic motor command transmission across distributed machine axes.

What protection mechanisms exist in Bosch Rexroth Indramat DKR04.1-W400N-BE56-01-FW motor drive for overcurrent during high inertia deceleration?

The drive controller integrates IGBT-based current limiting, real-time current sensing, and programmable trip thresholds to protect motor windings from transient overload damage.

How does Bosch Rexroth Indramat DKR04.1-W400N-BE56-01-FW motor unit maintain stable PWM switching at 480V input range?

The controller modulates carrier frequency dynamically, adjusting duty cycles based on bus voltage feedback to ensure uniform motor field excitation without harmonic distortion.

What thermal compensation methods are embedded in Bosch Rexroth Indramat DKR04.1-W400N-BE56-01-FW motor circuitry?

The unit employs thermistor-based monitoring and PWM derating logic, automatically lowering current flow to protect motor insulation and drive electronics under thermal stress.

Does Bosch Rexroth Indramat DKR04.1-W400N-BE56-01-FW motor controller support position feedback via multiple encoder types?

Yes, the unit supports incremental, absolute, and resolver feedback, each interfaced through adaptable plug-in slots, ensuring precise motor positional awareness in industrial processes.

Common Misspellings

DKR041W400NBE5601FW

DKR04 1 W400N BE56 01 FW

dkr04.1-w400n-be56-01-fw

DKR4.1-W400N-BE56-01-FW

Internal Product Review

The DKR series controller DKR04.1-W400N-BE56-01-FW by Bosch Rexroth Indramat is built for precise motor management. It offers digital control, SERCOS communication interface, and air cooling with integrated blower. Its applications span printing machinery and NC machine tools ensuring reliable motor control in industrial automation.