R911294113 (DKR02.1-W300B-BA03-01-FW)

Name: R911294113 (DKR02.1-W300B-BA03-01-FW)
Brand: Indramat Drives
SKU: DKR02.1-W300B-BA03-01-FW
Price: 964.00 USD
Availability: InStock

DKR Drive Controllers

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The Bosch Rexroth drive controller MPN R911294113 (DKR02.1-W300B-BA03-01-FW) is designed for advanced control of AC main spindle, frameless spindle, and linear motors, supporting a continuous power output between 10kW and 93kW. This unit features a design code of 1, operates at a system frequency of 50Hz to 60Hz, and provides a rated current of 300A. It includes a built-in blower and heatsink for air cooling, an emergency shutdown system, a mains contactor, and integrated brake resistor for handling regenerative energy. Communication uses an analog interface, with digital servo and resolver feedback supported. The controller includes multiple expansion slots, with the fifth reserved for firmware modules.

Technical Specifications

Product Type
Drive Controller

Design Code
1

Power Output Range
10kW to 93kW

Speed Range
Wide, steady power, high level of control

Integrated Systems
Emergency stop shutdown system, mains contactor

Additional Features
Blower and Heatsink

Rated Current
300A

Modular Slots
5 (5th reserved for software module)

Name Plates
3

System Frequency
50Hz to 60Hz

Interface
Analog

Additional Energy Features
Brake Resistor

Delivery
Shipped through vendor network

Frequently Asked Questions

What cooling setup is required when installing the DKR02.1-W300B-BA03-01-FW?

It uses an integrated blower, so no external cooling circuit is needed. However, sufficient airflow clearance must be ensured in the cabinet to avoid overheating.

Can this unit handle both resolver and digital feedback devices simultaneously?

It can be configured to support either type, depending on the motor feedback requirements. The choice impacts positioning accuracy and compatibility with specific motors.

What is the role of the bleeder circuit in this controller?

The bleeder dissipates regenerated energy from braking into heat, protecting the DC bus from overvoltage. This makes it suitable for applications with frequent starts and stops.

Does the DKR02.1-W300B-BA03-01-FW require external braking resistors?

No external resistors are needed since the internal bleeder manages regenerative power. For extremely high dynamic loads, external options may still be considered.

What considerations should be made when mounting this controller in an enclosure?

Proper spacing for air circulation is critical since it relies on forced internal air cooling. Dust filtration should also be considered to protect the blower and electronics.

Common Misspellings

DKR021W300BBA0301FW

DKR02 1 W300B BA03 01 FW

dkr02.1-w300b-ba03-01-fw

DKR2.1-W300B-BA03-01-FW

Internal Product Review

The DKR02.1-W300B-BA03-01-FW is a drive controller in Bosch Rexroth Indramat DKR series. It supports analog command input, includes air cooling via a built-in blower, and offers both digital servo and resolver feedback. It is commonly used in industrial automation for controlling AC main spindles, frameless spindles, and linear motors.