R911285649 (DKR04.1-W300E-BE37-01-FW)

Name: R911285649 (DKR04.1-W300E-BE37-01-FW)
Brand: Indramat Drives
SKU: DKR04.1-W300E-BE37-01-FW
Price: 311.00 USD
Availability: InStock

DKR Drive Controllers

Front Left

In-Stock, Ships 3-5 Days

Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

Phone

Part Number

+Add a message

Message

Request a Replacement

Request a Repair

Quote Both

Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

Phone:
1-888-551-3082

Email:
sales@indramat-usa.com

The Bosch Rexroth MPN R911285649 (DKR04.1-W300E-BE37-01-FW) is a drive controller featuring a SERCOS interface for real-time communication between drive, motor, and I/O devices. It is designed to operate with a 3-phase AC supply at 50 to 60 Hz and a power voltage range up to 380 V. The unit supports a continuous power output of 93 kW at 210 A with a 4 kHz switching frequency, or 66 kW at 150 A with an 8 kHz switching frequency. It utilizes an external bleeder resistor and incorporates a brake chopper with a rigid DC bus. The controller includes a DKR04.1-W300E-B basic unit, five slots for plug-in modules, and supports digital servo and resolver feedback for motor control. Cooling is managed via an integrated air blower, maintaining protection class regardless of air source.

Technical Specifications

Interface
SERCOS

Cooling system
Built-in blower

Protection Category
IP20

Power source
3-phase AC

System Frequency
50 to 60 Hz

Power voltage
0 to 380

Max Frequency
800 Hz/1600 Hz for 4 kHz/8 kHz drive

Continuous power (4 kHz)
93 kW

Continuous power (8 kHz)
66 kHz

Continuous current (4 kHz)
210 A

Continuous current (8 kHz)
150 A

Regenerated power
66 kW

Heat Dissipation
2500W

Slots
5

Firmware Module
ESM02.3

Weight
150 kg

Accessories kit weight
1.7 kg

Motor feedback
Digital servo and resolve

Frequently Asked Questions

What cooling precautions are needed when installing the DKR04.1-W300E-BE37-01-FW?

It uses a built-in blower, so adequate airflow within the cabinet is required. Restricting air circulation can reduce efficiency and shorten service life.

How does the external bleeder with brake chopper affect system integration?

It allows excess regenerative energy to be safely dissipated. This prevents overvoltage on the DC bus during braking cycles.

Can resolver feedback be mixed with digital servo feedback in this drive?

Yes, both feedback types are supported, enabling flexibility across motor technologies. The control logic prioritizes the configured primary input.

Why is a rigid DC bus design significant in this controller?

It ensures stable voltage levels during rapid load changes. This improves servo responsiveness and prevents voltage ripple from affecting precision.

What advantages does the SERCOS interface provide in multi-axis setups?

It standardizes communication and synchronization across multiple drives. This reduces wiring complexity and ensures precise timing coordination.

Common Misspellings

DKR041W300EBE3701FW

DKR04 1 W300E BE37 01 FW

dkr04.1-w300e-be37-01-fw

DKR4.1-W300E-BE37-01-FW

Internal Product Review

The Bosch Rexroth Indramat DKR04.1-W300E-BE37-01-FW is a drive controller for precision motion control. It delivers ~300 A nominal current, uses a built-in blower for air cooling, and accepts digital servo and resolver feedback via a SERCOS interface. Its housing is rated IP20, requiring placement inside a ventilated control enclosure.