DKR03.1-W100B-BE56-01-FW Bosch Rexroth Indramat
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MPN: R911281168
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The Bosch Rexroth Indramat DKR03.1-W100B-BE56-01-FW is a digital intelligent AC drive controller from the DKR Drive Controllers series. It offers a continuous drive power of approximately 26 kW at 4 kHz and uses a built-in blower for air cooling. The unit operates with a rated power voltage of 3xAC 400 to 480 V and weighs about 49 kilograms.
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Product Description:
The DKR03.1-W100B-BE56-01-FW is an AC drive controller produced by Bosch Rexroth Indramat and assigned to the DKR Drive Controllers series. It regulates torque, velocity, and position for servo motors in automated machinery, and it combines power conversion with motion control in a single unit. The controller also includes internal braking components, which support controlled deceleration of connected axes during normal machine operation. Command data is exchanged through the SERCOS interface, which provides deterministic fiber-optic communication with higher-level motion controllers. This arrangement allows the drive to respond accurately to coordinated motion commands in multi-axis production equipment.
The power stage operates at a switching frequency of 4 kHz and delivers a continuous output current of 71 A. At that operating point, the inverter can supply about 26 kW of continuous output power, while the integrated brake resistor can dissipate up to 1 kW. The unit requires a mains supply of 3x AC 400–480 V ±10%, and normal operation releases 900 W of heat that must be removed by cabinet airflow. Cooling is provided by a built-in air blower, which helps keep the power section within its thermal range during sustained operation. This current level suits servo axes that need steady torque output in multi-axis equipment.
For deceleration duty, the braking circuit can absorb up to 150 kWs before reaching its thermal limit. The control electronics are powered separately by AC 230 V ±10%, allowing communication and parameter access even when the main contactor is open. The controller accepts digital servo feedback and resolver feedback without additional option cards, which broadens compatibility with different motor feedback systems. This allows the unit to work with different motor configurations while keeping the interface arrangement simple.
Frequently Asked Questions about DKR03.1-W100B-BE56-01-FW:
Q: Does the DKR03.1-W100B-BE56-01-FW drive controller include an internal bleeder?
A: The DKR03.1-W100B-BE56-01-FW is equipped with an internal bleeder.
Q: What type of command interface does the DKR03.1-W100B-BE56-01-FW support?
A: This model utilizes a SERCOS interface for command communication.
Q: What is the continuous power output of the DKR03.1-W100B-BE56-01-FW at 4 kHz?
A: The drive's continuous power output at 4 kHz is approximately 26 kW.
Q: How is the DKR03.1-W100B-BE56-01-FW drive controller cooled?
A: The recommended cooling method is air using a built-in blower.
Q: What is the rated power supply voltage range for the DKR03.1-W100B-BE56-01-FW?
A: This controller accepts a rated power supply voltage of 3-phase AC 400 to 480 V, ±10%.
