DKR03.1-W100B-BE30-01-FW Bosch Rexroth Indramat
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MPN: R911281452
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The Bosch Rexroth Indramat DKR03.1-W100B-BE30-01-FW is a digital intelligent AC drive controller in the DKR Drive Controllers series with a weight of approximately 49 kilograms. It features a SERCOS command interface, handles a continuous drive power of about 26 kW at 4 kHz, and uses air cooling via a built-in blower. The unit supports digital servo and resolver feedback and includes an internal bleeder with a brake resistor rated at 1 kW continuous power and 150 kWs maximum braking energy.
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Product Description:
The DKR03.1-W100B-BE30-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat and supplied within the DKR Drive Controllers series. The unit belongs to a high-power product group and is intended to energize and regulate large synchronous and induction motors in automated machinery. It integrates an internal bleeder so regenerated energy is dissipated through the built-in brake resistor, allowing rapid deceleration without external braking components. A SERCOS interface provides deterministic command exchange with upper-level motion controllers and PLCs. Its control structure is intended for coordinated motion tasks where the drive must follow networked setpoints and return status data to the host system.
The logic circuitry is fed by a control input of AC 230 V, ±10%, while the power section accepts a mains connection of 3 x AC 400 to 480 V, ±10%. At a 4 kHz switching frequency, the converter delivers a continuous output current of 71 A; this corresponds to a sustained shaft power of 26 kW when it is paired with compatible motors. Thermal management uses a built-in air blower, which forces air across the heat sink and power semiconductors to keep internal temperatures within allowable limits. Digital servo and resolver feedback channels allow the controller to work with a wide range of Bosch Rexroth motors, and the 100 A current rating is used when selecting protective fusing and cabling. This combination supports both motor commutation and closed-loop speed or position control from the same controller platform.
The internal brake resistor can absorb 1 kW continuously and store up to 150 kWs of energy during short braking events, which helps prevent DC-bus overvoltage when heavy loads are stopped. Aggregate power losses appear as 900 W of heat, so the installation must remove that heat from the cabinet during operation. With the blower, bleeder, and power modules installed, the controller weighs 49 kg. It is part of line series 03, design version 1, and function module version 01. Cabinet ventilation should be arranged so warm exhaust air does not accumulate around adjacent modules.
Frequently Asked Questions about DKR03.1-W100B-BE30-01-FW:
Q: What bleeder configuration does the DKR03.1-W100B-BE30-01-FW use?
A: The DKR03.1-W100B-BE30-01-FW features an internal bleeder configuration for handling excess energy.
Q: What command interface is used by the DKR03.1-W100B-BE30-01-FW controller?
A: This drive controller utilizes the SERCOS interface for its command signal communication.
Q: What is the rated power supply voltage for the DKR03.1-W100B-BE30-01-FW?
A: The rated power voltage for this drive is 3-phase AC 400 to 480 V with a ±10% tolerance.
Q: What types of motor feedback does the DKR03.1-W100B-BE30-01-FW support?
A: This model supports both digital servo and resolver feedback for motor position monitoring.
Q: What cooling method is employed by the DKR03.1-W100B-BE30-01-FW drive controller?
A: The cooling system of this controller relies on air with a built-in blower for effective heat management.
