DKR03.1-W100B-BE30-01-FW Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911281452
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.
Internal Product Review
The DKR03.1-W100B-BE30-01-FW is a Bosch Rexroth Indramat digital intelligent AC drive controller with a SERCOS interface and built-in blower cooling. A 71 A continuous current at 4 kHz and digital servo/resolver feedback support precise, stable motion control in demanding automation service. An internal bleeder and approximately 26 kW continuous drive output make this controller a highly capable choice for high-performance installations.
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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.
