DKR03.1-W100N-BE09-01-FW Bosch Rexroth Indramat
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MPN: R911292541
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The Bosch Rexroth Indramat DKR03.1-W100N-BE09-01-FW is a digital intelligent AC drive controller from the DKR Drive Controllers series, with a weight of approximately 49 kg. It features a SERCOS command interface, supports motor feedback by digital servo and resolver systems, and delivers a continuous drive power of about 26 kW at 4 kHz. The unit is cooled by a built-in air blower and operates at a rated power voltage of 3xAC 400 to 480 V, ±10%.
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Product Description:
The DKR03.1-W100N-BE09-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat as part of the DKR Drive Controllers series. It governs three-phase servo and spindle motors in automated machining cells, material-handling lines, and other motion platforms that require coordinated velocity and torque regulation. The unit uses drive-internal function modules in Version 01 and belongs to Line 03, which keeps the electrical layout consistent within this product group. A rigid DC bus is provided without a brake chopper, so braking energy must be handled by external hardware.
The controller exchanges setpoint and status data over a SERCOS interface, allowing synchronized multi-axis control on fiber-optic rings. At a PWM frequency of 4 kHz, it delivers a continuous phase current of 71 A, translating to about 26 kW of mechanical output when paired with compatible motors. Drive logic and internal fans operate from an AC 230 V auxiliary supply with a permitted variation of ±10%. Thermal management is handled by a built-in air blower, which draws cabinet air through the heat sink to control semiconductor temperature. The power section is fed from a 3 x AC 400 to 480 V mains source with a permitted tolerance of ±10%, matching common plant distribution systems.
Total waste heat is rated at 900 W, so the enclosure ventilation system must remove that heat to prevent derating. The listed shipping mass of 49 kg means lifting support may be needed during handling. Motor position loops can close on digital servo and resolver feedback, which allows the drive to operate with both resolver-based motors and higher-resolution encoder systems. Peak current capability matches the continuous current rating, which keeps current sizing straightforward for the connected system.
