DKR03.1-W200N-BT29-01-FW Bosch Rexroth Indramat
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MPN: R911293872
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The Bosch Rexroth Indramat DKR03.1-W200N-BT29-01-FW is part of the DKR Drive Controllers series and has a continuous power output of approximately 35 kW at 4 kHz. This digital intelligent AC drive controller operates with a peak current of 141 A, is cooled by a built-in blower, and weighs about 49 kg. It uses a SERCOS command interface and supports digital servo as well as resolver motor feedback.
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Product Description:
The DKR03.1-W200N-BT29-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. As a modular unit within this series, it regulates three-phase servomotors in automated plant cells, packaging lines, and machining centers where precise torque and velocity loops are required. The product belongs to the Digital Intelligent AC Drive Controller group and operates with a rigid DC bus that contains no bleeder or brake chopper, a configuration suited to installations that dissipate regenerated energy through shared DC links or external hardware.
This drive exchanges setpoints and diagnostics through a SERCOS interface, allowing deterministic fiber-optic communication with multi-axis motion controls. Under a 4 kHz switching frequency, the power stage delivers a continuous current of 92 A, translating to roughly 35 kW of shaft power for connected motors. Auxiliary electronics are supplied from a single-phase control voltage of AC 230 V ±10%, isolating logic circuits from the main power bus. Thermal management relies on a built-in air blower; the internal fan directs cooling airflow across heat-sink fins so the unit can be panel-mounted without external ducting. Digital servo and resolver feedback channels are supported for closed-loop operation, and a current rating code of 200 identifies the dimensioning of the output transistors and bus bars.
The drive’s transient capability peaks at 141 A, giving headroom for acceleration or shock loads when commanded by the motion controller. Mains input must be a balanced supply of 3x AC 400–480 V ±10%, matching the insulation spacing and filter network inside the power module. During full-load operation, the assembly releases about 1200 W of heat, a figure that guides cabinet ventilation design. With a transport mass of 49 kg, the unit needs secure mechanical support during installation. The controller is design version 1, function module version 01, and line series 03, matching compatible option cards used in the platform.
