Product Description:

The DKR03.1-W200N-BA06-01-FW is a digitally controlled AC drive controller manufactured by Bosch Rexroth Indramat and supplied within the DKR Drive Controllers series. Classified in the company’s product group as a digital intelligent AC drive controller, this unit governs three-phase servo or spindle motors in automated machinery by modulating power delivered from the plant mains. It accepts reference commands through an analog interface and directs the motor with a rigid DC bus that is built without a brake chopper, thereby omitting an internal bleeder stage.

During continuous duty at a 4 kHz switching frequency the drive can supply 92 A of output current, delivering up to ca. 35 kW to the connected motor. Control electronics are powered from a separate AC 230 V auxiliary supply that tolerates ±10% variation, while the power section is rated for 3xAC 400 … 480 V mains lines with the same tolerance. Thermal management is handled by a Air (built-in blower) cooling arrangement that forces ambient air across the internal heat sinks. The drive’s line series is coded “03,” its design version is 1, and the installed function module carries version 01, ensuring compatibility with matching motion control platforms. A current rating of 200 A on the nameplate relates to protective sizing for upstream fusing and cabling.

For short transients the unit can reach a peak output of 141 A, allowing acceleration of high-inertia loads without derating. Total internal losses appear as 1200 W of heat, a figure that defines cabinet ventilation needs. The assembly weighs 49 kg, so mechanical supports must account for that mass during panel mounting. Position and velocity loops can be closed with Digital servo and resolver feedback, providing flexible integration with Indramat motors. The bleeder-less DC bus conserves energy during deceleration, and its rigid topology aligns with applications that already incorporate external braking resistors.