Product Description:

The DKR02.1-W200N-BA24-01-FW drive controller is produced by Bosch Rexroth Indramat as part of the DKR Drive Controllers series. It is line series 02, design version 1, and function module version 01. The unit is a digital intelligent AC drive controller for high-power servo motors in automated machining centers, presses, and gantry axes where precise torque and speed regulation are required. By combining power electronics, feedback processing, and control functions in a single housing, it supplies regulated three-phase output that follows changing load demands while remaining compatible with resolver and digital servo feedback devices.

At a switching frequency of 4 kHz, the drive can deliver a continuous current of 120 A and produce 47 kW of output when it is matched with suitable motors. The power stage accepts 400–480 V AC ±10%, while the internal logic and fans run from an AC 230 V ±10% control supply. Losses reach 1600 W, and heat is removed by air cooling with a built-in blower that pulls ambient air through the heat sink. This cooling method supports sustained operation without requiring an external heat exchanger, and the 200 code identifies the current rating class used for high-torque motor groups.

For intermittent transients, the current ceiling rises to 141 A, which provides extra torque during acceleration or rapid position corrections. Axis commands reach the controller over an analog interface, and position feedback can come from digital servo encoders or resolver transmitters, which helps the unit work with legacy motor types as well as newer feedback systems. Despite its output capability, the assembly weighs 104 kg, which supports stable panel installation with standard lifting equipment. The DC bus does not include a braking chopper, so excess regenerative energy must be handled by external resistors or a common DC link when the application involves frequent deceleration.