Product Description:

The DKR03.1-W100N-BE23-01-FW is a drive controller manufactured by Bosch Rexroth Indramat and supplied in the DKR Drive Controllers series. In multi-axis machining centers, presses, or handling robots, this controller coordinates power conversion and closed-loop regulation so that connected servo motors follow programmed motion profiles with high dynamic accuracy. It is intended for applications that require stable torque, speed, and position control across coordinated machine axes. This arrangement allows the drive to support synchronized axis movement during rapid positioning, contouring, and repeated start-stop cycles.

Communication to the supervisory CNC or PLC is handled through the SERCOS interface, a deterministic fiber-optic bus that carries setpoints, status words, and diagnostic data in real time. This link supports synchronized command updates and operating-state exchange during motion. Internal thermal management relies on a built-in air blower, and the integrated fan moves cabinet air across the heat sink to keep semiconductor temperatures within permissible limits without external ducting. The power section has no bleeder resistor, so excess regenerative energy is not burned off internally and must be absorbed elsewhere in the DC link. Position and velocity loops can be closed with digital servo feedback, allowing the controller to work with compatible encoder-equipped motors. The unit is built in Design version 1, which uses this component layout and connector style.

The unit uses Function numeric version 01, which matches the current feature set and parameter structure. It belongs to Line 03, a grouping that uses the same gate-drive circuitry and DC-bus ratings across several power classes. Within the energy path, a rigid DC bus links multiple drives so regenerated power can be shared rather than dissipated. Shared bus energy is useful on machines with alternating motoring and braking axes, such as gantries or transfer systems. Separate channels process resolver feedback signals, so the same controller can also operate resolver-based axes without additional interface cards.