Product Description:

The DKR03.1-W100N-BE12-01-FW is a drive controller produced by Bosch Rexroth Indramat and belongs to the DKR Drive Controllers series. It supplies controlled three-phase power to synchronous servomotors, enabling coordinated motion sequences in metal-cutting machines, gantries, and assembly cells. The unit forms the power and control interface between the higher-level CNC or PLC and the motor, translating digital commands into regulated output. It is used where accurate motor control must follow programmed paths, synchronized feeds, and coordinated axis movement.

The primary communication path is the SERCOS interface, which passes cyclic setpoints and status words over fiber optics for deterministic update times between the drive and the higher-level motion control. Position verification is handled through digital servo and resolver feedback, allowing the controller to close the speed and position loops without external converters. Thermal energy is removed by a built-in air blower that pushes cooling air through the heatsink, so no external ducting is required. The power section is tied to a rigid DC bus, and the design includes no bleeder and no brake chopper. Regenerated energy must therefore be absorbed by the common DC link or by braking hardware elsewhere in the system.

The device is in design version 1, which indicates its established mechanical layout and connector arrangement. It uses function numeric version 01 and belongs to line series 03. These identifiers correspond to the control structure used by the drive and help distinguish it within the product line without changing its basic operating role. The integrated blower continues moving air through the unit when the cabinet door is closed, which supports stable thermal operation during high current demand and sustained motion cycles.