Product Description:

Bosch Rexroth Indramat’s DKR02.1-W300N-BA32-01-FW belongs to the DKR Drive Controllers series and serves as a digital intelligent AC drive controller for high-power servo axes in industrial automation. The unit links an Indramat CNC or motion PLC to synchronous or induction motors, converting torque and velocity commands into regulated three-phase output. A line filter, power section, and microprocessor regulator share one housing, which simplifies cabinet layout and supports coordinated multi-axis motion. This integrated arrangement reduces the need for separate drive-side components inside the cabinet. It is intended for applications that need controlled motor response during continuous production and dynamic positioning.

A built-in analog interface receives ±10 V speed or torque commands, and motor position is returned through digital servo or resolver feedback for closed-loop control. The analog command path lets the controller follow external setpoints directly from higher-level motion hardware. When supplied from a three-phase mains source of 400–480 V, the controller provides continuous output power of about 55 kW while maintaining a drive output current of 141 A at a 4 kHz switching frequency. Internal logic and I/O circuits use a separate AC 230 V control supply, which helps keep command processing isolated from disturbances in the main power section. Heat produced by the IGBT bridge is removed by a built-in blower, and total thermal loss is 1800 W, so enclosure ventilation must be sized for that heat load.

Transient demands are handled by a peak phase current of 212 A, which provides added headroom during acceleration and short shock loads. The power section uses a rigid DC bus and does not include a brake chopper, so applications with substantial regenerated energy require external regeneration equipment. The unit also carries a drive current rating of 300 A, which suits heavy-duty servo motors used in presses or gantry axes. Its mass is 104 kg, and the unit has Design Version 1, Function Module Version 01, and Line Series 02. Those version codes identify the product build used for this model.