Product Description:

Bosch Rexroth Indramat’s DKR05.2-W500N-BE12-01-NNNN-FW belongs to the DKR Drive Controllers series and serves as a digital intelligent AC drive controller for high-capacity industrial axes. It forms the power and control interface between a plant’s central PLC and a three-phase servomotor, converting numerical motion commands into controlled current and voltage profiles. By coordinating acceleration, deceleration, and steady-state operation, the unit supports precise positioning and continuous-duty processes in machining centers, printing lines, and material-handling equipment.

The controller communicates over the SERCOS interface, so drive parameters and diagnostic data travel on a fiber-optic ring with deterministic timing. Its nominal output stage is rated for 500 A, allowing it to energize large motors without external paralleling. At 400 V mains, that current corresponds to 165 kW of output power, which is suitable for heavy spindle or extruder loads. Thermal management relies on built-in air blower cooling; the integrated fan moves cabinet air across the heat sink and eliminates the need for ducted external chillers. Rotor position can be processed through digital servo or resolver feedback, enabling compatibility with modern absolute encoders as well as legacy two-channel resolvers. The rigid DC bus operates without a brake chopper, so kinetic energy must be dissipated in the connected mechanics or fed back through the mains supply.

An internal loss of 6.2 kW is removed by the cooling path and sets minimum airflow requirements for the enclosure. The steel frame is finished in a pebble gray coating that matches standard control-cabinet schemes, and access is secured by a 7 mm three-square lock on the front service door. With a shipping mass of 550 kg, the unit requires floor-mounted installation and appropriate lifting equipment.