Product Description:

The DKR02.1-W200N-BE26-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat in the DKR Drive Controllers series. It regulates large three-phase servo and spindle motors in automated machining cells, material-handling lines, and similar equipment. By combining power conversion, motion control, and real-time communication within one module, the unit supplies adjustable torque and speed while coordinating axis behavior with the plant control system. This arrangement supports stable closed-loop operation during acceleration, steady running, and controlled deceleration on demanding industrial axes.

The power section operates from a three-phase supply of 3x AC 400 to 480 V ±10%, whereas its logic and blower use an auxiliary feed of AC 230 V ±10%. At a 4 kHz switching frequency, the inverter sustains 120 A of output current and provides about 47 kW of continuous mechanical power at the motor shaft. Short demand peaks are covered by a maximum drive current of 141 A, which helps the axis handle brief overload conditions without immediate current limiting. Model code W200N indicates a 200 A current class, and the integrated air path uses a built-in blower to force cooling air across the heat sink so power components remain within their operating temperature range.

During operation, the controller releases up to 1600 W of heat, so unobstructed airflow is required around the cooling path. The unit weighs 104 kg, which is relevant for panel support and mounting hardware. Motion commands and diagnostic data are exchanged over the fiber-optic SERCOS interface, and position loops close through digital servo or resolver feedback channels connected at the front panel. Because the drive uses a rigid DC bus and has no internal brake chopper, regenerated energy must be routed to an external resistor or a common bus link. The product is part of Line 02 and uses Version 1 with Function Module Version 01.