Product Description:

The DKR02.1-W300N-BE30-01-FW is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat and assigned to the DKR Drive Controllers series. It belongs to Line 02, has design version 1, and incorporates function module version 01. The unit regulates high-power servo axes by converting the plant’s three-phase supply into controlled output currents while exchanging real-time motion data with CNC or PLC systems. In closed-loop operation, it works with compatible motors and feedback devices to maintain commanded speed, torque, and position as machine loads change.

The drive communicates through the SERCOS interface, enabling synchronous fiber-optic command traffic as well as digital servo and resolver feedback processing. With a 4 kHz switching frequency, it delivers a continuous phase current of 141 A, which supports about 55 kW of controllable shaft power when paired with compatible motors. Internal logic and I/O are supported by a control-voltage input of AC 230 V ±10 %. Cooling is managed by a built-in air blower, and the rigid DC-bus design omits a brake chopper, so braking energy must be dissipated externally or returned to the mains. The unit is in the 300 A current class and is intended for large servo applications with substantial power demand.

During rapid acceleration or regenerative peaks, the controller can supply 212 A to the motor windings while holding its rated power voltage window of 3xAC 400–480 V ±10 %. Thermal losses can reach 1800 W, so airflow around the chassis must remain unobstructed to protect the power section. With a mass of 104 kg, the housing requires solid cabinet mounting and suitable lifting equipment during installation. Because the unit does not include a brake chopper, applications that need dynamic braking must use an external resistor or return energy to the mains.