Product Description:

The DKR02.1-W300N-BE01-00 is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. It draws energy from a three-phase mains supply, rectifies it to a rigid DC bus, and feeds servo motors without a brake chopper, so excess regenerative energy must be handled externally. Acting as the power stage in multi-axis machines, the unit exchanges position and velocity data through resolver or digital servo feedback and executes motion commands issued by higher-level automation systems.

At a 4 kHz switching frequency, the drive can supply a continuous armature current of 141 A, enabling motors to produce sustained torque under closed-loop control. Under the same switching conditions, its continuous power capability reaches 55 kW, which is the thermal limit for long-term operation. Short-duration load spikes are supported by a peak current reserve of 212 A, giving the axis headroom for rapid acceleration or shock loading. Mains connection is specified for 3xAC 400 … 480 V ±10%, while internal logic and blower circuits are stabilized by a separate AC 230 V ±10% control supply. These ratings suit standard factory power systems and support stable operation across the controller’s intended range.

Thermal management relies on a built-in air blower that removes switching and conduction heat, a necessary measure because total dissipation can reach 1800 W during continuous full-load service. Real-time communication is provided by the SERCOS interface, so drive parameters, current limits, and diagnostic data stay synchronized with the machine PLC. Even with the integrated blower, the housing weighs 104 kg, which affects cabinet support requirements during installation. The controller is part of line series 02 with design version 1 and function module 01-00.