DKR02.1-W300N-BE39-01-FW

DKR02.1-W300N-BE39-01-FW is a Bosch Rexroth Indramat digital intelligent AC drive controller in the DKR Drive Controllers series. It belongs to line series 02 and uses design version 1. The current-rating code is 300. A SERCOS command interface provides real-time communication with compatible automation controls, while digital servo and resolver feedback support motor position and speed control.

The controller operates from a rated three-phase AC power voltage of 400 to 480 V with a tolerance of ±10%. Its control circuits require 230 V AC with a tolerance of ±10%. At a 4 kHz switching frequency, the drive supplies 141 A of continuous current and approximately 55 kW of continuous power. Peak drive current is 212 A, supporting short periods of increased motor demand.

The unit has no bleeder or brake chopper and uses a rigid DC bus. Cooling is provided by air from a built-in blower, which removes operating heat from the controller. Total heat dissipation is 1,800 W, indicating the thermal load that the installation must accommodate. The controller weighs approximately 104 kg.