DKR02.1-W300N-BE73-01-FW

DKR02.1-W300N-BE73-01-FW is a Bosch Rexroth Indramat unit in the DKR Drive Controllers series. It belongs to the digital intelligent AC drive controller product group and has line series 02, design version 1, and function module version 01. Its current rating is 300. The SERCOS command interface supports real-time communication with compatible motion-control systems, while digital servo and resolver feedback provide motor position and speed data for closed-loop control.

The controller operates from a rated three-phase AC power voltage of 400–480 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 provides approximately 55 kW of continuous power and 141 A of continuous current. Its peak current is 212 A for short-duration high-load operation. The rigid DC bus has no bleeder or brake chopper, so the controller does not internally dissipate regenerative energy through a braking resistor. A built-in air blower cools the unit, which has a total heat dissipation of 1,800 W. The controller weighs approximately 104 kg.