Product Description:

The DKR02.1-W200Z-BE24-01-FW is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat for the DKR Drive Controllers series. It connects directly to high-power servo or main spindle motors, providing closed-loop speed and torque regulation for machining centers, presses, and handling systems. Within an automation cell, the unit acts as the central power stage and communication node, sending commands from the motion controller over SERCOS and returning motor feedback through integrated evaluation circuits. This arrangement supports stable motor control during rapid speed changes, continuous cutting loads, and other demanding axis movements.

Rated power reaches the drive through a three-phase input of 3 x AC 400 to 480 V, ±10%, while its internal logic and blower use a separate AC 230 V, ±10% control supply. The separate control feed keeps the electronics and cooling system supplied independently of the main motor power input. At a switching frequency of 4 kHz, the power section can deliver a continuous phase current of 120 A, which corresponds to a sustained shaft load of 47 kW. During short acceleration intervals, the current can rise to 141 A without exceeding thermal limits. Command data travels over the SERCOS interface, and the controller accepts both digital servo feedback and resolver feedback, allowing mixed-generation motors to operate from the same cabinet.

Cooling is provided by a built-in air blower that forces air through the heat sink and removes up to 1600 W of losses generated by the IGBTs and onboard logic. This forced-air path helps maintain consistent thermal conditions during high-duty operation and repeated load changes. The assembly weighs 104 kg, which allows installation on standard cabinet rails without additional bracing. The current rating figure of 200 marks the power module size, and the product is part of line 02 with design version 1 and function module version 01.