Product Description:

Bosch Rexroth Indramat designs the DKR02.1-W300Z-BE05-01-FW, a digital intelligent AC drive controller in the DKR Drive Controllers series. Acting as a central power module for multi-axis servo systems, it converts three-phase mains power into regulated outputs that govern high-torque motors in presses, machining centers, and handling equipment where coordinated acceleration and deceleration are required. The unit communicates with upper-level PLCs through its SERCOS interface, supporting real-time motion control across coordinated axes.

The drive uses a rated power supply of 3xAC 400 – 480 V ± 10%, while the auxiliary electronics are powered by a control voltage of AC 230 V ± 10%. At a 4 kHz switching frequency, it delivers a continuous current of 141 A, which corresponds to approximately 55 kW of sustained mechanical output when paired with suitable motors. Momentary load surges are covered by a peak current capacity of 212 A, allowing rapid acceleration without derating. Current Rating 300 in the type code corresponds to the power section size used for this amperage range. Internal monitoring coordinates with current sensors to maintain set values across changing loads and to stabilize response during rapid torque changes.

Thermal management relies on a built-in air blower; at full load, the power electronics release 1800 W of heat that is expelled directly from the housing. The controller is part of Line Series 02, is Design Version 1, and uses Function Module Version 01 for adaptable I/O and safety logic. Total mass is approximately 104 kg, so cabinet mounting must support that static load. Motor feedback channels accept digital servo and resolver feedback for closed-loop precision, and low command latency over the fiber-optic link supports stable position and speed regulation on large axes.