Product Description:

The DKR02.1-W300Z-BE79-01-FW is a drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. It operates as the power and control stage between a DC supply unit and large synchronous or asynchronous motors used in presses, gantry axes, and heavy machine-tool spindles. By modulating three-phase output in response to motion commands, the unit supplies the torque and speed profiles required for precise industrial automation tasks. In typical machine systems, it regulates motor current so heavy axes can accelerate, hold speed, and decelerate with controlled response under changing loads.

Communication with higher-level control systems is handled through the SERCOS interface, an optical bus that transfers setpoints and diagnostics with deterministic timing. Thermal regulation relies on a built-in air blower that moves cooling air across internal heat sinks without external ducting. The power stage is rated for a continuous phase current of 300 A, enabling the controller to drive high-torque motors on demanding, high-inertia axes. For feedback, it processes digital servo and resolver feedback, allowing the same unit to work with either encoder technology. The unit is built as Design Version 1, which keeps the hardware layout consistent for compatible installations. This combination of current capacity, cooling, and feedback support makes the controller suitable for large motion systems that require stable closed-loop performance.

The unit uses Function numeric version 01 for its control functions. It belongs to Line 02, which shares the same mechanical dimensions and accessory options as other second-generation DKR models. The shared form factor helps keep neighboring modules aligned in a common cabinet. It also keeps connector locations consistent across compatible units in the same line, which supports orderly system layout when several drive controllers are installed together.