Product Description:

The DKC04.3-200-7-FW-S101 is a multi-axis drive controller produced by Bosch Rexroth Indramat and assigned to the DKC Drive Controllers series. It manages the power stage and motion feedback between a common DC bus and servo actuators, enabling coordinated speed and torque regulation in automated production lines, conveyor systems, and machine tools. By receiving commands from upper-level PLCs, the unit issues timed current pulses that translate digital setpoints into mechanical movement. Its role is to convert control commands into regulated motor current while monitoring the feedback needed for closed-loop motion. This makes it suitable for synchronized axis applications where stable response is required during acceleration, deceleration, and speed changes.

The controller links to a shared supply with a DC-bus nominal voltage of 700 V. At rated motor load, the device can deliver a continuous output of 200 A, while the protective input stage is sized for a maximum line current of 38 A to accommodate regenerative peaks. Power dissipation reaches 960 W at rated current, so the cabinet must remove that heat to keep the semiconductor section within its operating range. Reliable operation is permitted up to an ambient temperature of 45 °C, and higher temperatures require output derating. These electrical and thermal values are important when the controller is installed in compact cabinets with multiple active axes.

The enclosure weighs 19.5 kg, which affects panel support and handling during installation. The unit belongs to the EcoDrive product type, so it fits that control platform and its matching operating structure. The controller is marked as Design 3, indicating the third design revision for this version of the power section. It also uses Interface Option 04, which supports connection to common command sources such as SERCOS or analog control signals. This interface broadens compatibility for machines that rely on either fiber-optic motion networking or conventional analog references.