Product Description:

The DKC06.3-200-7-FW is an AC drive controller produced by Bosch Rexroth Indramat for the DKC Drive Controllers series. Installed between a rectifier supply and synchronous servo motors, it closes the current and velocity loops that keep automated axes on target during positioning, conveying, or winding tasks. By combining pulse-width modulation with integrated diagnostics, the device enables repeatable motion in industrial automation cells without external gating hardware. This arrangement helps the drive respond quickly to speed changes and load variations while maintaining stable closed-loop motor control.

The controller operates on a DC link stabilized at 700 V, giving the power stage sufficient headroom for rapid torque transients. A continuous output capacity of 200 A sets the thermal limit of the IGBT bridge and indicates the largest motor that can be coupled without derating. During line-side disturbances or acceleration peaks, the converter may draw up to 38 A from the mains, a figure used when sizing upstream protection and cabling. Internal semiconductor and bus losses reach 960 W at rated current, so that heat must be removed by cabinet airflow or heat-sink mounting to avoid temperature-induced shutdowns. The housing weighs 19.5 kg, which helps keep mounting manageable while still meeting vibration requirements for machine frames.

Reliable service is specified up to 45 °C ambient, so enclosure ventilation must keep the drive within that limit when the listed heat dissipation is present. The unit is Design 3, indicating the third electrical revision. Communication and parameter loading are handled through Interface Option 06, which provides the serial and SERCOS channels used in decentralized motion networks. This interface supports both local setup tasks and networked motion control from higher-level systems. The controller is an EcoDrive and works with matching power supplies, resolvers, and drive controls in the product line.