Product Description:

The KDS 1.1-050-300-W1-220 is a servo drive module produced by Bosch Rexroth Indramat for the KDS Servo Drive Modules series. It interfaces with a shared DC bus and supplies phase-controlled power to synchronous and induction motors used in automated machinery. Within an automation rack, it converts the 300 V link voltage into regulated output currents, allowing coordinated positioning, velocity, and torque control for multiple axes in production lines, packaging equipment, and material-handling systems.

The module delivers a continuous output of 15 kW while operating on a DC link of 300 VDC. Its continuous, rated, and peak phase currents are all specified at 50 A, so associated cabling and fusing can be standardized across steady-state and transient operating modes. Power devices are cooled by forced ventilation, and the drive’s electronics dissipate 85 W of internal loss that must be removed by cabinet airflow. A 24 V logic rail draws 950 mA for control functions, and the same value appears as the load current on the +24 V supply line. Measurement electronics require 140 mA from +15 V and 50 mA from -15 V rails, maintaining signal integrity for current and voltage feedback. The design supports mounting on subassemblies where the mechanical structure adds 1.7 kg and the fan cassette contributes another 4.2 kg to thermal management.

During dynamic deceleration, the drive expels 220 W of external loss through the bleeder path, so enclosure ducting must accommodate that heat. The primary unit weighs 14.4 kg, keeping panel loading moderate even when several axes share a panel. Installation is permitted up to 1000 m above sea level without current derating, and its enclosure has an IP10 ingress rating that restricts exposure to conductive debris. The enclosure layout must support the cooling airflow, bleeder heat, and auxiliary supply demand during operation.