Product Description:

The KDS 1.1-050-300-W1-115/S102 is a servo-drive module produced by Bosch Rexroth Indramat within the KDS Servo Drive Modules series. Designed for installation in multi-axis cabinets, the unit converts DC link energy into controlled three-phase output for industrial servo motors, enabling coordinated motion profiles, positioning, and speed regulation in automated lines, packaging equipment, and material-handling stations. It operates as a dedicated power stage that interfaces with a higher-level controller through the shared DC bus used across the drive rack.

At the power stage, the module delivers a continuous output of 50 A, allowing stable torque production during prolonged duty cycles. The internal heat sinks are cleared by forced ventilation, and airflow is maintained by a cabinet-mounted fan supplied with AC 115 V, 50…60 Hz. The device draws its energy from a shared link circuit that is nominally kept at 300 V DC (±15%), and it can return regenerated energy to that bus during dynamic braking events. A maximum mechanical load of 15 kW can be driven, which suits compatible motor frame sizes and application inertia levels. This unit is design model 1 within the drive family, and its rated current matches the continuous figure. During rapid accelerations, the peak current equals the continuous rating, so associated cabling and protective devices can be sized for a single current envelope without step changes.

The permissible ambient temperature is +5 – +45 °C, supporting installation in standard control rooms without air conditioning. Cooling air is routed through the separate LE4 external fan module, so the drive can remain wired while the blower is replaced. The housing has an IP 10 protection rating, which indicates open vent slots and requires installation inside an enclosure while allowing airflow through the fan channel. A shipping mass of 14.4 kg supports handling during cabinet assembly and limits load on DIN rails or shelf brackets.