Product Description:

The KDS 1.1-050-300-W0-115 is a servo-drive module produced by Bosch Rexroth Indramat for the KDS Servo Drive Modules series. Acting as a DC-link amplifier, it receives energy from a 300 V bus and shapes three-phase output currents for precise motor control in multi-axis automation racks. This Model 1 unit relies on natural convection rather than an internal blower, so it is intended for cabinet locations where unforced ambient airflow is available. The arrangement suits modular racks in which several axes share a common supply section and use separate amplifier stages for coordinated motion.

Under rated conditions, the drive delivers a continuous phase current of 35 A and can supply up to 15 kW of mechanical power while the link circuit is maintained at 300 V DC with a tolerance of ±15%. That combination of bus voltage and current capacity supports controlled torque delivery during acceleration, steady running, and direction changes. External heat sinks must remove about 150 W of loss, while another 70 W is dissipated inside the housing. If an auxiliary fan is used, its terminals accept 115 V AC at 50 to 60 Hz. The control electronics draw 950 mA from the machine's +24 V supply, and the module limits both rated and peak output current to 50 A through its protection logic.

The module is intended for ambient temperatures from +5 to +45 °C, and a maximum operating temperature of 55 °C is listed when relative humidity remains in Class F. Installation altitude must not exceed 1000 m, and the enclosure has an IP 10 rating that provides finger protection without liquid sealing. Because the enclosure is intended for panel installation, protection against liquids must be provided by the surrounding cabinet rather than by the module itself. The aluminum chassis weighs 14.1 kg, and Insulation Category C applies to the internal clearances. Mechanical interfaces follow the series 1 layout and allow side-by-side stacking without blocking airflow.