KDA 2.1-050-3-AYI-W1

The KDA 2.1-050-3-AYI-W1 from Bosch Rexroth Indramat is a high-performance member of the KDA Spindle Drives series, engineered for demanding industrial automation environments. This robust servo drive delivers a continuous output current of 50 A and supports a DC bus voltage of 300 V to accommodate heavy-duty spindle motors. Rated for three-phase input voltages ranging from 380–480 V AC and operating at both 50 Hz and 60 Hz frequencies, it ensures compatibility with global power standards. With an IP20 protection class and a compact footprint weighing approximately 16 kg, this drive balances durability and ease of installation. Its internal air cooling system and panel-mount design make it an ideal solution for enclosed control cabinets.

Technical capabilities of the drive are extensive and precisely specified. The Continuous Output Current of 50 A and Peak Output Current of 60 A permit high torque startup and sustained operation under variable loads. Its Input Voltage range of 3 × 380–480 V AC and dual-frequency support (Frequency 50/60 Hz) ensure stable performance across diverse power systems. The Cooling Method employs an internal air cooling architecture enhanced by a heatsink blower powered from an auxiliary 220 V AC supply. A versatile Communication Interface features both SERCOS digital feedback and an analog Speed Command Value input of ±10 V for precise speed regulation. Enclosure dimensions (Height 445 mm × Width 140 mm × Depth 380 mm) and Mounting style (panel mounting) simplify integration in standard industrial racks. Insulation meets Protection Class IP20 standards, and the drive incorporates Type Servo Drive Controller electronics with a Rated Power capacity typically up to 30 kW.

Operational features and benefits further enhance its appeal for automation engineers. The drive’s Aux. Encoder Input with auxiliary and synchronous inputs supports high-resolution feedback for closed-loop control, improving accuracy and repeatability. An Operating Temperature Range of 0 °C to 45 °C ensures reliable operation in typical shop-floor environments, while Class F insulation withstands elevated thermal loads. Forced internal airflow guarantees thermal stability during extended duty cycles, minimizing downtime and maintenance. By combining a lightweight design (16 kg), efficient thermal management, and high current capability, the drive maximizes system uptime and extends the life of connected spindles and motors.

Seamless integration into existing control architectures is facilitated by its SERCOS interface and analog input channels, allowing plug-and-play connectivity with leading motion controllers. The compact panel-mount form factor and standardized enclosure dimensions simplify cabinet layout and wiring harness design. Ideal applications include CNC machining centers, milling spindles, grinding machines, and other high-speed metalworking systems requiring precise torque control and rapid acceleration. Engineers can leverage its advanced feedback options and robust electrical specifications to optimize throughput and quality in demanding industrial automation projects.