KDA 3.2-050-3-AY0-U1

The Bosch Rexroth Indramat KDA 3.2-050-3-AY0-U1 drive is a high-performance member of the KDA Spindle Drives series, designed to deliver precise spindle control in demanding industrial automation environments. This 3-axis unit features a bus voltage of 320 V DC nominal and a rated current of 50 A, supporting input power up to 32 kVA for sustained heavy-duty operation. The compact dimensions of 540 x 310 x 250 mm house an advanced KDA 3.2 Digital AC Drive core, ensuring seamless integration into existing CNC and machining center frames. With a control interface compatible with SERCOS, the drive provides deterministic digital communication and high-speed data exchange. Overall weight is approx. 28 kg, facilitating straightforward installation and mechanical support.

Performance is optimized through a peak output current of 75 A, enabling rapid torque response across a broad speed range. The unit accepts a 3 x 400 V AC ±10% voltage supply at 50/60 Hz frequency, accommodating global mains conditions without derating. Precision spindle speed adjustments are managed via an analog ±10 V speed command value, while feedback is handled through a configurable incremental encoder or resolver input. Internal forced air cooling with an integrated fan maintains optimal thermal characteristics under continuous load. Auxiliary and synchronous inputs further enhance functional versatility, supporting advanced spindle orientation and C-axis interpolation.

Reliability is anchored by a robust IP20 protection class enclosure that safeguards power electronics against inadvertent contact and large foreign objects. The drive’s structural design incorporates an heatsink blower powered from a 115 V AC supply, ensuring sustained operation within industrial temperature ranges. Configurable aux. encoder input channels allow seamless interfacing with both incremental encoders and resolvers, facilitating high-precision feedback loops. Combined with the compact 540 x 310 x 250 mm footprint and manageable weight, this drive integrates effortlessly into modular automation platforms. Ideal for CNC machine tools, milling centers, and advanced manufacturing systems, the KDA 3.2-050-3-AY0-U1 delivers consistent, high-dynamic stiffness and precision positioning for critical spindle applications.