KDA 3.3-100-3-DQI-U1

The KDA 3.3-100-3-DQI-U1 drive from Bosch Rexroth Indramat in the KDA Spindle Drives series offers a precision-engineered solution for main spindle control, combining robust construction with advanced electronic interfaces. Engineered for high dynamics, it features a Digital 16-Bit Parallel Speed Command Value for ultra-fine velocity regulation and a Rated Current of 100 A to meet demanding torque requirements. The drive’s Product designation “KDA” and Design version “3” reflect its evolution within Bosch Rexroth’s modular architecture, ensuring continuity across machine generations. Its compact footprint supports direct cabinet mounting, simplifying retrofit and new installations.

Equipped with a DC Bus Voltage of 300 V, the unit utilizes a Forced Cooled by Heatsink Blower system powered by a dedicated AC Supply Source for Heatsink Blower at 115 VAC, guaranteeing stable junction temperatures even under peak loads. An Aux. Encoder Input accommodates a 1 V sinusoidal feedback signal for closed-loop position correction, while the Aux. Interface provides an incremental encoder output for secondary axis synchronisation. The internal thermal management and overcurrent protections are factory-tuned, and the drive accepts real-time setpoints via its high-speed parallel bus, minimizing latency in high-bandwidth motion loops. Compliance with standard industrial control voltages and interfaces streamlines integration with CNC systems and PLCs.

Designed for seamless integration into complex machine tools, the KDA 3.3-100-3-DQI-U1 ensures exceptional reliability through forced-air heat removal and proven electronic components. Its flexible encoder inputs and parallel speed command architecture deliver low-latency regulation, reducing position overshoot and improving throughput. Ideal for spindle applications in milling, turning, and drilling centers, the drive enhances machine availability and precision by simplifying commissioning and maintenance.