KDA 3.1-100-3-DPI-U1

The Bosch Rexroth Indramat KDA 3.1-100-3-DPI-U1 from the KDA Spindle Drives series by Bosch Rexroth Indramat delivers precision performance with a Rated Current of 100 A and a DC Bus Voltage of 300 V. This main spindle drive utilizes a Digital 16-Bit Parallel Speed Command Value interface for exact velocity control, ensuring smooth acceleration across broad speed ranges. High stiffness and accurate positioning features are built into the drive’s robust design, making it ideal for demanding spindle applications. The unit’s thermal management is handled by a forced cooled heatsink blower, optimizing heat dissipation during continuous operation.

Reliability is enhanced through a dedicated AC Supply Source for Heatsink Blower at 115 VAC, guaranteeing consistent cooling under heavy loads. Feedback is managed via an integrated Aux. Encoder Input for spindle or second motor signals, while the Aux. Interface provides an incremental encoder output for streamlined control loops. This KDA product, identified as Design 1 within the Series 3 family, is engineered for rapid commissioning and seamless integration into CNC and automated machining centers. Internal fault monitoring and protective functions safeguard both motor and drive electronics, reducing unplanned downtime.

Compact yet rugged, the KDA 3.1-100-3-DPI-U1 maintains peak power density without compromising on serviceability. Its modular architecture allows maintenance crews to replace blower assemblies and encoder modules quickly, minimizing machine stoppage. This spindle drive is the centerpiece of precision machining environments where reliability and high dynamic response are paramount.