KDA 3.3-100-3-DPD-U1

The Bosch Rexroth Indramat KDA 3.3-100-3-DPD-U1 drive controller from the KDA Spindle Drives series combines precision motion control with high reliability to meet the demands of modern machine tools and automation systems. It delivers a Rated Voltage of 300 V and supports a Current Rated capacity of 100 A, with a Continuous Current rating of 70 A for sustained operation under heavy loads. Engineered around an advanced digital control core, it accommodates both spindle and multi-axis servo functions with minimal latency. This controller represents a significant advancement in the integration of rotary axis drives and high-speed positioning.

The KDA 3.3-100-3-DPD-U1 accepts a Speed Command Value via a Digital 16-Bit Parallel interface, ensuring ultra-fine velocity resolution across its entire speed range. An Aux. Encoder Input (for spindle or second motor feedback, Aux. Interface1) enables closed-loop control with rotor position accuracy down to 1/360,000th of a revolution. The system is identified as Design 3 in Series 3, reflecting its third-generation hardware improvements and firmware features. A dedicated blower connection rated at AC 50–60 V maintains optimal cooling, while the sealed heat sink and low-temperature thermal management system rapidly dissipate waste heat to prevent performance degradation. Built-in diagnostics monitor current draw and thermal status, simplifying preventive maintenance.

Seamless integration with Bosch Rexroth frameless and asynchronous motors allows rapid deployment in spindle axis positioning and high-precision servo applications. The dependable internal position control loop and robust thermal design ensure consistent performance even under continuous heavy-duty cycles. Ideal for machining centers, rotary transfer lines, and automated assembly stations, the KDA 3.3-100-3-DPD-U1 drive controller delivers the reliability and accuracy required for next-generation industrial automation.