KDA 2.1-150-3-DYS-U1

The Bosch Rexroth Indramat KDA 2.1-150-3-DYS-U1 spindle drive is a member of the KDA Spindle Drives series designed for high-precision industrial automation. This drive delivers a rated current of 150 A across three phases, providing reliable power for demanding spindle workloads. It implements Digital/Servo Control logic to ensure precise torque regulation and rapid dynamic response. Manufactured by Bosch Rexroth Indramat, the unit is optimized for panel mounting and seamless integration within control cabinets.

The technical specifications of the KDA 2.1-150-3-DYS-U1 emphasize robust electrical and interface capabilities. It supports a DC bus voltage of 300 V and accepts a Speed Command Value: Digital 16-Bit Parallel input for high-resolution speed control. Communication is handled via the proprietary U1 interface, enabling compatibility with manufacturer-specific command protocols. Feedback is achieved through Digital Yaskawa Servo (DYS) signals, and an Aux. Encoder Input port provides auxiliary and synchronous encoder connections. The drive’s enclosure meets IP20 protection ratings, and its air-cooled design maintains internal temperatures without external coolant.

Operational features reinforce sustained performance in industrial environments. The drive maintains stable operation within an ambient temperature range of 0°C to 45°C and is suited for panel-mounted installations to simplify cabinet layouts. The Control Type: Digital/Servo Control algorithm ensures precise spindle positioning and rapid acceleration profiles. With three phases of power delivery, it balances load currents to reduce thermal stress, and its air-cooled mechanism dissipates heat effectively during extended duty cycles. The integrated Feedback Type: Digital Yaskawa Servo (DYS) interface refines closed-loop accuracy, enhancing repeatability in multi-axis machining.

System integration is expedited through standardized interfaces and rugged mechanical design. The panel-mount form factor complies with control cabinet configurations, while the U1 interface supports real-time communication with higher-level motion controllers. Bosch Rexroth Indramat recommends pairing the KDA 2.1-150-3-DYS-U1 drive with frameless spindle motors and C-axis configurations for direct-drive applications in CNC machining centers. This drive is ideally suited for industrial automation tasks in metalworking, precision milling, and high-speed drilling operations where reliability and precise torque control are paramount.