KDA 3.3-100-3-APD-U1

The KDA 3.3-100-3-APD-U1, Bosch Rexroth Indramat, KDA Spindle Drives controller delivers high-performance spindle regulation in a compact, robust package. It features a Rated Voltage of 300 V with a Current Rated of 100 A and a Continous Current of 70 A, ensuring ample drive capacity for demanding CNC operations. The unit’s Series 3 architecture and Design 3 topology optimize dynamic response and torque control. A forced-cooling scheme powered via an attached blower maintains thermal stability under sustained loads.

The drive accepts an Analog +/- 10V Speed Command Value, granting precise speed setpoint transitions and seamless integration with standard CNC control loops. Its Aux. Encoder Input With for Spindle or Second Motor FeedbackAux. Interface1 supports direct connection of a spindle or secondary motor encoder for closed-loop position and speed feedback. The Rated Connection Voltage for attached Blower AC 50–60 specification powers the integrated cooling blower without requiring an external supply converter. Native conformity to Bosch Rexroth’s parameterization and protection protocols ensures rapid commissioning and dependable operation.

Designed for straightforward retrofits or new machine builds, the KDA 3.3-100-3-APD-U1 offers plug-and-play encoder interfacing and analog command compatibility for most CNC controllers. Its forced-air heat dissipation and industrial-grade components provide exceptional reliability in continuous-production environments. With minimal maintenance requirements and Bosch Rexroth Indramat’s proven spindle-drive lineage, this controller increases uptime and delivers precise, repeatable performance across machining centers, C-axis operations, and high-speed rotary tables.