The Bosch Rexroth Indramat KDA 2.1-150-3-AP0-U1-115 spindle drive controller is a premium member of the KDA Spindle Drives series, designed specifically for high-stiffness main spindle applications in industrial machining centers. Manufactured by Bosch Rexroth Indramat, this drive features a Current Rated capacity of 150 A and a Continuous Current rating of 90 A to ensure sustained performance under varying loads. It operates on a Rated Voltage of 300 V and supports a Rated Connection Voltage for attached Blower of AC 50 60 to maintain stable power delivery. Its primary function is to deliver precise speed and torque control for spindle motors in metalworking and machining processes, optimizing machine rigidity and positioning accuracy.
In terms of technical specifications, the KDA 2.1-150-3-AP0-U1-115 utilizes an analog Speed Command Value interface of +/- 10V to facilitate seamless integration with CNC controllers and PLCs. The controller incorporates a forced cooling system driven by a heatsink blower, ensuring efficient thermal management even under continuous high-current operation. An Aux. Encoder Input is provided for feedback from the spindle or a secondary motor, enhancing closed-loop control and positioning precision. The drive’s robust design supports direct DC bus operation at 300 V, allowing for rapid acceleration and deceleration profiles while maintaining low electrical noise.
Additional features of this spindle drive include compatibility with standard industrial encoder signals and drive communication networks, facilitating straightforward integration into existing automation architectures. The forced-air cooling arrangement contributes to system durability, reducing thermal stress on power electronics and extending service life in demanding production environments. The analog speed command and auxiliary feedback options promote high control accuracy, ensuring efficient energy utilization and reduced cycle times. By adhering strictly to Bosch Rexroth Indramat’s quality standards, the KDA 2.1-150-3-AP0-U1-115 drive controller delivers reliable, high-performance operation that enhances productivity and operational uptime in heavy-duty machining and spindle drive applications.
Continous Current
90 A
Current Rated
150 A
Rated Connection Voltage for attached Blower
AC 50…60
Rated Voltage
300 V
Product
KDA
Series
2
Design
1
Speed Command Value
Analog +/- 10V
Aux. Encoder Input
With for Spindle or Second Motor FeedbackAux. Interface1