KDA 2.1-150-3-AY0-U1

The Bosch Rexroth Indramat KDA 2.1-150-3-AY0-U1 drive from the KDA Spindle Drives series by Bosch Rexroth Indramat is a high-performance main spindle drive designed for demanding industrial automation tasks. This Type KDA 2.1-150-3-AY0-U1 unit operates on a 3-phase 400/480 V AC (+/-10%) input voltage with a DC Bus Voltage of 300 V and delivers a Rated Output Current of 150 Arms (continuous current of 90 A). It employs an integrated Internal cooling system featuring a LE4 blower for forced air cooling and is certified for operation within an ambient Temperature Range of 0°C to +45°C. The drive includes a Control Supply Voltage of 24 V DC and a Field Supply Voltage of 230 V AC, with overall Dimensions (w x h x d) of approx. 450 mm x 445 mm x 270 mm in a robust enclosure. This single-axis controller (Number Of Axis: Single Axis (2.1-series controller)) weighs approx. 40 kg and is identified as product KDA for easy integration and maintenance.

The drive’s dynamic performance is driven by an ultra-wide speed range from 0.0005 RPM to its maximum rated rotational speed, enabling precise low-speed machining and high-speed operations. High‐performance C-axis functionality supports a rotational resolution of ≤ 1/360,000 revolutions, ensuring exceptional contouring and indexing accuracy. Communication is facilitated via SERCOS and analog/digital I/O, while feedback is provided through Resolver/Indramat standard feedback and an Aux. Encoder Input with Auxiliary and Synchronous Inputs for advanced closed-loop control. The drive accepts a Speed Command Value of Analog +/-10 V, and is compatible with a broad range of motors including Indramat 1MB, 2AD, 2DB, MHD, and MKD series. Rapid response and precise torque control are further supported by the carefully regulated internal cooling blower and high bus voltage stability.

Built for reliability in industrial environments, the KDA 2.1-150-3-AY0-U1 features a Protection Class of IP10 (EN 60529) and is rated for installation up to 1000 m altitude without derating. Its housing and electrical design meet stringent humidity class F requirements for stable operation under varying environmental conditions. The integrated cooling system with LE4 blower balances thermal regulation and system robustness, extending component life. The drive’s compact footprint and standardized dimensions simplify panel integration, while the single-axis architecture streamlines connectivity with CNC systems. Ideal for machining centers, grinders, and precision manufacturing equipment, this drive delivers the performance and reliability required for modern production lines.