KDA 3.1-050-3-AYD-U1
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The Bosch Rexroth Indramat KDA 3.1-050-3-AYD-U1, part of the KDA Spindle Drives series, is a digital servo amplifier designed for precision control. It operates with an input voltage of 3 x 380-480 V AC, features fan cooling, and has an IP20 protection class. The unit weighs approximately 17 kilograms.
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Product Description:
This spindle drives KDA 3.1-050-3-AYD-U1 offers a rated power of 5.0 kW and delivers sufficient torque for mid‑range spindle tasks. It accepts an input voltage of 3 × 380‑480 V AC and it is compatible with common industrial power grids. The motor’s output voltage of 3 × 0‑480 V AC provides full modulation range for variable‐speed spindle control. Motor’s full performance is guaranteed up to 45 °C ambient temperature and an elevation of 1,000 m. Above these, available output decreases steadily.
Its rated current of 8.5 A supports stable motor drive under different loads. The unit accommodates resolver or encoder feedback type inputs which sharpen positional accuracy. In addition, its cooling method employs fan-cooled designs which maintain safe junction temperatures. It offers an optional SERCOS communication interface, allowing a high‑speed data exchange. It holds an IP20 protection class which protects against solid‑particle ingress. The model operates within an operating temperature span of 0 to 45 °C which matches standard workshop environments. Its control type of digital servo amplifier refines torque delivery with minimal overshoot. Rated for environments with up to 70% average relative humidity in the most humid settings, as per DIN 40 040 class F.
Its dimensions of 485 mm H × 140 mm W × 382 mm D fit common rack layouts which ease retrofits. This Indramat’s drive mass of around 17 kg balances build robustness with manageable handling. Further, it enables CNC milling operations that demand spindle rigidity and surface finish quality. The module serves precision grinding spindles where thermal stability and torque consistency matter and it also well-suited for fast-paced drilling applications. And it maintains an internal DC bus voltage of 300 V for stable inverter feed. With an AC supply of 115 VAC, it integrates a heatsink blower which drives forced‑air cooling elements.
Frequently Asked Questions about KDA 3.1-050-3-AYD-U1:
Q: Which feedback systems can interface with the KDA 3.1-050-3-AYD-U1?
A: It accepts both resolver and encoder signals for closed‑loop position monitoring. This dual‑option support enhances rotational accuracy and minimizes positioning errors in precise machining cycles.
Q: What cooling approach does the KDA 3.1-050-3-AYD-U1 employ to manage heat?
A: The drive’s fan‑cooled design forces airflow across internal components to dissipate thermal buildup.
Q: What control scheme does the KDA 3.1-050-3-AYD-U1 implement?
A: It uses a digital servo amplifier approach to decouple torque and speed loops. This scheme sharpens response to command changes and reduces control lag in dynamic machining tasks.
Q: What are the external dimensions of the KDA 3.1-050-3-AYD-U1?
A: The dimensions measures 485 mm in height, 140 mm in width, and 382 mm in depth. It allows installation in common drive racks without custom modifications.
Q: How heavy is the KDA 3.1-050-3-AYD-U1 spindle unit?
A: Its mass of approximately 17 kg balances structural robustness with manageable service handling. This weight assists stability during high‑speed motor operation.
