KDA 3.1-050-3-AQ0-W1
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The KDA 3.1-050-3-AQ0-W1 is a forced air-cooled spindle drive with a rated continuous current of 50 A. Manufactured by Bosch Rexroth Indramat as part of their KDA Spindle Drives, it operates with a 3-phase input voltage of 380-460 V AC. Additional features include a resolver feedback type and analog/digital communication interfaces.
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Product Description:
The KDA 3.1-050-3-AQ0-W1 Main Spindle Drive is a modular drive solution by Bosch Rexroth Indramat. It is part of the 3.1 product series with a design version labeled as 3. This spindle drive is developed to provide exact motion control in industrial automation applications. It operates with a DC link voltage of 300 VDC to power its functions efficiently.
The KDA 3.1-050-3-AQ0-W1 spindle drive delivers a continuous current output of 35 A. It can provide a peak current of 50 A for demanding load conditions. The control power requirements include a +24V supply drawing a current of 1.2 A. It also has a ±15V supply at 160 mA. The speed command signals are processed via an analog ±10V input. A secondary encoder input is supported with a 1V sinusoidal encoder. The cooling for the KDA 3.1-050-3-AQ0-W1 spindle drive is managed using forced air through a heatsink-mounted fan. The cooling fan is powered by a 220V AC supply and is identified as model LE4-220V. The cooling system maintains an airflow rate of approximately 32 liters per second with an air velocity of 3 to 4 meters per second. The complete unit weighs 16.6 kg, with the mounting kit contributing an additional 1.7 kg. The fan unit itself weighs 4.2 kg.
The allowed humidity level of the KDA 3.1-050-3-AQ0-W1 spindle drive is up to 70% relative humidity, as long as no condensation forms. It is compliant with DIN 40 040 standards. The product holds an IP10 protection rating under DIN 40 050. The spindle drive must be installed in a vertical position. It can be installed at altitudes reaching 1000 meters above sea level. The operational temperature range is between +5°C and +45°C under standard conditions. The drive can tolerate ambient temperatures up to +55°C with derated output.
Frequently Asked Questions about KDA 3.1-050-3-AQ0-W1:
Q: Why is vertical installation required for the KDA 3.1-050-3-AQ0-W1 spindle drive?
A: The KDA 3.1-050-3-AQ0-W1 spindle drive must be installed vertically to ensure proper airflow over the heatsink. This prevents overheating and extends component life.
Q: What happens if the KDA 3.1-050-3-AQ0-W1 spindle drive exceeds 45°C?
A: If the KDA 3.1-050-3-AQ0-W1 spindle drive exceeds 45°C, its output is automatically derated. This reduces thermal stress and protects internal electronics.
Q: Why does the KDA 3.1-050-3-AQ0-W1 spindle drive use an IP10 protection rating?
A: The KDA 3.1-050-3-AQ0-W1 spindle drive uses IP10 protection as it is designed for closed cabinet environments. This prioritizes airflow efficiency over dust or water sealing.
Q: Why does the KDA 3.1-050-3-AQ0-W1 spindle drive support ±15V at 160 mA?
A: The KDA 3.1-050-3-AQ0-W1 spindle drive includes ±15V at 160 mA to power analog sensors and encoders. This ensures accurate signal processing and stable sensor operation.
Q: Why is the KDA 3.1-050-3-AQ0-W1 spindle drive rated for 50 A peak current?
A: The KDA 3.1-050-3-AQ0-W1 spindle drive is rated for 50 A peak to handle sudden load surges. This supports high acceleration and quick tool changes in machines.
