KDA 3.1-150-3-AYD-U1
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The KDA 3.1-150-3-AYD-U1 is a digital servo drive with a rated current of 150 A and internal cooling. Manufactured by Bosch Rexroth Indramat, it belongs to the KDA Spindle Drives series and features a SERCOS communication interface. This 14 kg drive operates at 3 x 230/400 V AC and has a protection class of IP20.
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Product Description:
The KDA 3.1-150-3-AYD-U1 Main Spindle Drive for industrial automation operations. Bosch Rexroth is the manufacturer of KDA drive and recommends it to be used with the motors from 1MB and 2AD series. The housing carries a protection classification of IP10 as per DIN 40 050. It provides basic safeguarding against large solid objects.
The KDA 3.1-150-3-AYD-U1 spindle drive assembly has a mass of approximately 17.4 kilograms, excluding the weight of mounting 1.7 kg and blower unit 4.2 kg. It provides an output current rating of 150 A with a continuous load capacity of 90 A and operates from a 300-volt DC link. A heatsink blower unit is installed in this drive for forced convection and it works at 115 VAC voltage with 50/60 Hz of supply voltage frequency. The recommended temperature range for this KDA drive is +5 °C to +45 °C. The KDA 3.1-150-3-AYD-U1 spindle drive maintains operation up to +55 °C when performance is derated accordingly. The permissible installation altitude for full performance is up to 1000 meters above mean sea level. The drive must be grounded before operation and it is designed to be installed in the vertical position. When operated with compatible feedback modules, it features C-axis function along with spindle orientation. It is designed for seamless integration into modular drive systems alongside supply modules and feed control units. This maintains INDRAMAT’s standardized electrical connection layout for consistent system assembly.
The KDA 3.1-150-3-AYD-U1 spindle drive accepts an analog ±10-volt velocity reference input. It includes an auxiliary encoder interface for secondary motor or spindle feedback to enhance speed and positioning precision. A digital 16-bit parallel interface is available for receiving position command values. This enables integration with advanced CNC or automation controllers.
Frequently Asked Questions about KDA 3.1-150-3-AYD-U1:
Q: How does the Bosch Rexroth KDA 3.1-150-3-AYD-U1 maintain C-axis precision?
A: The Bosch Rexroth KDA 3.1-150-3-AYD-U1 spindle drive uses encoder synchronization for orientation accuracy. It also stabilizes motion during fine contouring cycles in machining.
Q: What integration factors affect Bosch Rexroth KDA 3.1-150-3-AYD-U1 feedback performance?
A: The Bosch Rexroth KDA 3.1-150-3-AYD-U1 spindle drive benefits from short, shielded feedback cabling to reduce EMI. It also improves position loop stability in high-speed spindles.
Q: How does the Bosch Rexroth KDA 3.1-150-3-AYD-U1 operate in elevated temperatures?
A: The Bosch Rexroth KDA 3.1-150-3-AYD-U1 spindle drive derates above +45 C to protect components. It also requires increased cooling airflow for extended operation.
Q: What role does the Bosch Rexroth KDA 3.1-150-3-AYD-U1 analog input serve?
A: The Bosch Rexroth KDA 3.1-150-3-AYD-U1 spindle drive’s ±10 V input enables precise velocity modulation. It also supports smooth transitions between speed setpoints during machining.
Q: How does the Bosch Rexroth KDA 3.1-150-3-AYD-U1 interface with modular drive systems?
A: The Bosch Rexroth KDA 3.1-150-3-AYD-U1 spindle drive follows INDRAMAT’s standardized connections for easy pairing. It also ensures electrical compatibility with feed and supply modules.
