KDA 2.1-150-3-AYD-U1
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The KDA 2.1-150-3-AYD-U1 spindle drive features a maximum output current of 150 amps, operates at an input voltage of 3 x 400 V AC, supports resolver and encoder feedback, and includes an integrated brake chopper. Part of the KDA Spindle Drives series by Bosch Rexroth Indramat, it is air cooled and weighs approximately 15 kilograms.
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Product Description:
Bosch Rexroth Indramat provides the KDA 2.1-150-3-AYD-U1 Spindle drive for industrial automation application. The drive is designed for reliability in demanding industrial environments. It provides efficient power conversion and stable drive operation. The system provides accurate spindle control essential for continuous automation tasks.
The KDA 2.1-150-3-AYD-U1 spindle drive has a rated current of 50 A. The continuous current rating allows stable operation under extended load without performance degradation. The DC bus voltage is 300 V this supply level ensures constant drive torque delivery and voltage stability across changing speeds. The bus supply type is a dedicated DC bus. The configuration reduces conversion losses and provides efficient energy transfer from supply to spindle. The speed command input accepts ±10 V analog. This input format provides direct conformity with analog controllers which allows accurate speed modulation in closed-loop systems. The position command interface is 16-bit parallel digital which supports accurate positional referencing during spindle transitions and reduces deviation in high-speed machining. The auxiliary encoder input offers additional feedback channels. This type of integration improves synchronization between spindle and external axes during coordinated motion. Auxiliary and synchronous inputs allow flexible encoder adaptation which supports redundancy and increases precision in multi-axis alignment.
The KDA 2.1-150-3-AYD-U1 drive includes a blower AC supply rated at 115 VAC. The independent blower feed provides stable cooling even when the main drive is under fluctuating loads. The cooling method uses forced air through a heatsink blower. This maintains thermal stability across long duty cycles and prevents excess heating of power modules. The auxiliary synchronous input channel improves real-time correction in dynamic operations. The parallel position interface supports easy integration with digital control networks. The precision alignment capability supports demanding automation where spindle accuracy is critical.
Frequently Asked Questions about KDA 2.1-150-3-AYD-U1:
Q: What happens if the blower in this spindle drive becomes damaged?
A: A blower failure may cause overheating of the power modules. The drive should be stopped immediately, and cooling components inspected or replaced to prevent further damage.
Q: How is the KDA 2.1-150-3-AYD-U1 spindle drive applied in industrial automation?
A: It is used in high-performance machining systems where precise spindle control and stable torque output are required for continuous operation.
Q: How does the ±10 V analog speed input improve control performance?
A: It enables direct connection to analog controllers, allowing accurate spindle speed modulation and consistent regulation in closed-loop drive systems.
Q: What safety measures are included in the Bosch Rexroth Indramat KDA spindle drive?
A: The drive integrates precise position command and auxiliary encoder inputs, ensuring reliable synchronization and reducing risk of errors during high-speed machining.
Q: How does the drive maintain thermal stability during extended duty cycles?
A: An axial blower with 115 VAC supply forces air through the heatsink, dispersing heat effectively and protecting internal modules from thermal stress.
