KDA 3.1-100-3-DPD-U1
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The KDA 3.1-100-3-DPD-U1 spindle drive has a nominal current of 100 amps, utilizes air-cooled technology, supports a three-phase supply voltage of 400 V AC, and includes DPD feedback for precision. Part of the KDA Spindle Drives series by Bosch Rexroth Indramat, it features panel-mount installation and operates reliably within 0°C to 45°C.
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Product Description:
For precise control in milling, turning, CNC machines, and drilling, Rexroth Indramat makes the KDA 3.1-100-3-DPD-U1 AC main spindle drive. For the purpose of receiving feedback from the spindle motor, the spindle drive has an additional encoder input that is capable of supporting the maximum current of 100A. The drive is from series 3 and works with a 300 V DC bus power.
The KDA 3.1-100-3-DPD-U1 drive has a digital 16-bit parallel input for speed command values and a position command values input. The construction allows for operation in temperatures ranging from 0 degrees Celsius to +45 degrees Celsius. A relative humidity level that is non-condensing and falls between 5% and 95% is required for the KDA spindle drive to function properly. A heatsink fan powered by a 115 V AC supply at 50-60 Hz cools the spindle drive through force. The classification of the climate group is Class F, as stated by DIN 40 040. In accordance with DIN 40 050, the quality of the ingress protection is indicated as IP10. In order to guarantee that the location data is correct, the auxiliary interface is utilized. A mounting height of up to one thousand meters is possible due to the design. The spindle drive can work continuously and control torque precisely in automated machinery.
The KDA 3.1-100-3-DPD-U1 main spindle drive includes an extra port for digital position control. The spindle drive's architecture allows it to work with other components of the system without requiring any additional modifications. The spindle drive belongs to Class 1 design. The cooling system was designed to maintain the function stable. When the KDA drive is set up correctly and meets the requirements, it will always work efficiently.
Frequently Asked Questions about KDA 3.1-100-3-DPD-U1:
Q: Why does KDA 3.1-100-3-DPD-U1 include an auxiliary encoder input for spindle feedback?
A: The auxiliary encoder input allows accurate position feedback. It enables precise motor synchronization and control. It improves torque stability and reduces positioning errors in automated spindle operations.
Q: How does KDA 3.1-100-3-DPD-U1 achieve cooling with a heatsink blower?
A: The heatsink blower forces airflow over the drive. It maintains a temperature within 0°C to 45°C. This ensures rated current stability and avoids overheating during continuous operation.
Q: Does KDA 3.1-100-3-DPD-U1 support digital 16-bit parallel speed commands?
A: Yes, it accepts 16-bit parallel speed commands. This allows precise speed regulation. It integrates with industrial control systems for consistent spindle motion.
Q: Why is the DC bus voltage 300 V in KDA 3.1-100-3-DPD-U1?
A: The 300 V DC bus provides stable power for a 100A-rated current. It supports smooth torque delivery and reduces voltage fluctuations during spindle operation.
Q: How does KDA 3.1-100-3-DPD-U1 maintain performance in 5%–95% humidity?
A: The design tolerates 5%–95% relative humidity, non-condensing. It prevents moisture-related faults. Internal circuits remain stable and reliable across varying humidity levels.
