KDA 2.1-100-3-LYI-U1
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The KDA 2.1-100-3-LYI-U1 spindle drive is manufactured by Bosch Rexroth Indramat. Part of the KDA Spindle Drives series, it features a continuous current of 100A and operates with an input voltage of 3 x 220-230 V AC. The drive is air-cooled internally and includes a SERCOS communication interface. It has a protection class of IP 10/20.
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Product Description:
The KDA 2.1-100-3-LYI-U1 Main Spindle Drive from Bosch Rexroth is designed for precise speed and torque control in CNC systems. It ensures efficient power delivery with a 100 A rated current. It operates reliably under demanding industrial environments.
The KDA 2.1-100-3-LYI-U1 main spindle drive supports a wide speed control range from 0.0005 rpm to high spindle speeds that ensures precise C axis operation with resolution up to 1/360,000 revolutions. The ± 15 V measuring voltage consumption is 160 mA. The unit uses the SERCOS interface to transmit speed command values and supports real time data transmission for accurate feed control, tapping and CNC internal positioning. It provides actual speed, torque and position feedback in real time. The KDA drive maintains its housing temperature by using a heatsink blower unit. The blower works at the rated voltage of 115 VAC. It is designed to operate up to 1000 m elevation above sea level without performance reduction. The maximum operating ambient temperature allowed with reduced nominal data is + 55 °C. The humidity class of this drive enclosure is “F”. It uses an incremental encoder to detect the exact position of the motor’s shaft and to communicate efficiently.
The KDA 2.1-100-3-LYI-U1 main spindle drive has 300 V DC of DC bus voltage requirements. It comes with a mechanical mounting kit (M1-KD) weighing 1.7 kg for easy installation. Its SERCOS interface not only delivers command values but also facilitates synchronization in multi axis systems. The internal structure is designed for precision and durability. This makes it suitable for high speed and high accuracy machining applications. The high resolution spindle positioning is achieved for detailed and repeatable tasks.
Frequently Asked Questions about KDA 2.1-100-3-LYI-U1:
Q: How does the KDA 2.1-100-3-LYI-U1 handle synchronization in multi-axis CNC systems?
A: The KDA 2.1-100-3-LYI-U1 uses a SERCOS interface that not only transmits speed commands but also enables tight multi-axis synchronization. This ensures coordinated motion control for complex machining sequences.
Q: Will the KDA 2.1-100-3-LYI-U1 maintain thermal stability during long machining cycles?
A: The unit uses a forced cooling system via a heatsink blower powered by a 115 V AC supply. This setup ensures consistent thermal stability during high-duty and continuous operations.
Q: Can I expect accurate C-axis spindle positioning with the KDA 2.1-100-3-LYI-U1 under variable speeds?
A: The drive supports spindle resolution up to 1/360,000 revolution and a speed range starting from 0.0005 rpm. This enables precise control across the full spectrum, ideal for C-axis operations.
Q: How does the KDA 2.1-100-3-LYI-U1 behave in high-humidity or elevated conditions?
A: This model supports up to 1000 meters elevation without any performance reduction. It also meets humidity class F, offering stable operation in moisture-prone industrial settings.
Q: What interface and feedback features support integration of the KDA 2.1-100-3-LYI-U1 in modern CNC builds?
A: It provides real-time feedback on speed, torque, and position using its ±15 V measurement input. Additionally, it features an incremental encoder output for accurate motion feedback integration.
