KDA 3.1-100-3-AQI-U1
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The KDA 3.1-100-3-AQI-U1 from Bosch Rexroth Indramat is part of the KDA Spindle Drives series and features natural convection cooling. It has a rated current of 100A, three phases, and supports a control voltage of 24V DC. The drive is panel mounted, weighs 4.8 kg, and complies with IEC 60947-4-3 standards.
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Product Description:
The Bosch Rexroth Indramat’s KDA 3.1-100-3-AQI-U1 Spindle Drive features high-strength electrical and mechanical specifications to cater to accurate spindle operations. It is powered by a 300 VDC DC link voltage, which provides a stable supply of energy for demanding machining operations.
The KDA 3.1-100-3-AQI-U1 spindle drive has a nominal current rating of 100 A, guaranteeing high-quality current capacity, and to operate continuous heavy loads. For controller integration, this spindle drive has an NC interface via 37-pin X2 connecting clamps for secure and efficient communication of the system. The velocity reference signal of this drive is treated as an analog ±10V input, which ensures accurate and stable transfer of motion commands. To further improve positioning precision, this drive has a secondary encoder input with auxiliary support for a 1V sinusoidal encoder. This provides accurate tracking of spindle velocity and alignment. There is also an auxiliary port for incremental encoder feedback/output, enabling real-time monitoring of operating parameters for enhanced machine synchronization. The KDA 3.1-100-3-AQI-U1 spindle drive features a built-in heatsink blower module for safe operating temperatures under heavy loads.
The blower of this KDA 3.1-100-3-AQI-U1 spindle drive is powered by a 115V AC supply at 50–60Hz to guarantee compatibility with general industrial power systems. This drive’s own weight of 4.2 kg guarantees structural stability and optimal installation balance. This spindle drive prescribes a tightening torque of 5 Nm at the motor shaft connection, which avoids loosening during dynamic spindle running. The thermal resistance is a critical aspect of this drive, and it is able to function reliably to a maximum ambient temperature of +55 °C. As far as electrical safety is concerned, this drive is in compliance with protection category IP10, as per DIN 40 050, adhering to industrial requirements.
Frequently Asked Questions about KDA 3.1-100-3-AQI-U1:
Q: How does the auxiliary encoder input improve accuracy in the KDA 3.1-100-3-AQI-U1?
A: The auxiliary encoder input provides sinusoidal feedback for precise alignment. This ensures smoother spindle motion in high-precision machining tasks.
Q: Why is an analog ±10V velocity reference signal important?
A: It ensures stable transfer of speed commands from control systems. This allows accurate spindle regulation without signal distortion.
Q: How does the 37-pin X2 clamp connection help system integration?
A: It provides a secure and standardized interface with NC controllers. This reduces wiring complexity and ensures consistent signal transmission.
Q: What advantage does the 115V/50–60Hz blower supply offer?
A: It allows flexible connection to common industrial AC sources. This ensures reliable blower operation across varied regions and setups.
Q: How does the 4.2 kg blower unit benefit the spindle drive?
A: Its weight balances the mounting and reduces vibration during operation. This contributes to stable heat dissipation and durability.
