KDA 3.1-100-3-AYS-U1
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The KDA 3.1-100-3-AYS-U1 is a spindle drive manufactured by Bosch Rexroth Indramat. A part of the KDA Spindle Drives series, it supports resolver and encoder feedback types. The drive has a nominal voltage range from 380 to 480 V AC. It weighs approximately 18 kg and uses internal/external fan cooling.
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Product Description:
The Bosch Rexroth Indramat’s KDA 3.1-100-3-AYS-U1 Drive features an RS-232C serial auxiliary interface for connection with supervisory systems and diagnostic equipment. This spindle drive comes with a weight of 4.2 kg for the blower unit, which is compact and yet strong enough to handle heavy-duty operations in industrial settings.
This spindle drive utilizes a forced-air cooling method with a fan to provide thermal equilibrium. The heatsink fan of the KDA 3.1-100-3-AYS-U1 drive runs on an AC power input of 115V at 50–60 Hz to provide stable dissipation of heat. For mounting, this spindle drive allows vertical mounting with grounding bolts located at the top for proper alignment and safe grounding of the system. This spindle drive has an IP 10 electrical protection category as specified by DIN 40 050 standards. This protects against incidental contact and maintains conformity with industrial safety standards. The electrical design of this drive accommodates a nominal current rating of 100 A with a consistent supply, necessary for stable spindle operation. The KDA 3.1-100-3-AYS-U1 drive, simultaneously, runs on a DC link voltage of 300 V to achieve compatibility with standard power ratings of spindles.
The velocity reference input of this drive operates through an analog ±10V signal, allowing precise speed control and accuracy in spindle control operations. From the viewpoint of environmental durability, this KDA 3.1-100-3-AYS-U1 drive functions stably under a maximum ambient temperature of +55 °C, enabling uninterrupted operation in high-temperature environments. Furthermore, its interfacing with numerical control systems is managed through X2 connecting clamps with a 37-pin arrangement, which provides safe and flexible connections in CNC systems. Its auxiliary feedback input has additional and synchronous options, expanding functionality in handling feedback and enhancing system synchronization.
Frequently Asked Questions about KDA 3.1-100-3-AYS-U1:
Q: Why is the ±10V velocity reference important in KDA 3.1-100-3-AYS-U1?
A: It ensures accurate spindle speed control with minimal deviation. This supports precise machining operations requiring speed consistency.
Q: How does the 37-pin X2 interface benefit machine integration?
A: It provides a secure connection between the spindle drive and NC systems. This allows efficient data and signal transfer during operations.
Q: What role does the RS-232C serial interface play?
A: It enables communication between the drive and diagnostic systems. This assists in system monitoring and troubleshooting.
Q: Why is the vertical mounting orientation necessary in KDA 3.1-100-3-AYS-U1?
A: It aligns the grounding bolts properly for safe operation. This orientation also helps with optimized airflow for cooling.
Q: How does the auxiliary feedback input improve system performance?
A: It allows additional and synchronous signal inputs for better accuracy. This feature enhances coordination in automated spindle control.
