KDA 2.1-100-3-AQS-U1

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The Bosch Rexroth Indramat KDA 2.1-100-3-AQS-U1 is part of the KDA Spindle Drives series and features air cooling (AQS) with panel mounting. It operates with a continuous current of 2.1 Amps and supports encoder feedback. The drive has a rated supply voltage of 230 VAC, 3-phase, and a protection class of IP 10.

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Product Description:

The KDA 2.1-100-3-AQS-U1 is an AC main spindle drive designed for motion regulation in automated systems. It offers regulated speed and torque by converting electrical energy into controlled mechanical motion suitable for high-performance spindle operations. Its primary role is to enable precision and consistency in spindle control, making it ideal for applications such as CNC machining, automated assembly and high-speed material processing. The drive is built to maintain smooth, coordinated movement, adapting to dynamic load conditions.

The drive maintains a consistent current output of 100 A, ensuring reliable drive performance even in high-load applications. Its enhanced current capacity provides the head room needed to accommodate peak loads and swift changes in speed without excessive wear or thermal stress. This ensures stable performance across applications and diverse load scenarios. The drive is engineered to offer compatibility with a wide variety of standard motion controllers. It supports analog ±10 V command inputs, facilitating precise modulation of the motor’s rotational speed by converting the voltage signals into corresponding drive commands.

The KDA 2.1-100-3-AQS-U1 enables high-resolution feedback integration via its encoder input for 1V sinusoidal encoders. This interface supports precision analog signals, typically from sine-cosine encoders, allowing the drive to process detailed position and speed data with minimal interpolation error. The result is improved control accuracy, optimizing motor performance in dynamic applications. This drive comes with an RS-232C serial interface, providing a reliable point-to-point communication channel for configuring, monitoring, and troubleshooting the drive. This standard interface enables direct connection to a PC or control terminal, enabling hassle-free integration into control systems. The interface can be used for firmware updates and real-time status monitoring, streamlining commissioning and maintenance tasks.

Continuous Current
2.1 A
Cooling Style
Air (AQS)
Electrical Connection
Standard
Encoder Feedback Supported
Yes
Frequency
50/60 Hz
Integrated Brake Supply
Included
Mounting
Panel mount
Number Of Feedback Channels
3
Operating Temperature Range
0°C to 45°C
Peak Current
100 A
Protection Class
IP 10 (without enclosure), higher if installed in suitable cabinet
Rated Power Output
Varies with motor; up to several kW
Rated Supply Voltage
230 VAC (+/-10%), 3-phase
  • KDA 211003AQSU1

Frequently Asked Questions about KDA 2.1-100-3-AQS-U1:

Q: What rated current does the KDA 2.1-100-3-AQS-U1 have?

A: The KDA 2.1-100-3-AQS-U1 has a rated current of 100 A, enabling it to drive high-performance spindle motors with consistent power output and stable torque regulation.

Q: Does the KDA 2.1-100-3-AQS-U1 support sinusoidal encoder feedback?

A: Yes, the KDA 2.1-100-3-AQS-U1 supports a 1V sinusoidal encoder input, which improves motion accuracy by providing high-resolution position and speed signals.

Q: What type of speed command input is available on the KDA 2.1-100-3-AQS-U1?

A: The KDA 2.1-100-3-AQS-U1 includes an analog ±10V speed command input, allowing for smooth and precise speed regulation from external controllers.

Q: What kind of cooling system does the KDA 2.1-100-3-AQS-U1 use?

A: The KDA 2.1-100-3-AQS-U1 features a forced air cooling system powered by a 115V AC supply, which enhances thermal stability and allows sustained operation under high loads.

Q: What encoder interface does the KDA 2.1-100-3-AQS-U1 provide for feedback?

A: The KDA 2.1-100-3-AQS-U1 is equipped with an incremental encoder output, enabling accurate feedback transmission to motion control systems.


Internal Product Review

  • ‘‘The KDA 2.1-100-3-AQS-U1 performs reliably in continuous operation, with excellent speed regulation and thermal stability. Integration into existing automation setups was smooth thanks to standard interfaces. However, the RS-232C interface may feel dated for systems needing modern connectivity.’’

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