KDA 2.1-150-3-AQS-U1
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The Bosch Rexroth Indramat KDA 2.1-150-3-AQS-U1, part of the KDA Spindle Drives series, is a rack-mounted, air-cooled servo drive with an IP20 protection class. It has a nominal current rating of 150 Amps, a voltage supply of 3 x 400/460 V AC, and outputs 2.1 kW of power. The drive weighs approximately 11 kg.
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Product Description:
The KDA 2.1-150-3-AQS-U1 Drive is a product of Bosch Rexroth Indramat, which runs on a nominal current of 150 A. This value of current is suitable for applications that need high electrical performance.
This spindle drive is powered by a direct current link voltage of 300 V, thus providing stability in the drive system while running. This spindle drive features a velocity command input in the form of an analog ±10 V input. It provides precision speed control, allowing for accurate spindle movement control. Furthermore, this drive features an auxiliary feedback input with 1V sinusoidal feedback capability to enhance accuracy and smooth operation in precision-oriented settings. The interface of this spindle drive is a 37-pin X2 connector that allows it to be connected to a number of computer-controlled systems. For greater functionality, this spindle drive also has a serial interface RS-232C, allowing parameter configuration, monitoring, and communication with external control systems. In the context of environmental ability, the KDA 2.1-150-3-AQS-U1 drive operates within an ambient temperature condition of +5 to +45 °C for stable performance.
The KDA 2.1-150-3-AQS-U1 drive accommodates installation at a maximum height of 1,000 meters from sea level, providing flexibility in deployment in different environments. To sustain operation across different humidities, this spindle drive adheres to humidity classification F according to DIN 40 040 standards. The efficient cooling of this drive is facilitated by an onboard heatsink blower unit, powered by a 115 V, 50-60 Hz supply. The 4.2 kg weight of this blower unit aids stable and efficient heat transfer, enabling the system to provide consistent performance over extended operation. Its connection reliability is provided by a 5 Nm tightening torque at the motor connection for safety as well as longevity during operation and mounting.
Frequently Asked Questions about KDA 2.1-150-3-AQS-U1:
Q: Why is the RS-232C interface provided in this spindle drive?
A: It enables configuration and diagnostic communication with external systems. This simplifies monitoring and parameter adjustments during operation.
Q: How does the auxiliary feedback input improve performance in KDA 2.1-150-3-AQS-U1?
A: The auxiliary input supports 1V sinusoidal feedback, enhancing speed precision. It stabilizes spindle positioning during demanding machining operations.
Q: What is the role of the 115V blower unit in this model?
A: The blower ensures proper cooling of the drive components. This extends the unit’s operational life under continuous loads.
Q: Why is the tightening torque specified at 5 Nm for this product?
A: It ensures secure electrical and mechanical motor connections. Correct torque prevents loosening and maintains stable power delivery.
Q: How does humidity classification F per DIN 40 040 help the KDA 2.1-150-3-AQS-U1?
A: It protects the unit against moisture-related damage. This ensures reliable operation in standard industrial conditions.
