KDA 2.1-150-3-APS-U1
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The KDA 2.1-150-3-APS-U1 spindle drive features a rated current of 2.1 A and operates at a rated voltage of 150 V. Manufactured by Bosch Rexroth Indramat, it is part of the KDA Spindle Drives series and designed for panel mounting with IP20 protection. It weighs approximately 4.5 kg.
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Product Description:
The KDA Spindle Drive KDA 2.1-150-3-APS-U1 is a digital spindle drive from Bosch Indramat. It belongs to the KDA Spindle Drives series and is designed for precise spindle control. The drive accepts analog command input and performs reliably in industrial applications.
The KDA Spindle Drive KDA 2.1-150-3-APS-U1 mounting orientation is vertical with grounding bolts at the top. Environmental operation is guaranteed at +5 to +45 °C, with a maximum of +55 °C under derating conditions. It has a speed control range that starts at 0.0005 rpm and goes up to the maximum spindle speed. The incremental encoder connection allows for a position control resolution of 1/360,000 rotations. The motor provides a rated current of 150 A and a continuous current of 90 A. The cooling system uses forced air via a heatsink blower with a supply voltage of 115 VAC. The motor weighs 17.4 kg, the blower weighs 4.2 kg, and the mounting kit weighs 1.7 kg, for a total of around 23.3 kg with accessories. It withstands storage and transport temperatures from -30 to +85 °C and operates reliably up to 1000 m above sea level.
The Bosch Rexroth Indramat KDA 2.1-150-3-APS-U1 spindle drive can handle continuous motor outputs ranging from 3 to 22 kW. The device has a DC bus voltage of 300 VDC and accepts speed commands via an analog ±10 V signal. Humidity tolerance is defined by Class F DIN 40 040 up to 70% relative humidity. The protection category is IP10 under DIN 40 050. The interfaces include a 37-pin NC control interface with analog and digital outputs, a motor feedback connection for high-resolution encoders, and auxiliary connectors for easy integration. The KDA Drive provides reliability and performance across demanding applications.
Frequently Asked Questions about KDA 2.1-150-3-APS-U1:
Q: How does the auxiliary encoder input improve performance in the KDA 2.1-150-3-APS-U1 Spindle Drive?
A: It enables precise spindle positioning and supports secondary motor feedback. This improves control accuracy in high-precision machining operations.
Q: Why does the KDA 2.1-150-3-APS-U1 Spindle Drive use an analog ±10 V input?
A: The analog ±10 V signal ensures smooth speed command control. It provides compatibility with standard CNC systems for spindle regulation.
Q: How does the RS-232C interface benefit the KDA 2.1-150-3-APS-U1 Spindle Drive?
A: The serial RS-232C interface allows diagnostic communication and configuration. This ensures easier integration with automation systems.
Q: Why is forced cooling with a heatsink blower important for the KDA Spindle Drives?
A: It maintains thermal stability during high current loads. This extends drive reliability in continuous industrial use.
Q: What role does the 37-pin NC control interface play in spindle control?
A: It provides a direct connection for analog and digital signals. This ensures flexible integration with different numerical control systems.
