KDA 2.1-050-3-AQD-W1
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The KDA 2.1-050-3-AQD-W1 spindle drive delivers a rated continuous current of 50 amps, operates at 3 x 230/400 V AC with 50/60 Hz frequency, and features air cooling with an IP20 enclosure. Part of the KDA Spindle Drives by Bosch Rexroth Indramat, it boasts ≥ 95% efficiency and supports tacho and resolver feedback.
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Product Description:
The KDA 2.1-050-3-AQD-W1 is a motor control drive designed by Bosch with an integrated heatsink that operates on 220 VAC to provide forced-air cooling. It requires vertical panel mounting to ensure proper airflow with a required 80 mm clearance around the heatsink for ventilation. This drive is fully compatible with Indramat 2AD asynchronous and 1MB frameless spindle motors.
The KDA 2.1-050-3-AQD-W1 spindle drive offers a 50 A of continuous steady output current and it delivers a peak overload current capacity of up to 100 A. It accepts an analog command input of ±10 V for precise control and it needs a 24V DC control voltage for internal electronics. This drive provides motor feedback via the X3 connector, that supports resolver and 1 Vrms Sin/Cos encoder signals. It has an IP20 protection rating and needs to be housed within a sealed control cabinet. Its dimensional measure is approx. 500 mm in height, 300 mm in width and 220 mm in depth. The KDA spindle drive’s diagnostic capabilities include ready and fault status outputs, while it continuously monitors internal temperature, current and voltage. It features a 37-pin X2 control connector for analog and digital I/O as well as speed commands. The unit comes with an embedded microprocessor that efficiently manages speed, torque and position control.
The KDA 2.1-050-3-AQD-W1 spindle drive handles position control through a 16-bit parallel digital interface and supports high-resolution feedback through its X6 auxiliary encoder input. It maintains a DC bus voltage of 300 VDC and supports a resolution of up to 1/360000, while it operates at speeds as low as 0.0005 RPM. The KDA drive’s power terminals are labeled as A1, A2, A3, L+ and L-. It offers SERCOS communication through optional interfaces and includes grounding studs for safety.
Frequently Asked Questions about KDA 2.1-050-3-AQD-W1:
Q: Why does the KDA 2.1-050-3-AQD-W1 require 80 mm clearance around the heatsink?
A: The clearance ensures proper ventilation for forced-air cooling, preventing the motor drive from overheating during high-power operations.
Q: How does the KDA 2.1-050-3-AQD-W1 achieve high resolution in position control?
A: The 16-bit parallel digital interface combined with the auxiliary encoder input allows for resolution up to 1/360000, enhancing the accuracy of position control at low speeds.
Q: What role does the embedded microprocessor play in the KDA 2.1-050-3-AQD-W1?
A: The microprocessor efficiently manages speed, torque and position control, ensuring consistent performance and minimizing errors in operation.
Q: How does the KDA 2.1-050-3-AQD-W1 manage overload conditions?
A: With a peak overload current capacity of 100 A, the drive can handle short-term spikes without damaging the motor or drive system, ensuring system stability.
Q: What are the benefits of the KDA 2.1-050-3-AQD-W1's IP20 protection rating?
A: The IP20 rating ensures that the drive is protected against solid objects larger than 12 mm, but it still requires housing in a sealed control cabinet for added protection against dust and moisture.
