KDA 3.2-050-3-LQ0-U1
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The Bosch Rexroth Indramat KDA 3.2-050-3-LQ0-U1 spindle drive is part of the KDA Spindle Drives series and uses liquid cooling (Water/Glycol mixture). It features a rated current of 50 Amps, operates at 3x400 VAC with a frequency of 50/60 Hz. The drive weighs approximately 24 kg and has IP20 protection.
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Product Description:
The KDA 3.2-050-3-LQ0-U1 is a motor control drive from Bosch, as a part of the KDA 3.2 modular series. It operates with 50.0 A of output current rating and its continuous current under nominal load conditions is 35.0 A. This drive uses a fixed DC bus voltage of 300 VDC and it connects motor via standard terminals A1, A2 and A3.
The KDA 3.2-050-3-LQ0-U1 drive supports speed command interface SERCOS through fiber optic link to provide digital high-speed data transfer rate. It has an additional encoder input that is configured for 1 VPP sinusoidal signals and it offer position feedback integration. There is no auxiliary interface present at port X6 and it consumes +24 V control voltage from the system bus, while draws 1.2 A of current. The unit utilizes forced-air convection through an external heatsink blower fan that functions on an input voltage of 115 V AC and supplies a cooling air velocity that ranges from 3 to 4 m/s across the heatsink. Its airflow volume reaches 32 l/s on average, at 30 Pa pressure and it mounts externally behind the enclosure. This KDA drive possess a weight of around 16.60 kg without accessories and its combined accessory weighs 5.9 kg that also includes a mechanical mounting kit M1-KD.
The KDA 3.2-050-3-LQ0-U1 drive carries a protection rating of IP10 as per DIN 40 050 standard that safeguards against solid foreign bodies over 50 mm in diameter. It integrates into CNC systems with high encoder resolution and its motor terminal supports M5 and M6 threads with defined torque ratings of 3 Nm and 5 Nm, respectively. This KDA drive can be vertically mounted with grounding bolts that are positioned on top and it supports installation up to 3300 ft of elevation without performance derating.
Frequently Asked Questions about KDA 3.2-050-3-LQ0-U1:
Q: How does the 1 VPP sinusoidal encoder input benefit the KDA 3.2-050-3-LQ0-U1 drive?
A: It enables high-resolution position feedback for precise motor control. This is critical for applications requiring tight motion synchronization.
Q: Why is a fiber-optic SERCOS interface used in this drive?
A: It reduces signal interference and enables real-time communication at high data rates. This improves drive responsiveness and command execution speed.
Q: What role does the external heatsink blower play in KDA 3.2-050-3-LQ0-U1?
A: It ensures thermal regulation by directing airflow at 32 l/s across the heatsink. This prevents thermal overload during continuous operation.
Q: How does the 3 Nm and 5 Nm torque rating of M5/M6 terminals help?
A: These defined torque values ensure safe and vibration-resistant connections. It helps prevent loosening of power terminals under mechanical stress.
Q: Why is vertical mounting preferred for this drive?
A: Its vertical installation optimizes airflow from the bottom to the top. It aligns with the blower direction for maximum cooling efficiency.
