KDA 3.2-100-3-AQ0-U1
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The KDA 3.2-100-3-AQ0-U1 is a spindle drive manufactured by Bosch Rexroth Indramat. Part of the KDA Spindle Drives series, it features a transmission ratio of 3.2 and a rated output torque of 100 Nm. The unit employs a planetary gear system with low backlash. It has a solid output shaft and flange mounting.
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Product Description:
The KDA 3.2-100-3-AQ0-U1 is a Bosch’s spindle drive that is optimized for controlling asynchronous and frameless motors. It operates with a 300 V DC of bus voltage and delivers a continuous steady current of 70 A while its peak rated current is 100 A. This drive features forced cooling via a heatsink blower that operates on a 115VAC, 50/60 Hz supply source.
The KDA 3.2-100-3-AQ0-U1 drive accepts ±10 V analog speed command inputs and it does not support SERCOS/RS 232C communication interfaces. It includes a 15-pin terminal for motor feedback and comes with standardized power interfaces for electrical connectivity. This drive is equipped with an auxiliary encoder input that supports encoders generating 1 V sinusoidal signal output as feedback and its AS3 programming module stores both drive-specific along with user-specific parameters to enable quick setup and synchronization with different machine types. The AS module provides easy replacement and facilitates the duplication of configuration settings. It is built to operate in a temperature range from +5°C to +45°C, with a maximum ambient value of 55°C and it is suitable for installations up to 1000 meters above sea level. The KDA drive is designed to allows vertical installation and its total weight is 17.1 kg, while the blower unit adds an additional 4.2 kg and the mechanical mounting kit weighs 1.7 kg.
The KDA 3.2-100-3-AQ0-U1 drive possess built-in fault diagnostics that trigger automatic shutdowns in case of operational anomalies and it includes a transparent safety guard for added protection during operation. It utilizes 1.4 A in 24 VDC mode of control volage and 160 mA with +-15 V measuring voltage. This KDA drive connects motor’s winding thermistor at its X12 terminal that is labelled as T1 and T2, along with a grounding point for safety.
Frequently Asked Questions about KDA 3.2-100-3-AQ0-U1:
Q: How does the forced-air cooling benefit the KDA 3.2-100-3-AQ0-U1’s thermal management?
A: By directing airflow over the heatsink, it maintains temperature under specified limits for continuous 70 A operation. This prevents thermal shutdowns and prolongs component lifespan.
Q: Why might a designer choose ±10 V analog input instead of digital communication for the KDA 3.2-100-3-AQ0-U1?
A: Analog input simplifies integration with legacy controllers where low-latency speed commands are needed. It avoids protocol overhead and ensures smoother real-time control.
Q: What advantage does the auxiliary encoder input (1 V sinusoidal) provide in the KDA 3.2-100-3-AQ0-U1?
A: It allows high-resolution feedback from modern encoders, improving spindle speed accuracy and stability. This enhances position control in precision machining.
Q: How does the AS3 programming module improve maintenance for the KDA 3.2-100-3-AQ0-U1?
A: It stores drive and user parameters so that replacements or swaps restore configuration instantly. This minimizes downtime and simplifies commissioning.
Q: Why is vertical installation capability important for the KDA 3.2-100-3-AQ0-U1?
A: It offers flexible mounting options in space-constrained machinery or cabinet layouts. Gravity-neutral design ensures consistent cooling regardless of orientation.
