KDA 3.2-050-3-DY0-U1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.2-050-3-DY0-U1 is a spindle drive from the KDA Spindle Drives series, designed with forced cooling using a mounted heatsink blower and supports an AC source of 115V at 50-60Hz. It operates with a rated current of 50 Amps, a DC supply voltage of 300 VDC, and supports digital 16-bit parallel speed command values. The drive supports ambient temperatures from 5 to 45 degrees Celsius and allows installation up to 1000 meters above sea level.
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Product Description:
The KDA 3.2-050-3-DY0-U1 is produced by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. It converts regulated DC-bus energy into three-phase output for machine-tool spindles, allowing the CNC control system to manage acceleration, braking, and steady-state speed. The unit is intended for spindle service in turning, grinding, and drilling equipment where rapid speed changes and stable rotation are required. When it is installed with matching supply and feedback modules in the same rack, the drive system remains compact and organized. This layout supports closed-loop spindle control in a centralized machine-drive assembly.
Its power section operates from a common link of 300 VDC and is rated for a continuous motor current of 50 A. The housing uses a mounted heat sink blower and forced cooling to remove heat from the output stage during repeated spindle acceleration and deceleration. The fan is powered by a dedicated 115 V/50-60 Hz source so airflow can continue independently of the DC link while residual heat leaves the power components. Speed commands are transmitted through a digital 16-bit parallel interface, which avoids analog drift and supports fine command resolution from the control. This combination of current capacity, directed airflow, and digital command input helps the drive maintain stable spindle response during changing machining loads.
The drive includes a second encoder input, which can be used for spindle-to-spindle synchronization or for additional position feedback checking. It operates in ambient temperatures from 5 to 45 °C, and installation is permitted at altitudes up to 1000 m above sea level before cooling capacity must be recalculated. The unit is Series 3 and Version 2. No additional interface option is installed, so the standard connection set remains unchanged. The blower, heat sink, and integrated thermal sensors help protect the switching devices during extended production runs.
Frequently Asked Questions about KDA 3.2-050-3-DY0-U1:
Q: What is the rated current output of the KDA 3.2-050-3-DY0-U1 spindle drive?
A: The KDA 3.2-050-3-DY0-U1 has a rated current of 50 A for spindle operation.
Q: How is the KDA 3.2-050-3-DY0-U1 spindle drive cooled?
A: This model features forced cooling provided by a mounted heatsink blower.
Q: What is the required DC supply voltage for the KDA 3.2-050-3-DY0-U1?
A: The spindle drive requires a 300 VDC supply voltage for operation.
Q: What is the maximum installation elevation for the KDA 3.2-050-3-DY0-U1?
A: The KDA 3.2-050-3-DY0-U1 can be installed at elevations up to 1000 meters above sea level.
Q: What format is used for speed command input on the KDA 3.2-050-3-DY0-U1?
A: This drive accepts digital speed command values in a 16-bit parallel format.
