KDA 3.2-150-3-D00-W1 Bosch Rexroth Indramat
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MPN: R911232059
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The Bosch Rexroth Indramat KDA 3.2-150-3-D00-W1 is a spindle drive from the KDA Spindle Drives series with a rated current of 150 Amps and a DC supply voltage of 300 VDC. It features a forced cooling system using a mounted heatsink blower and operates within an ambient temperature range of 5 to 45 degrees Celsius.
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Product Description:
The KDA 3.2-150-3-D00-W1 is a spindle-drive unit produced by Bosch Rexroth Indramat for the KDA Spindle Drives series. Designed for third-generation axis packages in CNC machine tools and machining centers, the module converts a fixed DC link into controlled three-phase power so that spindles can accelerate, decelerate, and hold commanded speed with minimal overshoot under changing load. Version 3.2 keeps the regulation tasks inside the drive, allowing the main controller to focus on interpolation and part programs while the drive maintains tight velocity loops during drilling, milling, tapping, and other heavy metal-removal cycles.
The power section operates from a DC bus of 300 VDC and can deliver 150 A to the motor windings during continuous operation, giving the spindle enough current for sustained production duty. Thermal management relies on a mounted heat sink blower that moves air directly across the internal fins, and the drive uses forced cooling to prevent semiconductor overheating during high-duty machining or extended low-speed spindle operation. The blower’s fan motor is supplied from an auxiliary line of 220 V, 50/60 Hz, which keeps cooling demand separate from the DC bus and helps preserve available spindle torque when the application requires frequent acceleration, deceleration, and repeated speed changes.
The unit functions within an ambient range of 5 to 45 degrees Celsius and retains full ratings up to 1000 m above sea level, which covers most indoor production floors and common installation elevations used for machine cabinets. Speed references arrive through a 16-bit parallel digital channel, allowing the drive to accept command data from compatible motion controllers without using an analog speed input and supporting consistent digital command transfer to the spindle loop. Communication expansion is limited because the unit has no additional interface option, and the second-encoder socket is omitted, so external feedback devices must be wired through the primary channel when additional position or speed feedback is required.
Frequently Asked Questions about KDA 3.2-150-3-D00-W1:
Q: What is the rated current of the KDA 3.2-150-3-D00-W1 spindle drive?
A: The KDA 3.2-150-3-D00-W1 spindle drive has a rated current of 150 A.
Q: What cooling method does the KDA 3.2-150-3-D00-W1 use?
A: This spindle drive uses a mounted heatsink blower with forced cooling to regulate temperature during operation.
Q: How is speed command input delivered to the KDA 3.2-150-3-D00-W1 spindle drive?
A: The speed command value for this model is provided digitally via a 16-bit parallel interface.
Q: What is the required DC supply voltage for the KDA 3.2-150-3-D00-W1?
A: The KDA 3.2-150-3-D00-W1 operates with a DC supply voltage of 300 VDC.
Q: What is the maximum installation elevation for the KDA 3.2-150-3-D00-W1?
A: This model is rated for installation at elevations up to 1000 meters above sea level.
