KDA 3.2-100-3-DP0-U1 Bosch Rexroth Indramat
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MPN: R911243265
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The Bosch Rexroth Indramat KDA 3.2-100-3-DP0-U1 belongs to the KDA Spindle Drives series and operates with a rated current of 100 Amps and a DC supply voltage of 300 VDC. This spindle drive features forced cooling via a mounted heatsink blower and supports a digital speed command value with 16 bit parallel input. It is suitable for use at ambient temperatures from 5 to 45 degrees Celsius and elevations up to 1000 meters above sea level.
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Product Description:
The KDA 3.2-100-3-DP0-U1 belongs to the KDA Spindle Drives series from Bosch Rexroth Indramat. It is a dedicated spindle drive that converts a fixed DC link into controlled three-phase output for high-speed machine-tool spindles, letting CNC controllers command torque and velocity precisely in automated production cells. As part of an integrated drive package, the unit interfaces with supply modules and encoder feedback to position or orient the work spindle during cutting, grinding, or drilling operations. This arrangement allows the spindle axis to respond quickly to speed changes and orientation commands used in automated machining. It is suited for machine tools that require stable speed regulation during rapid acceleration, controlled deceleration, and accurate spindle stopping.
The power section operates from a DC link of 300 VDC, and its output stage can deliver a continuous line current of 100 A, which is suitable for large-frame induction or synchronous spindle motors. Internal thermal management is supplied by an AC feed of 115 V, 50/60 Hz that powers the cooling hardware. Heat is removed by a mounted heat sink blower, and the drive uses forced cooling so airflow remains available during sustained spindle loading. This cooling arrangement helps limit semiconductor temperature rise during long machining cycles and supports consistent current delivery.
The electronics operate in ambient air from 5 to 45 °C, and the unit can be installed up to 1000 m above sea level without extra derating. Velocity reference data enters through a 16-bit parallel digital input, which gives the control system fine resolution for spindle speed commands. A second encoder input accepts incremental or absolute feedback for gearless spindle orientation, and the unit has no additional interface option. This layout supports direct exchange of speed and position information between the spindle drive and the upstream numerical control. The separate feedback channel also lets the control system monitor actual spindle position during indexing or tool-change alignment.
Frequently Asked Questions about KDA 3.2-100-3-DP0-U1:
Q: What is the rated current output of the KDA 3.2-100-3-DP0-U1 spindle drive?
A: The KDA 3.2-100-3-DP0-U1 delivers a rated current of 100 A.
Q: What is the required DC supply voltage for the KDA 3.2-100-3-DP0-U1?
A: This model operates with a DC supply voltage of 300 VDC.
Q: What cooling method is used in the KDA 3.2-100-3-DP0-U1 spindle drive?
A: The KDA 3.2-100-3-DP0-U1 uses forced cooling via a mounted heatsink blower.
Q: What is the maximum installation elevation for the KDA 3.2-100-3-DP0-U1?
A: This unit can be installed up to 1000 meters above sea level.
Q: Does the KDA 3.2-100-3-DP0-U1 have a second encoder input?
A: A second encoder input is included for spindle or additional motor feedback.
