KDA 3.2-100-3-DQS-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.2-100-3-DQS-W1 is a spindle drive from the KDA Spindle Drives series with a rated current of 100 Amps and a DC supply voltage of 300 VDC. This Series 3, Version 2 drive features forced cooling with a mounted heatsink blower operating on a 220V AC source at 50-60Hz, and is equipped with a serial RS 232 C interface and digital 16-bit parallel speed command value.
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Product Description:
The KDA 3.2-100-3-DQS-W1 spindle drive is manufactured by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. As a closed-loop power module, it supplies and regulates three-phase asynchronous or synchronous spindle motors used in machining centers, grinders, and other metal-cutting equipment. By converting energy from a common DC bus into controlled output current, the unit provides speed and torque commands that help the automation controller maintain consistent surface speeds during cutting operations. This arrangement also lets the drive respond quickly to load changes that occur during drilling, milling, and grinding cycles.
Internally, the drive is tied to the shared DC link at 300 VDC, so its switching devices modulate that bus to meet motor demands. The unit can deliver a continuous armature current of 100 A, giving it the current capacity needed for large-frame spindles that draw high startup or acceleration current. Thermal energy is removed by a heat sink blower supplied from an independent 220 V/50/60 Hz single-phase line. Using a separate blower supply keeps cooling performance available even when spindle demand changes rapidly on the DC bus. Because the blower is integrated as a mounted heat sink blower, the cabinet does not require separate ducting. Speed references arrive through a 16-bit parallel digital interface, allowing the CNC to request precise velocity values without analog drift.
The drive is intended for room temperatures from 5 to 45 °C, which covers most production-floor conditions while protecting semiconductor life. Installation is permissible up to 1000 m above sea level before output derating becomes necessary. Its cooling method uses forced cooling, so continuous airflow must remain unobstructed to keep the internal heat sinks below rated limits during high-duty cycles. For diagnostics and parameter downloads, the unit includes an RS-232-C serial interface that allows compatible software to capture fault histories and adjust configuration without removing the drive from the machine.
Frequently Asked Questions about KDA 3.2-100-3-DQS-W1:
Q: What cooling method is used in the KDA 3.2-100-3-DQS-W1 spindle drive?
A: This drive utilizes a mounted heatsink blower for cooling, which provides forced cooling to manage heat during operation.
Q: What is the required AC source for the heatsink blower on this spindle drive?
A: The KDA 3.2-100-3-DQS-W1 requires a 220V AC source at 50 to 60 Hz for the heatsink blower.
Q: What is the rated current of the KDA 3.2-100-3-DQS-W1 spindle drive?
A: The maximum continuous current rating for this model is 100 A.
Q: What is the maximum installation elevation for the KDA 3.2-100-3-DQS-W1?
A: This drive can be installed at elevations up to 1000 meters above sea level.
Q: What type of additional interface does the KDA 3.2-100-3-DQS-W1 provide?
A: A serial RS 232 C interface is included for connectivity with external devices.
