KDA 3.1-100-3-DPD-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.1-100-3-DPD-W1 is a spindle drive from the KDA Spindle Drives series. It features forced cooling with a mounted heatsink blower powered by a 220V AC source. The unit has a rated current of 100 A and supports a DC supply voltage of 300 VDC, with digital interfaces for both position and speed command values.
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Product Description:
The KDA 3.1-100-3-DPD-W1 belongs to the KDA Spindle Drives series manufactured by Bosch Rexroth Indramat. As a series 3 unit, it incorporates updated digital interfaces while maintaining mechanical compatibility with earlier cabinets. It is engineered to regulate machine-tool spindles, translating numerical control instructions into controlled torque and speed so milling, drilling, or grinding processes follow programmed cycles. Its control functions suit machining systems that require stable spindle behavior across changing process demands. Feedback sockets on the front panel allow precise spindle position reference for tool-change alignment and synchronization with auxiliary axes during coordinated cuts. The unit is intended for panel mounting alongside other KDA modules inside production machinery.
Electrical operation centers on a bus link of 300 VDC, from which the output stage can provide up to 100 A of phase current to the spindle windings. Heat produced at that load is removed by an integrated mounted heat sink blower, and the fan is powered from an auxiliary supply of 220 V/50-60 Hz. The unit uses forced cooling, allowing it to maintain full current during continuous duty without derating. The drive also accepts a separate position-command interface and routes it through digital circuitry that works in parallel with the main speed channel. This arrangement supports machines that alternate between steady spindle rotation and motion sequences that require accurate positional coordination.
The speed reference uses a 16-bit digital parallel interface. A discrete channel carries the digital position command value for thread-cutting or rigid tapping cycles. A second encoder input can be assigned either to spindle feedback or to an additional axis motor, enabling coordinated motion from a single controller. This flexibility supports applications that require synchronized spindle behavior with another machine axis during tapping, threading, or contouring operations. The permitted working environment spans 5 to 45 °C, and installation is allowed up to 1000 m above sea level.
Frequently Asked Questions about KDA 3.1-100-3-DPD-W1:
Q: What cooling system does the KDA 3.1-100-3-DPD-W1 spindle drive use?
A: This model uses a mounted heatsink blower for forced cooling to maintain optimal operating temperatures.
Q: What type of DC supply voltage is required for the KDA 3.1-100-3-DPD-W1?
A: The KDA 3.1-100-3-DPD-W1 operates on a DC supply voltage of 300 VDC.
Q: What is the rated output current of the KDA 3.1-100-3-DPD-W1 spindle drive?
A: The rated current for this spindle drive is 100 A.
Q: How are speed command values input on the KDA 3.1-100-3-DPD-W1?
A: This spindle drive accepts digital speed command values in 16-bit parallel format.
Q: What is the highest recommended installation elevation for the KDA 3.1-100-3-DPD-W1?
A: The maximum permitted installation elevation for this drive is 1000 meters above sea level.
