KDA 3.2-150-3-DYD-U1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.2-150-3-DYD-U1 is a spindle drive from the KDA Spindle Drives series with a rated current of 150 Amps and uses forced cooling with a mounted heatsink blower that operates on 115V at 50-60Hz. It supports digital position and speed command value interfaces and features a second encoder input for synchronous operation. The drive operates within an ambient temperature range of 5 to 45 degrees Celsius and up to 1000 meters above sea level, using a 300 VDC supply voltage.
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Product Description:
The Bosch Rexroth Indramat KDA 3.2-150-3-DYD-U1 is a spindle drive unit in the KDA Spindle Drives series. As a spindle drive, it converts the fixed DC link energy supplied by the machine cabinet into precisely regulated three-phase power for high-speed motor spindles used in metal-cutting and machining centers. Within an automation cell it forms the axis controller that links the CNC control to the mechanical spindle, providing the torque and speed control required for drilling, milling, or grinding operations.
Its power stage is supplied from a regulated DC bus of 300 VDC, and the drive can deliver a continuous armature current of 150 A, giving it sufficient margin for rapid acceleration of large-inertia spindles. The integral heatsink blower is energized from an auxiliary line of 115 V/50–60 Hz, separating its cooling demand from the main drive supply. Heat is extracted through a mounted heatsink blower assembly, and the air path is arranged for forced cooling to keep semiconductor temperatures within limits during continuous duty. Spindle speed is commanded digitally; a Digital (16 bit parallel) word received from the control system permits fine resolution of setpoints without analog drift.
A protected operating envelope supports installation in workshops where ambient air remains between 5 to 45 °C, and performance is maintained up to 1000 m above sea level without derating. Besides the primary speed channel, the control board accepts a position command value, digital interface so that coordinated positioning moves can be executed directly from the CNC. Feedback redundancy is available through the connector that provides a second encoder input and synchronous input, allowing simultaneous evaluation of spindle encoder and an external reference sensor. Hardware identification marks this device as series 3, version 2, so its firmware and parameter files must match those revision levels for correct operation.
Frequently Asked Questions about KDA 3.2-150-3-DYD-U1:
Q: How is the KDA 3.2-150-3-DYD-U1 spindle drive cooled?
A: The KDA 3.2-150-3-DYD-U1 spindle drive is cooled using a mounted heatsink blower for efficient heat management.
Q: What is the rated current specification for the KDA 3.2-150-3-DYD-U1?
A: Rated current for this model is 150 A, enabling support for high-power spindle operations.
Q: What is the DC supply voltage required by the KDA 3.2-150-3-DYD-U1?
A: This spindle drive operates with a DC supply voltage of 300 VDC.
Q: What type of speed command interface does the KDA 3.2-150-3-DYD-U1 support?
A: The KDA 3.2-150-3-DYD-U1 accepts digital speed command values via a 16-bit parallel interface.
Q: What is the maximum installation elevation for the KDA 3.2-150-3-DYD-U1?
A: Maximum installation elevation for this drive is 1000 meters above sea level.
