KDA 2.1-100-3-LPD-U1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat KDA 2.1-100-3-LPD-U1 is part of the KDA Spindle Drives series and is designed as a spindle drive. It operates with a rated current of 100 Amps and uses a forced cooling system with a mounted heatsink blower powered by 115V, 50-60Hz AC. The drive is equipped with digital position command value interfaces, a SERCOS speed command, and supports a second encoder input for spindle or motor feedback.
Internal Product Review
The KDA 2.1-100-3-LPD-U1 spindle drive from Bosch Rexroth Indramat features a 100 A rated current and utilizes a forced cooling system with a mounted heatsink blower for reliable performance in demanding environments. Its SERCOS interface for speed command value and additional digital position command input offer precise control integration. This drive excels in applications requiring high current and accurate motor feedback.
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Product Description:
The KDA 2.1-100-3-LPD-U1 spindle drive is produced by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. It operates as the power stage between a shared DC link and a three-phase spindle motor, regulating torque and speed in response to digital setpoints from a machine controller. Within industrial automation, this unit maintains precise spindle rotation for milling, drilling, or grinding tasks, ensuring that the motor follows commanded velocity and direction during material removal.
The drive carries a continuous phase rating of 100 A, so supply conductors and protective devices must withstand that current without overheating. Its intermediate circuit is energized at 300 VDC, providing a stable voltage source that supports rapid acceleration and deceleration of the spindle. A dedicated heat sink blower runs from 115 V/50–60 Hz, allowing cooling to continue regardless of the DC bus state. Speed references arrive over the SERCOS interface, giving deterministic fiber-optic communication with CNC controls. Thermal energy generated by high switching frequencies is removed by the mounted heat sink blower, keeping semiconductor junctions within safe limits during prolonged high-speed machining.
Operation is approved in ambient temperatures from 5 to 45 °C, covering standard shop-floor conditions without derating. Installations up to 1000 m above sea level are permissible before altitude corrections become necessary. For precise orientation, the unit provides a second encoder input and accepts a digital position command value signal that complements the speed loop. The unit uses forced cooling, ensuring heat is removed efficiently even when the cabinet is densely packed. It is part of Series 2 hardware used in multi-axis machining centers.
