KDA 2.1-100-3-LPD-U1 Bosch Rexroth Indramat
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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.
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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.
Frequently Asked Questions about KDA 2.1-100-3-LPD-U1:
Q: What AC power supply is needed for the heatsink blower on the KDA 2.1-100-3-LPD-U1?
A: The KDA 2.1-100-3-LPD-U1 requires an AC source of 115V at 50-60Hz for its heatsink blower.
Q: How does the KDA 2.1-100-3-LPD-U1 receive position command values?
A: This model supports position command value through a digital interface.
Q: What is the ambient temperature operating range for the KDA 2.1-100-3-LPD-U1?
A: The KDA 2.1-100-3-LPD-U1 operates in ambient temperatures from 5 to 45 degrees Celsius.
Q: What type of cooling system is integrated in the KDA 2.1-100-3-LPD-U1 spindle drive?
A: It uses a mounted heatsink blower and forced cooling mode for heat management.
Q: What is the rated current of the Bosch Rexroth Indramat KDA 2.1-100-3-LPD-U1 drive?
A: The rated current for this drive is 100 A, supporting high-power spindle operations.
