KDA 2.1-100-3-DQ0-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 2.1-100-3-DQ0-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 Volts. It uses forced cooling provided by a mounted heatsink blower powered by a 220V AC source, and operates in ambient temperatures from 5 to 45 degrees Celsius. The drive accepts digital 16-bit parallel speed command values and can be installed at elevations up to 1000 meters above sea level.
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Product Description:
The KDA 2.1-100-3-DQ0-W1 is a spindle drive produced by Bosch Rexroth Indramat within the KDA Spindle Drives series. Positioned on the DC link of an Indramat supply, it modulates three-phase power for high-speed spindle motors used in milling, drilling, and tapping processes. The unit belongs to design level 2 of the product line and combines power electronics with closed-loop current control to maintain accurate spindle speed during demanding metal-cutting cycles. Its control stage is intended to keep spindle speed stable when cutting loads change during machining.
The drive operates from a DC link of 300 VDC and can deliver up to 100 A of continuous output current, giving machine tools the torque reserve needed for rapid acceleration. Command data arrives through a 16-bit parallel interface, ensuring fine resolution when orienting the spindle for tool changes or rigid tapping. Thermal energy is removed by a heat sink-mounted blower; this fan is powered by an independent 220 V/50-60 Hz source so airflow is unaffected by DC-bus fluctuations. The combination of continuous current capacity, digital command input, and dedicated fan power supports stable operation during long CNC machining cycles.
The ambient and installation limits must be observed during operation. The specified ambient range is 5 to 45 °C, so enclosure ventilation must keep internal air within this band. Installation heights up to 1000 m above sea level are permitted before derating calculations become necessary. Cooling is classified as forced cooling, so air paths around the heat sink fins must remain unobstructed. The drive uses the standard speed word and bus links for control, and the mounting location must provide enough space for wiring, airflow, and heat sink clearance.
Frequently Asked Questions about KDA 2.1-100-3-DQ0-W1:
Q: What is the rated current for the KDA 2.1-100-3-DQ0-W1 spindle drive?
A: The KDA 2.1-100-3-DQ0-W1 operates with a rated current of 100 A.
Q: How is the KDA 2.1-100-3-DQ0-W1 spindle drive cooled?
A: Cooling is achieved through a mounted heatsink blower with forced air flow on this drive.
Q: What type of speed command input does the KDA 2.1-100-3-DQ0-W1 support?
A: It accepts a speed command value in a digital 16-bit parallel format.
Q: What is the maximum installation elevation for the KDA 2.1-100-3-DQ0-W1?
A: This spindle drive should be installed at elevations up to 1000 meters above sea level.
Q: What are the AC requirements for the heatsink blower in the KDA 2.1-100-3-DQ0-W1?
A: The AC source required for the heatsink blower is 220V at 50-60Hz.
