KDA 2.1-100-3-AP0-W1 Bosch Rexroth Indramat
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MPN: R911228553
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The Bosch Rexroth Indramat KDA 2.1-100-3-AP0-W1 is a spindle drive from the KDA Spindle Drives series, featuring a rated current of 100 Amps and a DC supply voltage of 300 VDC. It uses a forced cooling mode with a mounted heatsink blower and supports operation in ambient temperatures between 5 and 45 degrees Celsius. The drive offers a second encoder input for spindle or additional motor feedback, and can be installed up to 1000 meters above sea level.
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Product Description:
The KDA 2.1-100-3-AP0-W1 spindle drive is produced by Bosch Rexroth Indramat within the KDA Spindle Drives series. It sits between the DC supply module and a high-speed machine tool spindle, converting the common DC bus into controlled three-phase output while processing speed reference and feedback signals. By performing this duty, the drive supports precise torque and velocity regulation for milling, drilling, and grinding axes in automated production equipment. The control stage responds quickly to changing spindle loads, which helps keep cutting speed stable through varying tool engagement. As a member of series 2, it is configured for installation in multi-axis racks alongside matching supply and control electronics, where compact arrangement and coordinated axis control are important.
Its power section is sized for a continuous output of 100 A, allowing the motor to deliver full spindle torque without derating. The internal electronics draw their energy from a regulated 300 VDC link that is shared with other drives in the cabinet, which supports centralized power distribution in multi-axis systems. Thermal management is handled by a mounted heat sink blower, and the fan motor is supplied from mains at 220 V/50-60 Hz to maintain steady airflow across the cooling fins. Because the assembly relies on forced cooling, heat can be removed continuously during extended high-speed operation when cabinet airflow remains unobstructed.
The mechanical layout supports cabinet mounting at up to 1000 m above sea level, so normal blower performance is maintained at moderate installation altitudes. Reliable electronic operation is specified for an ambient range of 5 to 45 degrees Celsius, giving a practical temperature window for enclosed machine cabinets and ventilated electrical rooms. For feedback handling, the drive includes a second encoder input, which can be assigned to spindle sensors or to an auxiliary servo when synchronized motion is required. Communication options remain simple because the design has no additional interface option, so control integration centers on the analog command path and the available feedback connections.
Frequently Asked Questions about KDA 2.1-100-3-AP0-W1:
Q: What is the rated current for the KDA 2.1-100-3-AP0-W1 spindle drive?
A: The KDA 2.1-100-3-AP0-W1 spindle drive features a rated current of 100 A.
Q: How is the KDA 2.1-100-3-AP0-W1 spindle drive cooled?
A: This model uses a mounted heatsink blower, providing forced cooling during operation.
Q: What AC source is required for the heatsink blower on the KDA 2.1-100-3-AP0-W1?
A: The AC source for the heatsink blower on this drive is 220V at 50-60Hz.
Q: What is the maximum installation elevation for the KDA 2.1-100-3-AP0-W1?
A: This spindle drive can be installed up to 1000 meters above sea level.
Q: What type of speed command input does the KDA 2.1-100-3-AP0-W1 accept?
A: The input for speed command values on this unit is analog.
