KDA 2.1-150-3-AQD-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 2.1-150-3-AQD-W1 is a spindle drive from the KDA Spindle Drives series. It operates with a rated current of 150 Amps and requires a DC supply voltage of 300 VDC. The drive features forced cooling with a mounted heatsink blower and supports position command values through digital interfaces.
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Product Description:
The KDA 2.1-150-3-AQD-W1 belongs to the KDA Spindle Drives series produced by Bosch Rexroth Indramat. As a spindle drive, it converts regulated DC-link energy from an Indramat supply module into controlled three-phase power for high-speed machine tool spindles. This supports both speed regulation and position control in automated machining centers and similar equipment. It is suited to applications where the spindle must respond predictably during acceleration, deceleration, and commanded positioning.
The drive can deliver a continuous output of 150 A, so the connected spindle motor receives enough current for heavy cutting loads without derating. Its power stage is fed from a 300 VDC intermediate circuit, which couples directly to compatible supply units and simplifies cabinet-level bus distribution. Analog control systems can set spindle velocity through an analog speed command value input. CNC controllers that generate precise target positions can use a digital position command value interface. Thermal energy from the power electronics is removed by a dedicated airflow path that operates with forced cooling, so heat is expelled even when surrounding cabinet air remains still.
An external blower powered from a 220 V/50-60 Hz AC source drives airflow across the large surface fins of the mounted heatsink blower. This arrangement helps keep semiconductor junction temperatures within safe limits during continuous full-current operation. The unit can be installed in production halls where ambient temperatures stay between 5 to 45 degrees Celsius, and internal temperature sensors help protect against thermal shutdown within that range. System layout must also observe the altitude limit of 1000 m above sea level, because lower air density at higher elevations reduces cooling effectiveness and can require current derating to prevent overheating.
Frequently Asked Questions about KDA 2.1-150-3-AQD-W1:
Q: What is the rated current for the KDA 2.1-150-3-AQD-W1 spindle drive?
A: The KDA 2.1-150-3-AQD-W1 supports a rated current of 150 A for demanding spindle applications.
Q: How is the KDA 2.1-150-3-AQD-W1 cooled during use?
A: This spindle drive utilizes a mounted heatsink blower with forced cooling to regulate temperature during operation.
Q: What is the DC supply voltage required for the KDA 2.1-150-3-AQD-W1?
A: The KDA 2.1-150-3-AQD-W1 has a DC supply voltage rating of 300 VDC.
Q: What is the maximum installation elevation for the KDA 2.1-150-3-AQD-W1?
A: The KDA 2.1-150-3-AQD-W1 can be installed at elevations up to 1000 meters above sea level.
Q: What types of command values does the KDA 2.1-150-3-AQD-W1 accept?
A: Position command values are accepted digitally, while speed command values are provided in analogue form on this model.
