KDA 2.1-050-3-D00-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 2.1-050-3-D00-W1 is a spindle drive from the KDA Spindle Drives series with forced cooling by a mounted heatsink blower and a rated current of 50 Amps. It operates on 300 VDC supply voltage and supports a digital 16-bit parallel speed command value. The drive is designed for use in environments with ambient temperatures from 5 to 45 degrees Celsius and can be installed up to 1000 meters above sea level.
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Product Description:
The KDA 2.1-050-3-D00-W1 is a spindle drive produced by Bosch Rexroth Indramat as part of the KDA Spindle Drives series. In automated machining centers, this unit regulates three-phase induction or synchronous spindles by converting regulated DC bus power into a variable output that tracks digital speed commands. The drive is intended for cabinet installation, where its built-in heat sink blower and forced-air path support stable operation during continuous high-speed cutting cycles. It is suited for machine tools that need repeatable spindle speed under changing load conditions. By adjusting inverter output in real time, the drive supports steady operation during drilling, milling, and similar machining processes.
The power section delivers a continuous output current of 50 A, allowing the connected spindle motor to reach rated torque without derating. That current is drawn from an intermediate circuit at 300 VDC, so the upstream supply or common DC link must be sized for that level. Thermal energy is removed by forced cooling through a mounted heat sink blower that receives its own single-phase feed of 220 V / 50–60 Hz. Because the cooling fan is powered independently, airflow can remain available even when the main inverter stage is disabled. Velocity setpoints reach the control electronics through a digital 16-bit parallel interface, providing fine resolution for speed control inside the machine.
Installation parameters include an ambient range of 5 to 45 °C and a maximum site altitude of 1000 m above sea level. The unit is version 2 in the series and uses the same cabinet footprint as related models, but it has no additional interface option. It also has no second encoder input, so any added feedback channel must be handled externally when the application requires it. These operating limits should be observed so cooling performance remains consistent in enclosed cabinet installations.
Frequently Asked Questions about KDA 2.1-050-3-D00-W1:
Q: What AC power supply does the heatsink blower of the KDA 2.1-050-3-D00-W1 require?
A: The KDA 2.1-050-3-D00-W1 spindle drive requires a 220V AC source at 50-60Hz to power its heatsink blower.
Q: What cooling method is used on the KDA 2.1-050-3-D00-W1 spindle drive?
A: This model operates with forced cooling, utilizing a mounted heatsink blower for thermal management.
Q: How are speed command values input on the KDA 2.1-050-3-D00-W1 spindle drive?
A: The KDA 2.1-050-3-D00-W1 supports digital speed command values using a 16-bit parallel interface.
Q: What is the required DC supply voltage for the KDA 2.1-050-3-D00-W1?
A: The rated DC supply voltage for this spindle drive is 300 VDC.
Q: What is the maximum allowed installation elevation for the KDA 2.1-050-3-D00-W1?
A: This unit can operate at installation elevations up to 1000 meters above sea level.
