KDA 3.2-050-3-DQD-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.2-050-3-DQD-W1 is a spindle drive from the KDA Spindle Drives series. It features a rated current of 50 Amps and operates with a DC supply voltage of 300 VDC. The drive uses forced cooling with a mounted heatsink blower and supports digital speed and position command values.
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Product Description:
Bosch Rexroth Indramat manufactures the KDA 3.2-050-3-DQD-W1, a spindle drive from the KDA Spindle Drives series. This device supplies controlled three-phase power to high-speed machine-tool spindles, converting DC link energy into regulated motor currents for precision machining tasks in industrial automation. It belongs to series release 3.2 and uses Indramat's third-generation control architecture. In machine tools, it regulates spindle current quickly enough to support commanded acceleration, deceleration, and speed holding under changing cutting load.
The drive operates from a DC bus of 300 VDC, so the cabinet power section must maintain that link voltage for stable modulation. Its continuous output current is 50 A, which is the sustained current the spindle windings can receive during operation. Heat is removed by a mounted heat sink blower that directs airflow across the power section instead of depending only on cabinet ventilation. The drive uses forced cooling, which keeps airflow present even when spindle speed is low. The blower is powered from an auxiliary supply of 220 V / 50–60 Hz, which lets cooling continue while the DC bus is discharging after power is removed. Because the cooling air is generated at the drive, thermal performance does not depend entirely on the surrounding enclosure airflow.
The drive is intended for ambient temperatures from 5 to 45 °C, and installation is permitted up to 1000 m above sea level. Speed commands are sent as a 16-bit parallel digital speed reference, while a separate digital position command value input supports coordinated axis motion. These separate command channels suit control systems that issue explicit data words for spindle regulation and coordinated movement. The stated temperature and altitude limits correspond to the cooling capacity available from the blower system.
Frequently Asked Questions about KDA 3.2-050-3-DQD-W1:
Q: What is the rated current capacity of the KDA 3.2-050-3-DQD-W1 spindle drive?
A: The KDA 3.2-050-3-DQD-W1 operates with a rated current of 50 A.
Q: How is cooling achieved on the KDA 3.2-050-3-DQD-W1 spindle drive?
A: This spindle drive uses a mounted heatsink blower for forced cooling to manage heat dissipation.
Q: What type of speed command value interface is provided on the KDA 3.2-050-3-DQD-W1?
A: The KDA 3.2-050-3-DQD-W1 features a digital 16-bit parallel speed command value interface for precise speed setting.
Q: What is the acceptable ambient temperature range for using the KDA 3.2-050-3-DQD-W1?
A: Operation is recommended in ambient temperatures between 5 and 45 degrees Celsius.
Q: What AC power specifications are necessary for the heatsink blower on the KDA 3.2-050-3-DQD-W1?
A: The KDA 3.2-050-3-DQD-W1 requires a 220V AC source at 50-60Hz for the heatsink blower.
