KDA 3.2-150-3-AYI-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.2-150-3-AYI-W1 is a spindle drive from the KDA Spindle Drives series with a rated current of 150 Amps and a DC supply voltage of 300 Volts. It features forced cooling with a mounted heatsink blower powered by a 220V AC source and is designed to operate in ambient temperatures from 5 to 45 degrees Celsius. This drive includes incremental encoder output and supports a second encoder input along with synchronous input.
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Product Description:
The KDA 3.2-150-3-AYI-W1 is a spindle drive produced by Bosch Rexroth Indramat for the KDA Spindle Drives series and is version 2 of the third design release. In machining centers and grinding systems, this drive converts constant DC bus power into regulated three-phase output for high-speed spindle motors. That allows speed and torque control to follow programmable setpoints from the machine controller. Its role is to keep spindle behavior stable during changing cutting loads and speed commands in automated machine tools.
The drive is supplied from a common DC bus at 300 VDC, and its power electronics are rated for a continuous output of 150 A. These ratings describe the electrical supply and continuous current capacity of the unit while the devices on the DC link remain within thermal limits during normal operation. A mounted heatsink blower supports the unit’s forced cooling mode, and this blower is energized from an auxiliary source of 220 V 50–60 Hz. The airflow passes across the heatsink surfaces so the switching components can release heat during sustained spindle duty. When installed in cabinets kept between 5 to 45 °C, internal temperature sensors help keep semiconductor junction temperatures within their permitted range.
Signal handling is expanded by an incremental encoder output that retransmits spindle position data to external automation devices. The drive also provides a second encoder input with a synchronous capture channel for high-resolution feedback loops, which supports applications that require closely timed position information. Speed reference values arrive as an analog voltage, allowing direct compatibility with conventional CNC control cards. Installation is permitted up to 1000 m above sea level without current derating. The forced-air cooling hardware is integrated into the heatsink extrusion, so no separate ductwork is needed and cabinet layout stays straightforward.
Frequently Asked Questions about KDA 3.2-150-3-AYI-W1:
Q: What is the rated current capability of the KDA 3.2-150-3-AYI-W1 spindle drive?
A: The KDA 3.2-150-3-AYI-W1 spindle drive has a rated current of 150 A, enabling it to power high-demand spindle applications.
Q: How is the KDA 3.2-150-3-AYI-W1 spindle drive cooled?
A: This drive uses a mounted heatsink blower for forced cooling, ensuring reliable thermal management during operation.
Q: What is the acceptable ambient temperature range for operating the KDA 3.2-150-3-AYI-W1?
A: The KDA 3.2-150-3-AYI-W1 operates within an ambient temperature range of 5 to 45 degrees Celsius.
Q: What power source is required for the heatsink blower on the KDA 3.2-150-3-AYI-W1?
A: The drive accepts an AC source for the heatsink blower of 220V at 50-60Hz.
Q: What encoder interfaces are provided by the KDA 3.2-150-3-AYI-W1 spindle drive?
A: Incremental encoder output and a second encoder input with synchronous input are available for enhanced feedback and control.
