KDA 3.1-100-3-AYS-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.1-100-3-AYS-W1 is a spindle drive from the KDA Spindle Drives series, designed with forced cooling through a mounted heatsink blower and operates at 300 VDC supply voltage. It has a rated current of 100 Amps, supports RS 232 C serial interface and second encoder input, and functions in ambient temperatures from 5 to 45 degrees Celsius.
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Product Description:
The KDA 3.1-100-3-AYS-W1 spindle drive is produced by Bosch Rexroth Indramat within the KDA Spindle Drives series. Intended for machine-tool spindles, the unit converts a regulated DC bus into variable three-phase output so that high-speed machining heads can follow numerical control commands with minimal lag. The drive mounts in a multi-axis cabinet and cooperates with companion modules to coordinate torque and velocity loops for industrial automation tasks.
The drive accepts a DC bus of 300 VDC, and its power stage is rated for 100 A of continuous output current, enabling it to drive large frameless motors during heavy cutting passes. The integrated heatsink blower is energized from 220 V/50-60 Hz, isolating cooling power from the DC link for stable thermal management. This arrangement helps keep airflow active and heat removal stable when spindle demand changes rapidly during machining cycles. Command inputs are analog, so the speed reference arrives as an analog voltage that the internal regulator converts into a firing pattern for the IGBT bridge. Diagnostic and parameter exchange occur through a serial interface (RS-232C) on the front panel, allowing host PC tuning without fieldbus hardware.
Environmental limits support long-term operation. Forced convection is maintained by forced cooling, which keeps semiconductor junctions below derating thresholds when the ambient temperature stays between 5 to 45 degrees Celsius. Installation is permitted up to 1000 m above sea level without current reduction, matching standard factory elevations. Motion feedback versatility is added through a second encoder input and a synchronous input, giving the controller a direct spindle-oriented position channel alongside the primary encoder. Within Series 3 hardware, this additional port allows real-time phase matching between master and follower spindles during synchronized tapping or orient functions.
Frequently Asked Questions about KDA 3.1-100-3-AYS-W1:
Q: What AC source does the KDA 3.1-100-3-AYS-W1 require for its heatsink blower?
A: This spindle drive operates with a heatsink blower requiring a 220V AC source at 50-60Hz.
Q: What type of additional interfaces are included with the KDA 3.1-100-3-AYS-W1 spindle drive?
A: The KDA 3.1-100-3-AYS-W1 supports serial interface (RS 232 C) for additional connectivity options.
Q: What is the rated current capacity of the KDA 3.1-100-3-AYS-W1 spindle drive?
A: The rated current for this drive is 100 A, which allows for high power spindle operation.
Q: What cooling method does the KDA 3.1-100-3-AYS-W1 spindle drive utilize?
A: This spindle drive uses forced cooling, utilizing a mounted heatsink blower for thermal management.
Q: What is the required DC supply voltage for the KDA 3.1-100-3-AYS-W1?
A: The DC supply voltage for this model is 300 VDC, suitable for standard spindle drive requirements.
