KDA 3.2-100-3-AYS-U1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Bosch Rexroth Indramat KDA 3.2-100-3-AYS-U1 is a spindle drive from the KDA Spindle Drives series, designed for forced cooling with a mounted heatsink blower and operates with a DC supply voltage of 300 VDC. This drive features a rated current of 100 Amps and supports a second encoder and synchronous input along with an RS 232 C serial interface.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The KDA 3.2-100-3-AYS-U1 spindle drive is manufactured by Bosch Rexroth Indramat for the KDA Spindle Drives series. It is a version 2 unit in the Series 3 hardware line and supplies regulated three-phase power to machine tool spindles. The device converts a stabilized DC link into a variable-frequency output and accepts a speed reference from a CNC controller so cutting, drilling, and grinding operations can follow the programmed profile. This arrangement lets the controller adjust spindle speed under changing load conditions while maintaining stable rotation during machining.
The power stage is energized from a 300 VDC link and can deliver a continuous armature current of 100 A without derating under the stated operating conditions. Thermal management uses forced cooling, and a mounted heat sink blower moves cabinet air across the power semiconductors to keep junction temperatures stable. That blower is supplied by an auxiliary line of 115 V/50-60 Hz, so airflow can remain available during standby or coast down. Independent blower power helps keep thermal conditions consistent even when the main DC bus is not actively driving the spindle. The drive also includes a second encoder input with a synchronous-signal terminal, allowing dual position feedback for applications that require spindle orientation and workpiece probing.
Operation is permitted at ambient temperatures from 5 to 45 °C and at installation heights up to 1000 m above sea level. System integration is supported by the front-panel serial interface (RS-232-C), which is used for parameter upload and fault diagnostics without removing the unit from the cabinet. This connection also provides direct access to operating data during service. During runtime, the spindle velocity reference arrives as an analog signal, and the drive filters that input before passing it to the internal digital control loop for the Series 3 electronics. The optional dual-encoder channel supports applications that need feedback from both the spindle and a synchronized external device.
Frequently Asked Questions about KDA 3.2-100-3-AYS-U1:
Q: What is the rated current of the KDA 3.2-100-3-AYS-U1 spindle drive?
A: The rated current for this spindle drive is 100 A.
Q: What power supply is needed for the heatsink blower of the KDA 3.2-100-3-AYS-U1?
A: This model requires a 115V AC source at 50-60Hz for its heatsink blower.
Q: What is the ambient temperature range for operating the KDA 3.2-100-3-AYS-U1?
A: The KDA 3.2-100-3-AYS-U1 operates within an ambient temperature range of 5 to 45 degrees Celsius.
Q: How is the KDA 3.2-100-3-AYS-U1 spindle drive cooled during operation?
A: Cooling is achieved through a mounted heatsink blower using forced cooling.
Q: What type of additional interface is provided on the KDA 3.2-100-3-AYS-U1?
A: This drive includes a serial interface (RS 232 C) as an additional interface option.
