KDA 2.1-050-3-AYS-W1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat KDA 2.1-050-3-AYS-W1 is a spindle drive from the KDA Spindle Drives series. It operates with a rated current of 50 A and uses a DC supply voltage of 300 VDC. The drive features a forced cooling system with a mounted heatsink blower and has a serial interface RS 232 C.
Internal Product Review
The KDA 2.1-050-3-AYS-W1 is a Bosch Rexroth Indramat spindle drive equipped with a mounted heatsink blower for effective forced cooling and an AC source of 220V/50-60Hz. It features a rated current of 50 A and supports both a second encoder input and synchronous input, making it suitable for demanding spindle control tasks. The inclusion of a serial interface (RS 232 C) enhances connectivity, highlighting this drive's versatility in industrial automation environments.
Have a part to sell?
Wake Industrial Warranty
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
Bosch Rexroth Indramat manufactures the KDA 2.1-050-3-AYS-W1 as part of its KDA Spindle Drives series. This spindle drive converts regulated DC bus energy into variable three-phase outputs for high-speed machining spindles, giving CNC controllers closed-loop speed and torque regulation. Within an automation cell it links the main power supply to the spindle motor and transmits feedback to the motion controller, allowing coordinated tool changes and contouring operations on milling or grinding equipment.
The unit accepts a DC link of 300 VDC, and its power stage is rated for 50 A, so the connected spindle can draw substantial acceleration current without triggering overcurrent faults. Control electronics derive cooling air from an external source that is energized by an auxiliary blower supply of 220 V 50/60 Hz; this dedicated supply keeps the heatsink airflow independent from the main bus so thermal protection remains active during line disturbances. Command data enter the drive through an RS-232 C serial port, simplifying parameter uploads from the numerical controller during setup. The velocity loop receives its reference as an analog signal, which is filtered internally to 12-bit resolution for fine speed trimming. A second encoder input with synchronous capture allows phase-aligned feedback from an auxiliary position transducer, letting the spindle share a common master clock with rotary axes.
Thermal management relies on a heat sink-mounted blower that pushes air directly across the power semiconductor fins; in conjunction with forced cooling it allows the converter to maintain full current even at an ambient of 5 to 45 °C. Installation is specified for sites up to 1000 m above sea level, so standard convection coefficients and partial pressures were considered when sizing the blower and heatsink. The available second encoder and synchronous inputs remain operational across the stated temperature span, ensuring position capture accuracy while the drive receives periodic airflow from the dedicated fan circuit.
