RAC 2.3-150-460-L00-W1 Bosch Rexroth Indramat
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MPN: R911272874
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The Bosch Rexroth Indramat RAC 2.3-150-460-L00-W1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series. It features an internal blower for cooling and operates with a rated current of 150 Amps at connection voltages of 3 x AC 400 V or 3 x AC 460 V. The unit supports a SERCOS speed command and is equipped with X4 optical waveguide interface terminals.
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Product Description:
The Bosch Rexroth Indramat RAC 2.3-150-460-L00-W1 is an AC main spindle drive controller positioned within the RAC Spindle Drive Controllers series. Serving as the axis power stage for high-speed machining spindles, the unit converts three-phase mains power into regulated output that synchronizes motor torque and speed with CNC commands. Its design integrates tightly with SERCOS motion networks, allowing the controller to deliver precise velocity loops and rapid acceleration profiles required in industrial automation cells and metal-cutting centers. This operating role makes it suitable for spindle axes that must respond quickly to changing load conditions while maintaining stable speed during machining cycles.
Incoming supply flexibility is provided by the dual input range of 3 × AC 400 V, 50 Hz, ±15 % or 3 × AC 460 V, permitting installation on European and North American plant power. Continuous spindle torque delivery is supported by a rated output of 150 A, a current capacity that matches large-frame asynchronous spindle motors. Thermal management relies on a built-in fan, so cabinet airflow does not need to be specified separately. Command values reach the control electronics through the fiber-optic X4 port, identified as X4 optical waveguides, which maintains noise-immune data exchange in electrically harsh environments. Speed setpoints and status telegrams are formatted through the SERCOS interface, giving deterministic cycle times for coordinated multi-axis systems. The combination of current capacity, fan cooling, and fiber-optic communication supports sustained spindle operation in cabinets exposed to electrical noise and frequent speed changes.
The controller is supplied without an additional bleeder, so regenerative energy must be dissipated by the connected spindle motor or external braking hardware. It is also delivered without an additional encoder input, so position feedback is expected solely through the primary spindle encoder channel handled by the drive. This keeps the feedback arrangement focused on the main spindle signal path and avoids adding a secondary input circuit to the unit. The product is Series 2 and Version 3.
Frequently Asked Questions about RAC 2.3-150-460-L00-W1:
Q: What rated input voltage does the RAC 2.3-150-460-L00-W1 spindle drive controller support?
A: The RAC 2.3-150-460-L00-W1 supports a rated connection voltage of 3 x AC 400 V at 50 Hz, plus or minus 15%, or 3 x AC 460 V.
Q: How is the RAC 2.3-150-460-L00-W1 cooled during operation?
A: This model features internal blower cooling with a built-in fan for temperature management.
Q: What is the rated current capacity of the RAC 2.3-150-460-L00-W1 controller?
A: The RAC 2.3-150-460-L00-W1 is designed for a rated current of 150 A.
Q: Which interface is used for speed command on the RAC 2.3-150-460-L00-W1?
A: Speed command communication on this drive is handled via a SERCOS interface.
Q: Does the RAC 2.3-150-460-L00-W1 include an additional encoder input?
A: This model is configured without an additional encoder input.
