RAC 2.3-150-380-A00-W1 Bosch Rexroth Indramat
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MPN: R911256458
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The Bosch Rexroth Indramat RAC 2.3-150-380-A00-W1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series. It operates with a rated connection voltage of 3 x AC 400 V at 50-60Hz and a rated current of 150 Amps. This controller uses an internal blower for cooling and features an analog speed command input of plus or minus 10 Volts.
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Product Description:
The RAC 2.3-150-380-A00-W1 is an AC main spindle drive controller produced by Bosch Rexroth Indramat and supplied in the RAC Spindle Drive Controllers series. The module converts fixed mains power into regulated three-phase output and supervises torque and velocity loops for motorized spindles used in CNC machining, grinding, and drilling equipment. Its enclosure, integrated cooling, and control electronics allow panel installation where it serves as the link between the numerical control and a high-speed spindle motor. This layout supports compact machine cabinets while keeping the drive close to the spindle control wiring and status signals.
Its input stage accepts 3-phase 400 V at 50–60 Hz, matching standard industrial plant supplies for spindle systems. The power section is rated for a continuous output of 150 A, providing the current needed for rapid acceleration and sustained cutting loads. Thermal energy is removed by an internal blower, so the unit does not rely on separate external cooling hardware. Speed reference is provided through a differential command of ±10 V analog, allowing direct connection to conventional CNC control circuits. This combination supports stable speed control during load changes caused by tool engagement, material variation, and commanded speed shifts.
The controller has no additional bleeder, so regenerated braking energy must be handled by the connected spindle motor or by external hardware. It also has no auxiliary encoder input, which leaves the primary feedback path to the main spindle encoder through the drive system. User wiring is brought to an X4 9-pole terminal that carries enable, ready, and fault signals for machine interlocks and status exchange. The electronics are identified as series 2 and version 3. These identifiers place the unit within a specific product generation and support consistent matching with the intended control and power stage arrangement.
Frequently Asked Questions about RAC 2.3-150-380-A00-W1:
Q: How is the RAC 2.3-150-380-A00-W1 spindle drive controller cooled?
A: The RAC 2.3-150-380-A00-W1 features internal blower cooling with a built-in fan.
Q: What is the rated current for the RAC 2.3-150-380-A00-W1 spindle drive controller?
A: This model is designed for a rated current of 150 A, supporting high power spindle operations.
Q: What is the required supply voltage for the RAC 2.3-150-380-A00-W1?
A: The RAC 2.3-150-380-A00-W1 requires a rated connection voltage of 3 x AC 400 V at 50-60 Hz.
Q: What type of speed command input does the RAC 2.3-150-380-A00-W1 support?
A: Speed commands are provided via an analogue input with a range of +/- 10 V on this controller.
Q: Does the RAC 2.3-150-380-A00-W1 include an additional bleeder?
A: This model does not include an additional bleeder and operates without extra external energy dissipation components.
