RAC 2.3-200-380-L00-W1/S002 Bosch Rexroth Indramat
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MPN: R911267288
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The Bosch Rexroth Indramat RAC 2.3-200-380-L00-W1/S002 is an AC Main Spindle Drive Controller from the RAC Spindle Drive Controllers series. It has a rated connection voltage of 3 x AC 400 V at 50-60Hz and delivers a rated current of 200 Amps. This controller uses an internal blower for cooling and features an X4 optical waveguide interface terminal.
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Product Description:
Bosch Rexroth Indramat's RAC 2.3-200-380-L00-W1/S002 belongs to the RAC Spindle Drive Controllers series. It functions as a closed-loop regulator for main spindle motors in CNC and other automated machining centers. By translating digital velocity commands into three-phase output for induction or synchronous spindles, the unit enables programmable speed profiles, rapid acceleration, and stable torque during cutting or grinding operations. This type of control helps the spindle hold the commanded speed when cutting loads change during operation.
The model is classified as an AC Main Spindle Drive Controller, so its control algorithms and power stage are tuned for continuous high-speed rotation rather than incremental positioning. Thermal management is handled by an internal blower with a built-in fan, which circulates cabinet air through the heat sink to maintain semiconductor junction temperatures within safe limits. The power section connects to a mains supply of 3 x AC 400 V, 50-60 Hz, matching common European plant distribution grids, and can deliver a steady output of 200 A to the spindle motor windings. Velocity setpoints arrive via the SERCOS interface, allowing deterministic fiber-optic communication with the machine controller while supporting parameter downloads, diagnostics, and synchronized multi-axis motion. This supports stable command transfer during rapid spindle speed changes.
I/O for higher-level control is present on the X4, optical waveguides terminal, which isolates drive electronics from electrical noise typical of high-power environments. Because the unit is supplied without an additional bleeder, excess regenerative energy must be dissipated by the DC bus or an external resistor in applications with frequent deceleration. It is also configured without an additional encoder input, so spindle position feedback is expected solely through the main motor encoder monitored by the SERCOS loop. The drive is Version 3 and uses the series 2 hardware platform.
Frequently Asked Questions about RAC 2.3-200-380-L00-W1/S002:
Q: What is the rated current capacity of the RAC 2.3-200-380-L00-W1/S002 spindle drive controller?
A: The RAC 2.3-200-380-L00-W1/S002 has a rated current of 200 A, allowing it to handle high power requirements for spindle drive applications.
Q: What is the input voltage specification for the RAC 2.3-200-380-L00-W1/S002?
A: This model provides a rated connection voltage of 3 x AC 400 V at 50-60 Hz.
Q: How is the RAC 2.3-200-380-L00-W1/S002 cooled?
A: It uses an internal blower and built-in fan for cooling, ensuring proper heat management during operation.
Q: What type of interface is used for speed commands on the RAC 2.3-200-380-L00-W1/S002?
A: The RAC 2.3-200-380-L00-W1/S002 utilizes the SERCOS interface for speed command control.
Q: What kind of interface terminal does the RAC 2.3-200-380-L00-W1/S002 spindle drive controller have?
A: This model is equipped with an X4 optical waveguide terminal for communication interface.
