RAC 2.2-250-380-L00-W1 Bosch Rexroth Indramat
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MPN: R911240714
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The Bosch Rexroth Indramat RAC 2.2-250-380-L00-W1 is an AC main spindle drive controller that belongs to the RAC Spindle Drive Controllers series. It features a rated current of 250 Amps, operates at 3-phase 400 V with 50-60Hz, and uses an internal blower for cooling. This controller includes an X4 optical waveguide interface terminal and supports SERCOS interface for speed command.
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Product Description:
The RAC 2.2-250-380-L00-W1 is produced by Bosch Rexroth Indramat for the RAC Spindle Drive Controllers series. Positioned between the plant mains and a high-speed spindle motor, it regulates voltage and current so the spindle can follow commanded speed profiles with repeatable accuracy. In industrial automation cells, the unit supports milling, drilling, and grinding processes that require dynamic torque control and rapid speed changes. This helps maintain process stability when spindle load changes quickly during cutting. It also connects with Rexroth CNC platforms through fiber-optic communication for coordinated spindle control.
Its supply side accepts 3 x AC 400 V at 50 to 60 Hz, making it suitable for common factory power systems. The power stage can continuously deliver 250 A, which supports large-frame synchronous or induction spindle motors. Heat generated in the power electronics is removed by an internal blower, so separate external air ducts are not required. Control and diagnostic data pass through the X4 optical waveguide port, whose light-based link helps resist electromagnetic interference across the cabinet. That arrangement also keeps the control section separated from electrical noise created by the power stage. Speed commands are exchanged through the SERCOS interface, allowing deterministic response during tasks such as tool changes and thread cutting.
The unit is supplied without an additional bleeder resistor, so an external resistor may be required when braking energy exceeds the drive's internal absorption capacity. It is also supplied without an additional encoder input, so the standard spindle feedback channel is used for position verification. This layout keeps the hardware focused on the standard spindle feedback path. The product is classified as an AC main spindle drive controller. The controller is released as Version 2.
Frequently Asked Questions about RAC 2.2-250-380-L00-W1:
Q: What series does the RAC 2.2-250-380-L00-W1 belong to?
A: The RAC 2.2-250-380-L00-W1 is part of the RAC Spindle Drive Controllers series.
Q: What type of interface terminal does the RAC 2.2-250-380-L00-W1 use?
A: This model uses an X4 optical waveguides interface terminal for connectivity.
Q: What is the rated connection voltage of the RAC 2.2-250-380-L00-W1?
A: The rated connection voltage for this controller is 3 x AC 400 V, 50-60Hz.
Q: What cooling method is used in the RAC 2.2-250-380-L00-W1 drive controller?
A: The RAC 2.2-250-380-L00-W1 features internal blower cooling with a built-in fan.
Q: What is the rated current of the RAC 2.2-250-380-L00-W1?
A: The rated current for this spindle drive controller is 250 A.
