RAC 2.3-200-380-A0I-W1 Bosch Rexroth Indramat
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MPN: R911256127
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The Bosch Rexroth Indramat RAC 2.3-200-380-A0I-W1 is an AC Main Spindle Drive Controller from the RAC Spindle Drive Controllers series. It features a rated connection voltage of 3 x AC 400 V at 50-60Hz and operates with a rated current of 200 Amps. This device includes an incremental encoder output and uses internal blower cooling.
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Product Description:
The RAC 2.3-200-380-A0I-W1 spindle drive controller is manufactured by Bosch Rexroth Indramat and belongs to the RAC Spindle Drive Controllers series. Classified as an AC main spindle drive unit, it receives velocity references from the machine CNC and delivers controlled three-phase power to the motor, allowing precise speed regulation during milling, turning, or grinding operations on automated production lines. The unit is built in hardware version 3 and follows the established RAC control architecture for this product line.
Internally, the power stage accepts a line supply of 3 x AC 400 V, 50-60 Hz. This voltage range matches standard plant utilities, so no isolation transformer is required. At full load, the unit can draw a continuous 200 A, which sets the maximum continuous spindle torque available without overheating the power semiconductors. Heat generated at this current is removed by an internal blower that channels air through the heat sink to keep module temperature within the permitted operating range. The speed reference is received as an analog (±10 V) signal, allowing direct connection to common CNC control cards. All low-level signals, including this reference, enter through the X4 9-pole terminal block, which simplifies field wiring.
During regenerative events, the drive relies on the shared DC bus and is supplied without an additional bleeder, so excess kinetic energy must be absorbed by external line-side modules. Position feedback synchronization is supported through an incremental encoder output that mirrors spindle position to auxiliary automation devices such as tool changers. Because the unit is delivered without an additional encoder input, closed-loop spindle control is handled by the main feedback channel only, which keeps the signal layout simple. RAC platform release 2 sets the mounting dimensions for this version.
Frequently Asked Questions about RAC 2.3-200-380-A0I-W1:
Q: What is the rated connection voltage for the RAC 2.3-200-380-A0I-W1 spindle drive controller?
A: The RAC 2.3-200-380-A0I-W1 operates with a rated connection voltage of 3 x AC 400 V at 50-60Hz.
Q: How is the RAC 2.3-200-380-A0I-W1 cooled during operation?
A: This model is equipped with an internal blower and built-in fan for cooling.
Q: What is the rated current of the RAC 2.3-200-380-A0I-W1?
A: The drive controller features a rated current of 200 A.
Q: What type of speed command input does the RAC 2.3-200-380-A0I-W1 support?
A: The speed command on this controller is controlled via an analogue signal of +/- 10 V.
Q: Is the RAC 2.3-200-380-A0I-W1 supplied with an additional bleeder?
A: The RAC 2.3-200-380-A0I-W1 does not include an additional bleeder.
