RAC 2.3-200-380-A00-W1 Bosch Rexroth Indramat
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MPN: R911256128
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The Bosch Rexroth Indramat RAC 2.3-200-380-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 to 60 Hz and a rated current of 200 Amps. The controller uses an internal blower for cooling and accepts a speed command through a +/- 10 V analog signal.
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Product Description:
The RAC 2.3-200-380-A00-W1 is an AC main spindle drive controller manufactured by Bosch Rexroth Indramat in the RAC Spindle Drive Controllers series. Installed between the plant’s three-phase mains and a high-speed machine-tool spindle, it converts line power into a regulated output that keeps rotational speed constant under changing cut forces. By accepting analog speed references from a CNC, the unit modulates voltage and frequency so that milling, grinding, or drilling heads maintain programmed surface speed without manual adjustment. That control behavior is useful in machining processes where spindle load changes quickly as the tool enters or exits the material.
The controller is energized from a three-phase supply rated at 3 × AC 400 V, 50-60 Hz, eliminating the need for intermediate transformers in most production facilities. A continuous output capability of 200 A supports large-frame spindle motors that demand rapid acceleration. Heat generated by the power electronics is removed by an internal blower, so no external ducting is required. Spindle velocity is commanded through a ±10 V analog input, making the unit compatible with both legacy and newer control systems. Low-level control wiring terminates on the X4 9-pole terminal, which separates signal conductors from the high-current bus to reduce electromagnetic interference. This layout also helps keep control wiring organized inside the cabinet.
The drive is supplied without an additional bleeder, so regenerative energy is handled by the standard braking components in the cabinet. It is also shipped without an additional encoder input, indicating that a single feedback channel is expected. The unit follows Series 2 design conventions and is built as Version 3, while the housing keeps the mechanical footprint used by earlier RAC units.
Frequently Asked Questions about RAC 2.3-200-380-A00-W1:
Q: What is the rated connection voltage for the RAC 2.3-200-380-A00-W1 spindle drive controller?
A: This model has a rated connection voltage of 3 x AC 400 V, 50-60Hz for reliable spindle drive operation.
Q: What rated current does the RAC 2.3-200-380-A00-W1 support?
A: The RAC 2.3-200-380-A00-W1 offers a rated current of 200 A for demanding spindle applications.
Q: What type of speed command input does the RAC 2.3-200-380-A00-W1 accept?
A: Speed control is managed via an analogue signal input of +/- 10 V on this spindle drive controller.
Q: How is the RAC 2.3-200-380-A00-W1 spindle drive controller cooled?
A: An internal blower with a built-in fan cools the RAC 2.3-200-380-A00-W1, eliminating the need for external cooling systems.
Q: Does the RAC 2.3-200-380-A00-W1 have an additional bleeder?
A: This model does not include an additional bleeder, simplifying its installation and setup.
