RAC 2.2-200-460-A00-Z1 Bosch Rexroth Indramat
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MPN: R911234783
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The Bosch Rexroth Indramat RAC 2.2-200-460-A00-Z1 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 Hz or 3 x AC 460 V, supports a rated current of 200 Amps, and uses an internal blower for cooling. The controller includes an interface terminal X4 with 9 poles and accepts an analog speed command of +/- 10 V.
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Product Description:
The RAC 2.2-200-460-A00-Z1 is an AC main spindle drive controller manufactured by Bosch Rexroth Indramat and supplied within the RAC Spindle Drive Controllers series. It regulates the speed and torque of machine-tool spindles by converting three-phase mains power into a controlled output that follows an analog velocity reference. This closed-loop control allows precise spindle positioning and rapid acceleration in automated machining centers and related industrial equipment. This type of control helps the spindle respond smoothly to command changes during drilling, milling, and other speed-sensitive processes. It is suited to applications where stable spindle speed affects surface finish and process repeatability.
The unit is cooled by a built-in air blower that moves air across its power electronics, eliminating the need for external ducting. It accepts line supplies of 3 x AC 400 V (±15%) or 3 x AC 460 V, so it can be connected to common 50 Hz factory networks without a step-up transformer. A continuous output capability of 200 A supports high-power spindle motors used for heavy material removal. Speed is commanded through a ±10 V analog speed command. This allows simple integration with legacy CNC control cards and related control hardware. For dynamic braking, the drive uses an additional bleeder to dissipate regenerated energy and keep the DC link voltage within safe limits during rapid deceleration.
The controller is supplied without an additional encoder input, so primary position feedback is handled through its standard resolver channel or by an external CNC loop. Field wiring is routed through the X4 9-pole interface terminal, which groups logic power, reference signals, and interlocks on one connector for organized access. The product is in Series 2 and Version 2. This layout supports orderly connection of command and monitoring circuits in machine installations where the spindle drive must interact with interlocks and control signals.
Frequently Asked Questions about RAC 2.2-200-460-A00-Z1:
Q: What rated connection voltage does the RAC 2.2-200-460-A00-Z1 support?
A: The RAC 2.2-200-460-A00-Z1 has a rated connection voltage of 3 x AC 400 V at 50 Hz, with a +/-15% tolerance, or 3 x AC 460 V.
Q: How is the RAC 2.2-200-460-A00-Z1 spindle drive controller cooled?
A: An internal blower and built-in fan are used for cooling in this spindle drive controller.
Q: What is the rated current capacity of the RAC 2.2-200-460-A00-Z1?
A: This model supports a maximum rated current of 200 A.
Q: What type of speed command interface does the RAC 2.2-200-460-A00-Z1 use?
A: The speed command interface operates with analogue signals in the range of +/- 10 V.
Q: Does the RAC 2.2-200-460-A00-Z1 come with an additional bleeder?
A: An additional bleeder is included with this spindle drive controller.
