RAC 2.3-200-460-A00-Z1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911256150
Ask for AvailabilityThe Bosch Rexroth Indramat RAC 2.3-200-460-A00-Z1 is an AC Main Spindle Drive Controller from the RAC Spindle Drive Controllers series. It supports a rated connection voltage of 3 x AC 400 V at 50 Hz, or 3 x AC 460 V, with a rated current of 200 Amps. This controller features internal blower cooling and an analogue speed command input of +/- 10 V.
Internal Product Review
The RAC 2.3-200-460-A00-Z1 is an AC main spindle drive controller that stands out for dependable spindle control in demanding machine applications. Internal blower cooling and a 200 A rated current support stable thermal performance and strong output under sustained load. A 3 x AC 400 V to 460 V input range with analog ±10 V speed command makes this controller a strong fit for established industrial drive systems.
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Product Description:
The RAC 2.3-200-460-A00-Z1 is an AC main spindle drive controller from Bosch Rexroth Indramat in the RAC Spindle Drive Controllers series. As a Version 3 unit within Series 2, it regulates the speed and torque of high-power machine-tool spindles by converting three-phase mains power into a tightly controlled output for induction or synchronous motors used in industrial automation. By accepting analog velocity references and providing rapid current-loop response, the controller permits precise surface finishing, drilling, and milling operations where stable spindle behavior is critical. This arrangement supports steady spindle performance during changing cutting loads.
This controller is fed from a supply of 3 × AC 400 V at 50 Hz with a tolerance of ±15 %, or alternatively from 3 × AC 460 V sources, allowing installation in European or North American mains environments without transformer adaptation. At a rated output of 200 A, the current-regulation stage can deliver the high magnetizing and acceleration currents required by large spindle motors while maintaining thermal limits through the unit’s monitoring circuits. The AC main spindle architecture relies on field-oriented control to translate the incoming power into a smooth, low-ripple armature current that tracks the analog speed command. That control method helps maintain consistent spindle speed during demanding machining cycles.
Speed demand enters through the differential input that interprets analog ±10 V signals, eliminating the need for fieldbus adapters in legacy retrofits. Control wiring and sensor feedback land on the X4 9-pole terminal, which helps simplify cabinet layout. Excess braking energy is dissipated by an additional bleeder, so external resistor banks are not required for deceleration cycles. Heat produced by the power semiconductors is removed by an internal blower, enabling continuous operation without external ducting. The unit omits an additional encoder input because its primary spindle feedback is managed internally.
