RAC 2.3-200-380-AY0-W1 Bosch Rexroth Indramat
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MPN: R911261561
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The Bosch Rexroth Indramat RAC 2.3-200-380-AY0-W1 is an AC Main Spindle Drive Controller from the RAC Spindle Drive Controllers series. It operates at a rated current of 200 Amps and is designed for 3-phase AC 400 V at 50 to 60 Hz. This controller features an internal blower, provides additional encoder and synchronous input, and uses an analogue speed command of plus or minus 10 Volts.
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Product Description:
The RAC 2.3-200-380-AY0-W1 is an AC main spindle drive controller produced by Bosch Rexroth Indramat as part of the RAC Spindle Drive Controllers series. The device converts incoming three-phase power, conditions motor current, and processes encoder signals so that machine tools can position and accelerate their primary spindles with repeatable accuracy. In an automation cell, it functions as the link between the CNC's motion commands and the mechanical output of the high-speed spindle motor. This role allows the spindle to follow commanded speed changes and orientation commands during cutting and positioning tasks.
The controller operates from a nominal line supply of 3 x AC 400 V 50–60 Hz, matching standard plant power without a transformer. Its bus and output stages are rated for up to 200 A, allowing it to drive large synchronous or induction spindles during heavy metal-cutting cycles. Thermal management is handled by an internal blower, which directs cabinet air across the heat sink so no external ducting is required. Speed references enter on an analog control channel that accepts an analog ±10 V signal, allowing straightforward integration with legacy CNC hardware. Rotor position is resolved by an incremental encoder (JL), and the feedback leads terminate on the front-panel X4 9-pole interface, which keeps wiring concentrated at a single pluggable connector.
Because the unit is supplied without an additional bleeder, regenerated energy is dissipated through the common DC bus or the motor itself. For multi-axis machines that require spindle-synchronized positioning, the drive provides an additional encoder and synchronous input; this channel supports lead spindle feedback so the controller can align spindle angle with auxiliary axes during threading or tool changes. The hardware belongs to series 2 and is released as version 3. This revision identifies the controller build used for this model.
Frequently Asked Questions about RAC 2.3-200-380-AY0-W1:
Q: Does the RAC 2.3-200-380-AY0-W1 spindle drive controller support additional encoder inputs?
A: The RAC 2.3-200-380-AY0-W1 supports both additional encoder and synchronous inputs for feedback integration.
Q: How is the RAC 2.3-200-380-AY0-W1 spindle drive controller cooled?
A: This model uses an internal blower or built-in fan for cooling the drive controller.
Q: What is the rated connection voltage of the RAC 2.3-200-380-AY0-W1?
A: The rated connection voltage for this spindle drive controller is 3 x AC 400 V at 50 to 60 Hz.
Q: What type of speed command input does the RAC 2.3-200-380-AY0-W1 accept?
A: The speed command signal for this model is analog, operating within a +/- 10 V range.
Q: Does the RAC 2.3-200-380-AY0-W1 come with an additional bleeder?
A: The RAC 2.3-200-380-AY0-W1 operates without an additional bleeder unit.
