RAC 2.3-200-380-AP0-Z1 Bosch Rexroth Indramat
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MPN: R911265168
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The Bosch Rexroth Indramat RAC 2.3-200-380-AP0-Z1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series. It operates with a rated connection voltage of 3x AC 400 V at 50-60Hz and a rated current of 200 Amps. The controller features a built-in fan for cooling, an additional bleeder, and an extra encoder input for spindle feedback.
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Product Description:
The RAC 2.3-200-380-AP0-Z1 is an AC main spindle drive controller produced by Bosch Rexroth Indramat and supplied within the RAC Spindle Drive Controllers series. Acting as the power interface between a CNC control and a high-speed spindle motor, it converts fixed mains power into a variable-frequency output that supports cutting, grinding, or drilling tasks. By coordinating motor torque with digital motion commands, the unit lets an automation system execute precise machining cycles while helping protect the motor and the supply network. It is intended for spindle applications that require stable speed control during changing cutting loads.
This controller operates from 3 × AC 400 V, 50-60 Hz utility power, so it can be wired directly to many plant distribution buses. The power bridge carries a continuous load of 200 A, enabling fast acceleration of large spindle rotors. Thermal loading is controlled by a built-in blower that forces cabinet air across the heat sink. Spindle speed is set through a ±10 V analog reference, allowing straightforward integration with both legacy and modern numerical controls. All low-level signals reach the electronics through the X4, 9-pole terminal, which keeps control wiring organized. Closed-loop regulation relies on a high-resolution INDRAMAT encoder, which provides detailed velocity data so the drive can hold the commanded spindle speed during heavy cuts and speed changes.
An additional encoder input for spindle feedback is included, letting the machine monitor a secondary sensor for threading or orientation routines. The drive is equipped with an additional bleeder; the internal resistor converts regenerative energy into heat, which helps prevent DC-bus overvoltage when the spindle decelerates quickly. The unit is version 3 in the 2.x family. This revision indicates compatibility with current RAC system layouts and operating behavior used in the series.
Frequently Asked Questions about RAC 2.3-200-380-AP0-Z1:
Q: How is the RAC 2.3-200-380-AP0-Z1 spindle drive controller cooled?
A: The RAC 2.3-200-380-AP0-Z1 is equipped with an internal blower for its cooling system.
Q: What is the rated current capacity of the RAC 2.3-200-380-AP0-Z1?
A: This model supports a rated current of 200 A for spindle drive applications.
Q: Does the RAC 2.3-200-380-AP0-Z1 provide an option for additional spindle feedback?
A: An additional encoder input is included to enable spindle feedback on this unit.
Q: What speed command interface does the RAC 2.3-200-380-AP0-Z1 utilize?
A: The speed command interface for this unit uses an analogue signal of +/- 10 V.
Q: What is the rated connection voltage specification for the RAC 2.3-200-380-AP0-Z1?
A: This spindle drive controller is rated for a 3-phase AC connection at 400 V and 50-60Hz.
