RAC 2.3-150-380-AP0-W1 Bosch Rexroth Indramat
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MPN: R911269179
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The Bosch Rexroth Indramat RAC 2.3-150-380-AP0-W1 is an AC Main Spindle Drive Controller from the RAC Spindle Drive Controllers series. It has a rated current of 150 Amps and a connection voltage of 3 x AC 400 Volts at 50-60Hz. The drive features an internal blower for cooling and an additional encoder input for spindle feedback.
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Product Description:
The RAC 2.3-150-380-AP0-W1 belongs to the RAC Spindle Drive Controllers series from Bosch Rexroth Indramat. It is an AC main spindle drive controller that conditions three-phase line power and delivers regulated output to spindle motors used in automated machining centers and similar equipment. Its role is to supply controlled motor current while supporting stable spindle operation during machining processes. Series code 2 and version 3 identify the unit within the wider RAC platform.
This controller operates from a rated connection of 3 x AC 400 V, 50–60 Hz, matching common factory mains. This input range suits standard industrial power systems used in machine cabinets and production equipment. At full load, it can supply a continuous current of 150 A, enabling direct coupling to high-power spindle motors without intermediate transformers. Thermal management is handled by an integrated internal blower, and the built-in fan maintains airflow through the heat sink so cabinet ventilation requirements stay modest. Command values arrive through an analog (±10 V) velocity channel, allowing straightforward linkage with PLC motion cards and other analog control sources. Field wiring terminates on the X4 9-pole connector, which groups control, reference, and monitoring lines in a single plug.
Position accuracy is supported by an additional encoder input for spindle feedback, and this port works with the drive’s native high-resolution INDRAMAT encoder format to close the speed loop directly inside the unit. Using encoder feedback at the drive level helps the spindle maintain stable rotation during load changes and improves response when commanded speed shifts occur. Because it is an AC main spindle drive controller, no separate axis amplifier is required for the motor it governs. The design comes without an additional bleeder, so dynamic braking energy must be absorbed by the connected spindle or an external resistor if rapid deceleration is required. This arrangement keeps power control and feedback processing within the same controller housing.
Frequently Asked Questions about RAC 2.3-150-380-AP0-W1:
Q: What voltage and frequency range does the RAC 2.3-150-380-AP0-W1 spindle drive require for operation?
A: The RAC 2.3-150-380-AP0-W1 is rated for a connection voltage of 3 x AC 400 V, operating at frequencies between 50 and 60Hz.
Q: What is the rated current capacity of the RAC 2.3-150-380-AP0-W1 drive controller?
A: This spindle drive controller supports a rated output current of 150 A.
Q: How is the RAC 2.3-150-380-AP0-W1 spindle drive controller cooled?
A: The RAC 2.3-150-380-AP0-W1 features an internal blower and built-in fan for cooling.
Q: Does the RAC 2.3-150-380-AP0-W1 support an additional encoder input for spindle feedback?
A: An additional encoder input is available on this model specifically for spindle feedback.
Q: What type of encoder is compatible with the RAC 2.3-150-380-AP0-W1 spindle drive?
A: A high-resolution INDRAMAT encoder is used with the RAC 2.3-150-380-AP0-W1 for precise control.
