RAC 2.2-150-380-AP0-W1 Bosch Rexroth Indramat
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MPN: R911237185
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The Bosch Rexroth Indramat RAC 2.2-150-380-AP0-W1 is an AC main spindle drive controller in the RAC Spindle Drive Controllers series. It has a rated current of 150 Amps and is designed for a 3-phase AC 400 V supply at 50-60Hz. This controller features high-resolution spindle feedback through an INDRAMAT encoder and uses an internal blower for cooling.
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Product Description:
The Bosch Rexroth Indramat RAC 2.2-150-380-AP0-W1 is an AC main spindle drive controller in the RAC Spindle Drive Controllers series. Positioned between the plant’s 400-volt mains and the spindle motor, it modulates torque and speed so that CNC machining centers hold target revolutions during cutting, milling, or grinding. Series 2 hardware supports closed-loop velocity regulation through embedded encoder interfaces, making the device suitable for automated machine tools that require fast response to dynamic load changes while maintaining dimensional accuracy.
Electrical integration is straightforward because the controller accepts 3 x AC 400 V, 50–60 Hz line power and is rated to deliver 150 A of three-phase output to the spindle. Motion commands are provided as an analog (±10 V) reference, so standard CNC control cards can vary spindle speed without a digital fieldbus. Heat generated by switching elements is removed with an internal blower, eliminating the need for separate cabinet air movers. Energy returned from rapid deceleration is absorbed inside the shared DC link only, and the unit is supplied without an additional bleeder, so external braking resistors are required if extended regenerative operation is expected.
Feedback and service wiring are routed through connector X4, 9 poles, allowing a single plug to carry enable, fault, and speed-monitor signals. Rotor position is detected by a high-resolution Indramat encoder, and the drive includes an additional encoder input dedicated to spindle feedback so that mechanical runout and thermal growth can be tracked independently of the motor sensor. Control parameters follow Version 2 configuration rules, aligning the device with other Series 2 components and maintaining matching scaling factors for gain, filter, and diagnostic structures used with this revision.
Frequently Asked Questions about RAC 2.2-150-380-AP0-W1:
Q: What cooling method is used in the RAC 2.2-150-380-AP0-W1 spindle drive controller?
A: The RAC 2.2-150-380-AP0-W1 is equipped with an internal blower and built-in fan for cooling.
Q: Does the RAC 2.2-150-380-AP0-W1 include an input for additional encoder feedback?
A: This model features an additional encoder input specifically for spindle feedback applications.
Q: What is the rated connection voltage for the RAC 2.2-150-380-AP0-W1?
A: The RAC 2.2-150-380-AP0-W1 is designed to operate with a rated connection voltage of 3 x AC 400 V, 50-60Hz.
Q: What kind of encoder is supported by the RAC 2.2-150-380-AP0-W1?
A: This spindle drive controller uses a high-resolution INDRAMAT encoder for precise control.
Q: What type of speed command input does the RAC 2.2-150-380-AP0-W1 support?
A: The speed command interface is analogue, accepting +/- 10 V signals for control.
