RAC 2.2-150-380-A0I-Z1 Bosch Rexroth Indramat
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MPN: R911238598
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The Bosch Rexroth Indramat RAC 2.2-150-380-A0I-Z1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series. It features a rated connection voltage of 3-phase AC 400 V at 50-60 Hz, and a rated current of 150 Amps. This model is equipped with an internal blower, an incremental encoder output, and an interface terminal with 9 poles.
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Product Description:
The RAC 2.2-150-380-A0I-Z1 is a spindle drive controller from Bosch Rexroth Indramat in the RAC Spindle Drive Controllers series. It serves as the power conversion and regulation unit for machining center spindles, translating commands from a CNC or PLC into controlled rotational speed and torque during cutting operations. In machine tools, that role helps the spindle respond smoothly to changing load conditions during acceleration, steady running, and controlled deceleration. This model is hardware series 2 and version 2.
It operates from a rated connection of 3 x AC 400 V, 50-60 Hz, which matches common plant mains and is rectified and modulated to supply the spindle motor. A continuous output of 150 A allows the controller to drive large-frame asynchronous or synchronous spindles during heavy material removal. Heat from the power stage is removed by a built-in blower, so additional cabinet airflow is not required. Command wiring lands on terminal X4 with 9 poles, which groups low-level signals in one connector and keeps the control connection organized. The velocity reference is provided as an analog (±10 V) input, allowing compatible CNC systems to send proportional speed commands without extra interface electronics.
The unit ships with an additional bleeder, so excess DC-bus energy is dissipated internally instead of being returned to the mains during rapid spindle deceleration. It is supplied without an additional encoder input, so any second measuring system must be handled externally. Even so, the controller provides an incremental encoder output for spindle position signals used by the machine control during functions such as synchronous tapping or orientation. The product is classified as an AC main spindle drive controller, which identifies it as a controller intended specifically for spindle applications rather than for general axis positioning.
Frequently Asked Questions about RAC 2.2-150-380-A0I-Z1:
Q: What cooling method does the RAC 2.2-150-380-A0I-Z1 use?
A: The RAC 2.2-150-380-A0I-Z1 spindle drive controller is equipped with an internal blower and a built-in fan for cooling.
Q: What input voltage does the RAC 2.2-150-380-A0I-Z1 spindle drive controller require?
A: This drive controller accepts a rated connection voltage of 3 x AC 400 V at 50-60Hz.
Q: What type of speed command input is used on the RAC 2.2-150-380-A0I-Z1?
A: The drive features an analogue speed command input of +/- 10 V.
Q: Does the RAC 2.2-150-380-A0I-Z1 include an additional bleeder?
A: The RAC 2.2-150-380-A0I-Z1 is fitted with an additional bleeder.
Q: What is the rated current capacity of the RAC 2.2-150-380-A0I-Z1?
A: The rated current for this spindle drive controller is 150 A.
