RAC 2.2-150-380-A00-Z1 Bosch Rexroth Indramat
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MPN: R911234779
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The Bosch Rexroth Indramat RAC 2.2-150-380-A00-Z1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series. It operates with a rated current of 150 Amps and a rated connection voltage of 3-phase AC 400 V at 50 to 60 Hz. The controller features internal blower cooling and includes an interface terminal X4 with 9 poles.
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Product Description:
The RAC 2.2-150-380-A00-Z1 spindle drive controller is built by Bosch Rexroth Indramat and belongs to the RAC Spindle Drive Controllers series. As an AC main spindle drive controller, it interfaces between a CNC or PLC and the motorized spindle, converting commanded velocity signals into regulated three-phase output. Within automated machining centers, this unit governs spindle acceleration, steady-state speed, and controlled deceleration. Stable spindle regulation helps maintain repeatable cutting conditions during drilling, milling, and similar machining operations while also limiting stress on the connected motor and supply network. This behavior is important when the machine changes between low-speed torque demand and high-speed finishing passes, where smooth transitions help protect tools and workpieces.
To address high-power spindles, the drive can deliver a continuous output of 150 A and operates from a mains supply of 3 x AC 400 V, 50/60 Hz. Its velocity setpoint is accepted as an analog (+/- 10 V) differential signal, allowing straightforward integration with analog CNC channels. For thermal management, a built-in blower circulates air through the chassis, eliminating the need for external cooling ducts. Dynamic braking energy is absorbed by an additional bleeder, which helps reduce DC-bus overvoltage during rapid stops. Field wiring for logic and I/O is concentrated on connector X4 with 9 poles, which groups enable, fault, and monitoring contacts in one location.
Feedback handling is limited because the unit is supplied without an additional encoder input. That arrangement suits spindle applications that use a single primary feedback channel and do not require a separate auxiliary encoder connection at the controller. It also keeps the signal structure simpler inside the cabinet when only the main spindle encoder is needed for closed-loop operation. The controller is Series 2 and Version 2. These generational identifiers indicate the product generation used for this model.
Frequently Asked Questions about RAC 2.2-150-380-A00-Z1:
Q: What cooling method does the RAC 2.2-150-380-A00-Z1 utilize?
A: The RAC 2.2-150-380-A00-Z1 spindle drive controller uses a built-in internal blower for cooling.
Q: What is the rated current of the RAC 2.2-150-380-A00-Z1 spindle drive controller?
A: This controller operates with a rated current of 150 A, making it suitable for high-power spindle applications.
Q: What connection voltage is required to operate the RAC 2.2-150-380-A00-Z1?
A: The RAC 2.2-150-380-A00-Z1 is designed to accept a connection voltage of 3 x AC 400 V at 50-60 Hz.
Q: Is an additional bleeder included with the RAC 2.2-150-380-A00-Z1?
A: An additional bleeder is included with the RAC 2.2-150-380-A00-Z1 model.
Q: What type of speed command input does the RAC 2.2-150-380-A00-Z1 accept?
A: The speed command for this spindle drive controller is an analogue signal in the range of +/- 10 V.
