RAC 2.2-200-460-A0I-Z1 Bosch Rexroth Indramat
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MPN: R911254295
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The Bosch Rexroth Indramat RAC 2.2-200-460-A0I-Z1 is an AC Main Spindle Drive Controller in the RAC Spindle Drive Controllers series. This drive controller features a rated connection voltage of 3 x AC 400 V or 3 x AC 460 V, supports a rated current of 200 Amps, and provides cooling via an internal blower. It is equipped with an incremental encoder output and an interface terminal with 9 poles.
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Product Description:
The RAC 2.2-200-460-A0I-Z1 spindle drive controller is produced by Bosch Rexroth Indramat for the RAC Spindle Drive Controllers series. It regulates the rotational speed of main spindle motors in automated machining and grinding installations, linking the numerical control to the motor power stage. By converting reference values from the machine control into controlled three-phase output, the unit maintains torque accuracy during cutting, drilling, and milling cycles where spindle speed stability is critical. This operating role makes it suitable for machine processes that depend on steady speed control during changing load conditions.
The unit accepts a supply of 3 x AC 400 V, 50 Hz, +/-15% or 3 x AC 460 V, so it can operate on both European and North American power systems. With this input, it can provide 200 A of continuous motor current, which supports high-inertia spindles during acceleration and sustained operation. Heat from the power stage is removed by an internal blower with a built-in fan, which eliminates the need for extra cabinet cooling hardware. As an AC main spindle drive controller, the regulation loops are tuned for rapid speed changes on the machining spindle. A command range of analog (±10 V) carries the requested speed signal from the CNC or PLC.
Field wiring uses the X4 9-pole terminal strip, which groups control, enable, and monitoring leads on a detachable plug. For rapid deceleration, the drive is supplied with an additional bleeder, so braking energy can be dissipated without an external braking resistor assembly. Encoder options are limited because the unit comes without an additional encoder input; however, feedback can still be forwarded through the built-in incremental encoder output. This variant is series 2 and version 2. The arrangement supports signal handling and braking functions within the controller without adding separate external modules for those tasks.
Frequently Asked Questions about RAC 2.2-200-460-A0I-Z1:
Q: What rated connection voltage does the RAC 2.2-200-460-A0I-Z1 spindle drive controller support?
A: The RAC 2.2-200-460-A0I-Z1 can operate with a rated connection voltage of either 3 x AC 400 V at 50 Hz (±15%) or 3 x AC 460 V.
Q: What is the rated current of the RAC 2.2-200-460-A0I-Z1 spindle drive controller?
A: This drive controller has a rated current of 200 A, supporting high power spindle operations.
Q: What type of cooling system is built into the RAC 2.2-200-460-A0I-Z1?
A: The RAC 2.2-200-460-A0I-Z1 uses an internal blower with a built-in fan for cooling.
Q: Does the RAC 2.2-200-460-A0I-Z1 spindle drive controller include an additional bleeder?
A: The RAC 2.2-200-460-A0I-Z1 includes an additional bleeder for energy dissipation.
Q: What additional interface is provided on the RAC 2.2-200-460-A0I-Z1 controller?
A: This model features an incremental encoder output as its additional interface.
