RAC 2.2-200-380-A00-Z1 Bosch Rexroth Indramat
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MPN: R911234780
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The Bosch Rexroth Indramat RAC 2.2-200-380-A00-Z1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series. It features a rated connection voltage of 3 x AC 400 V at 50-60Hz and a rated current of 200 Amps. The unit is equipped with an internal blower for cooling and includes an additional bleeder.
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Product Description:
The RAC 2.2-200-380-A00-Z1 is a spindle drive controller manufactured by Bosch Rexroth Indramat within the RAC Spindle Drive Controllers series. It governs the rotation of main spindles in machining centers, lathes, and other metal-cutting machines by converting three-phase supply power into controlled voltage and current for the attached motor. Through this role, it links the CNC or PLC speed reference to the mechanical cutting process, allowing precise adjustment of spindle speed and torque during roughing, finishing, or threading operations. This operating method helps the spindle respond consistently when cutting conditions change during different parts of a machining cycle.
The controller connects to facility mains at 3 x AC 400 V, 50-60 Hz, a range suited for standard industrial distribution systems, and supplies up to 200 A for high-power cutting loads. Excess heat from the power stage is removed by a built-in fan, so no external air duct is required inside the cabinet. Speed commands arrive as an analog (±10 V) signal, a format common to both legacy and newer CNC platforms. The command input is wired through the dedicated X4 9-pole terminal, which separates the control connection from the main power wiring. This layout supports straightforward integration in machine cabinets where spindle power components and control signals must be routed in an orderly way.
The unit is classified as an AC main spindle drive controller, enabling both motoring and regenerative braking during spindle operation. Rapid deceleration is supported by an additional bleeder, which dissipates surplus DC-bus energy internally during braking events. The drive is supplied without an additional encoder input, so the primary resolver or encoder remains the only feedback channel used for spindle control. It belongs to RAC series 2 and is Version 2.
Frequently Asked Questions about RAC 2.2-200-380-A00-Z1:
Q: How is the RAC 2.2-200-380-A00-Z1 spindle drive controller cooled?
A: The RAC 2.2-200-380-A00-Z1 spindle drive controller features an internal blower with a built-in fan for effective cooling.
Q: What is the rated current for the RAC 2.2-200-380-A00-Z1?
A: This controller is designed to operate at a rated current of 200 A.
Q: What input voltage does the RAC 2.2-200-380-A00-Z1 require?
A: It accepts a rated connection voltage of 3 x AC 400 V at 50-60 Hz for industrial applications.
Q: What type of speed command input does this controller support?
A: The RAC 2.2-200-380-A00-Z1 uses an analogue speed command input of +/- 10 V.
Q: Is the RAC 2.2-200-380-A00-Z1 equipped with an additional bleeder?
A: An additional bleeder is integrated into this model to help dissipate excess energy.
