RAC 2.2-200-460-DPD-W1 Bosch Rexroth Indramat
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MPN: R911246230
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The Bosch Rexroth Indramat RAC 2.2-200-460-DPD-W1 is an AC main spindle drive controller in the RAC Spindle Drive Controllers series. It is equipped with a high-resolution INDRAMAT encoder, features an additional encoder input for spindle feedback, and supports a digital position set-point. The controller has a rated connection voltage of 3 x AC 400 V at 50 Hz or 3 x AC 460 V, a rated current of 200 Amps, and is cooled by an internal blower.
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Product Description:
The RAC 2.2-200-460-DPD-W1 is an AC main spindle drive controller manufactured by Bosch Rexroth Indramat for the RAC Spindle Drive Controllers series. It is used in industrial automation to modulate spindle speed and deliver high continuous current to machine-tool spindles. This allows precise cutting, drilling, and milling cycles without requiring external motion modules. In a machine tool, it serves as the power stage between the incoming supply and the spindle motor so output speed can be regulated directly by the drive.
Electrically, the controller has a rated current of 200 A, enabling it to drive large-frame spindle motors without saturation. It accepts a three-phase supply of 3 x AC 400 V at 50 Hz within a ±15% tolerance, and it can also operate from 3 x AC 460 V when a higher line voltage is available. Heat generated by the power semiconductors is removed by an internal blower, so no external air ducting is required. The speed loop receives 16-bit parallel data, and the position channel uses words of the same width to keep command resolution consistent. Using the same word width for both channels helps maintain coordinated control between speed and position-related functions during spindle operation. Terminal X4 provides a 25-pole plug for user I/O, allowing access to command and diagnostic lines through one connection.
An auxiliary channel accepts spindle feedback from a high-resolution INDRAMAT encoder, allowing the drive to process detailed position data for fine surface-finish control. Command words enter through the digital position setpoint interface, coordinated with the speed channel to maintain sub-revolution accuracy during threading or contouring. Wiring for these signals lands on connector X4 with 25 poles, which supports direct connection with standard harnesses. The feedback path supports accurate tracking during operations that require tight speed regulation and positional alignment. The cooling structure is supplied without an additional bleeder, so dynamic braking energy must be handled by the mechanical load or an external resistor block.
Frequently Asked Questions about RAC 2.2-200-460-DPD-W1:
Q: What is the rated current capacity of the RAC 2.2-200-460-DPD-W1 spindle drive?
A: This drive controller operates with a rated current of 200 A, supporting powerful spindle operations in demanding environments.
Q: How is the RAC 2.2-200-460-DPD-W1 spindle drive cooled?
A: The RAC 2.2-200-460-DPD-W1 uses internal blower cooling with a built-in fan for effective thermal management during operation.
Q: What is the rated connection voltage range for the RAC 2.2-200-460-DPD-W1?
A: This model accepts a rated connection voltage of either 3 x AC 400 V at 50 Hz (+/- 15%) or 3 x AC 460 V.
Q: Does the RAC 2.2-200-460-DPD-W1 support an additional encoder input?
A: An additional encoder input is available on this drive for enhanced spindle feedback functions.
Q: What type of additional interface is featured on the RAC 2.2-200-460-DPD-W1 controller?
A: The drive provides a digital position set-point interface using a 16-bit parallel format.
