RAC 2.2-200-380-APD-W1 Bosch Rexroth Indramat
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MPN: R911248508
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The Bosch Rexroth Indramat RAC 2.2-200-380-APD-W1 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 operates with a rated current of 200 Amps. This controller uses an internal blower for cooling and has a high-resolution INDRAMAT encoder input for spindle feedback.
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Product Description:
The RAC 2.2-200-380-APD-W1 is an AC main spindle drive controller produced by Bosch Rexroth Indramat within the RAC Spindle Drive Controllers series. The unit governs torque and speed for machine-tool spindles by converting three-phase mains power into regulated output commanded by a CNC or PLC. Positioned as the power stage between the supply transformer and the spindle motor, it supports closed-loop control for high-precision machining, rapid acceleration, and consistent surface finish in industrial automation cells. It is suited to applications where spindle speed must remain stable as tool engagement and material removal rates change.
During operation, it accepts a mains supply of 3 x AC 400 V at 50–60 Hz, aligning with common factory distribution networks. The power electronics are rated for a continuous output of 200 A, allowing direct coupling to large spindle motors without an external booster. Heat produced at this current level is removed by a built-in air blower, so cabinet airflow planning remains straightforward. Velocity commands can be issued through an analog (±10 V) reference that the controller converts into torque demand. Where the host control issues position words instead of velocity commands, the unit uses a 16-bit parallel digital position setpoint channel for precise path execution. Rotor feedback comes from a high-resolution Indramat encoder, giving the regulator fine angular information for smooth machining.
Auxiliary wiring terminates at connector X4, 9 poles, allowing standard industrial plug-in hardware to be used. Braking energy is handled internally, and the drive is supplied without an additional bleeder, so no separate external resistor bank is required. Complex spindle-orientation cycles are supported by an additional encoder input for spindle feedback, letting the control loop compare motor and workpiece position in real time. That feedback path is useful when the machine must align the spindle to a known angular position before tool change or clamping. The unit is series 2 and version 2.
Frequently Asked Questions about RAC 2.2-200-380-APD-W1:
Q: What is the rated connection voltage for the RAC 2.2-200-380-APD-W1 spindle drive controller?
A: The RAC 2.2-200-380-APD-W1 operates with a rated connection voltage of 3 x AC 400 V at 50-60Hz.
Q: Does the RAC 2.2-200-380-APD-W1 include an additional encoder input for feedback?
A: This spindle drive controller provides an additional encoder input designed for spindle feedback.
Q: What type of encoder is supported by the RAC 2.2-200-380-APD-W1?
A: The RAC 2.2-200-380-APD-W1 utilizes a high-resolution INDRAMAT encoder for precise control.
Q: How is the RAC 2.2-200-380-APD-W1 spindle drive controller cooled?
A: An internal blower or built-in fan is used for cooling the RAC 2.2-200-380-APD-W1.
Q: What type of speed command input does the RAC 2.2-200-380-APD-W1 support?
A: The RAC 2.2-200-380-APD-W1 supports an analogue speed command input of +/- 10 V.
