R911232711 (RAC 2.2-200-380-A00-W1)

RAC Spindle Drive Controllers

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The Bosch Rexroth R911232711 (RAC 2.2-200-380-A00-W1) is a top-quality main spindle drive controller known for its outstanding position and speed control of industrial servo motors. Ideally paired with 1MB frameless and 2AD asynchronous motors, this device harnesses output power ranging from 30 to 52 kW and connects directly to a three-phase power supply. Remarkably, it can absorb and recycle the regenerative energy created during motor braking. Additional features include an integrated mains contactor for preventing unintentional startups and an emergency stop function for immediate halting via direct current braking during power outages. Offering a superior positioning control thanks to high stiffness and extensive speed range over constant power output, this device is frequently used in CNC machine main spindle drives. Incorporated heatsink and air duct systems ensure optimum temperature control, while a programming module stores parameters during motor commissioning. Includes a one-year global warranty courtesy of Indramat USA.