R911232713 (RAC 2.2-250-380-A00-W1)

RAC Spindle Drive Controllers

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Bosch Rexroth's R911232713 (RAC 2.2-250-380-A00-W1) drive control system, designed for the primary spindle drive, offers precise positioning and speed control functions. This system frequently partners with the 1MB frameless and 2AD asynchronous motors, boasting power outputs ranging from 30 kW to 52 kW. Featuring a plug-and-play configuration, the R911232713 (RAC 2.2-250-380-A00-W1) directly connects to an appropriate three-phase power supply either of 400 V (50 Hz) or 460 V (60 Hz). A unique energy regeneration mechanism allows the system to convert kinetic energy into heat and reabsorb regenerative energy during motor braking. Equipped with a smart mains contactor, the system ensures no accidental startups during maintenance shutdowns. It also includes an emergency stop feature for immediate drive deceleration if internal malfunctions occur. The system guarantees constant power output over a wide speed range, even during speed transitions, making it an ideal main spindle drive for CNC machines. It comes with a one-year global warranty from Indramat USA.