R911267162 (RAC 3.5-100-460-D0I-W1-220)

RAC Spindle Drive Controllers

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The Bosch Rexroth R911267162 (RAC 3.5-100-460-D0I-W1-220), a primary spindle drive controller, has a 100 A current rating and is designed to digitally control Indramat 2AD main spindle motors and 1MB frameless spindle motors. Handling asynchronous motors, the product can maintain a continuous power output of 10 to 30 kW at the motor shaft. This controller provides constant power and high stiffness, making it ideal for machine tool spindle drives. It operates at a rated supply voltage of 3 x AC 380 to 460 V, integrates both emergency-stop circuits and mains contactor, and has internal position control loop that is regulated using motor feedback. During installation, required parameters are established using the keypad on the controller's control panel. This product features a 16-bit parallel speed set-point and an interface for incremental encoder input. It can be cooled via air from the outside or inside of the control cabinet, with a maximum ambient temperature tolerance of 45 degrees Celsius.