R911265091 (RAC 4.1-300-460-A0D-W1)

RAC Spindle Drive Controllers

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The R911265091 (RAC 4.1-300-460-A0D-W1) is an advanced drive controller manufactured by Bosch Rexroth, specifically designed for asynchronous main spindle motors, Indramat 2AD series. It's an ideal choice for spindle drive operation due to its broad speed and continuous power range. With a weight of 150kg, features include an automatic internal control loop for precise spindle positioning. It can connect directly to a three-phase supply network, including an emergency shut-down function, at a voltage rating of 3 x AC 460V, 60Hz. Equipped with a built-in heat sink and cooler, it offers versatile cooling options inside or outside of the cooling cabinet. It provides interfaces for an analogue speed set-point, but lacks optional additional encoder and synchronization input. The controller can operate in temperatures between +5° and +45° Celsius, achieves peak output of 93kW, and uses an IP 10 protection type. Compliance with manufacturer’s instructions ensures optimum performance. Is suitable for installation at altitudes up to 1000m above sea level and the warranty is valid for one year from shipment.