R911268722 (RAC 2.3-250-460-DP0-W1)

RAC Spindle Drive Controllers

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Bosch Rexroth's R911268722 (RAC 2.3-250-460-DP0-W1) model is an advanced automation equipment device, particularly adept at operating the main spindle drive in numerically controlled machine tools. With its additional encoder input, it capably provides spindle feedback or second motor feedback to the unit's internal position controller. Boasting a 16-bit parallel digital speed set-point, this model can accommodate long circuit lengths and low set-points. It operates with a rated connection voltage of 460V and can be directly connected to a 3-phase 3×AC 400~460V, 50/60 Hz power source with ±15% fluctuation. The model possesses a wide speed range, peaking at an output of 78 kW, and sustaining a continuous output of 65 kW. Integrated in the main controller housing is a cooling fan which utilizes either the control cabinet's internal or external air. With an IP 10 protection rating, the model safeguards against solid particles larger than 50 mm but does not offer liquid protection. Weighing approximately 125 kg, it is shipped globally with a one-year warranty.