R911232713
The R911232713 (RAC 2.2-250-380-A00-W1), a product of Bosch Rexroth Indramat, is a drive control system primarily used for the main spindle drive. Known for its precision in position and speed control operations, it is frequently integrated with the 1MB frameless and 2AD asynchronous motors, both of which have power outputs ranging between 30 kW and 52 kW. The device has a plug-and-play configuration, making it easy to connect to a suitable three-phase power supply, either at 400V (50 Hz) or a 460 V (60 Hz). An added advantage is its capability to absorb regenerative energy, which is converted from the motor's kinetic energy during braking and fed back to the main power unit.
Equipped with an intelligent mains contactor, the R911232713 (RAC 2.2-250-380-A00-W1) enhances safety by preventing unintended drive startups during shutdowns for maintenance, which could otherwise lead to accidents or equipment damage. It also features an emergency stop function that immediately halts or decelerates connected drives in the event of internal electronic malfunctions. Furthermore, its highly responsive control increases accuracy in rotor position management, and its wide speed range doesn’t compromise power output, ensuring steady performance even with changing speeds. This makes the R911232713 (RAC 2.2-250-380-A00-W1) an ideal drive controller for the main spindle drive in CNC machines.
