RAC 2.2-150-460-A0I-Z1
The Bosch Rexroth Indramat RAC 2.2-150-460-A0I-Z1 drive controller is part of the RAC Spindle Drive Controllers series, designed for high-performance spindle management in industrial machine tools. As a AC Main Spindle Drive Controller, it delivers a rated current of 150 A and accepts an analogue speed command signal of ±10 V, ensuring precise speed regulation of asynchronous and frameless spindle motors. The unit operates on a rated connection voltage of 3 x AC 400 V, 50 Hz, +/–15% or 3 x AC 460 V, making it suitable for standard global power supplies. Its primary function is to control and protect main spindles, providing smooth acceleration, deceleration, and dynamic braking under varying loads.
Incorporating an internal blower / built-in fan cooling system, the RAC 2.2-150-460-A0I-Z1 maintains optimal thermal performance even under continuous high-load operation. The drive features a 9-pole X4 interface terminal for straightforward integration with existing control cabinets, and includes an incremental encoder output interface for position feedback. Additionally, it comes with an additional bleeder circuit to manage residual charge and improve safety during maintenance. The design omits an extra encoder input, streamlining the signal path and reducing wiring complexity. These technical attributes ensure reliable operation, fast response times, and accurate positioning in demanding CNC applications.
The RAC 2 controller is engineered for compatibility with standard machine tool architectures, supporting three-phase supply voltages within a ±15% tolerance. Internal components are matched to withstand continuous current draw of 150 A, enhancing durability and reducing the risk of thermal overload. The device type designation and series parameters are stored on an AS programming module, simplifying replacements and parameter transfers. By employing robust cooling and charge-bleeder systems, the drive maintains high efficiency and minimizes downtime. Overall, the RAC 2.2-150-460-A0I-Z1 offers precise spindle control, seamless integration, and dependable performance for advanced industrial manufacturing environments.
