RAC 2.3-250-460-L00-Z1

The RAC 2.3-250-460-L00-Z1, Bosch Rexroth Indramat, RAC Spindle Drive Controllers offer a robust solution for precision spindle management in demanding industrial environments. This AC main spindle drive controller delivers high dynamic performance and stable operation at continuous currents up to 250 A, while supporting two common supply variants. The compact design incorporates an integrated blower and built-in fan for efficient thermal management. Seamless command and feedback pathways ensure minimal latency and high control accuracy across a broad speed range.

Engineered for flexible installation, the unit accepts a Rated Connection Voltage of 3 x AC 400 V, 50 Hz, ±15% or 3 x AC 460 V, meeting diverse electrical grid requirements. A fully integrated Additional Bleeder circuit manages DC-link overvoltage without external resistors, and the internal blower maintains optimal junction temperatures under maximum load. Connectivity is provided through an Interface Terminal X4 using optical waveguides, while the dedicated Speed Command channel via SERCOS interface guarantees deterministic cycle times. The controller’s analog Speed Set-Point input of 10 V simplifies integration with existing PLC or analog control systems. Additional designations, including Series 2 and Version 3, reflect the latest firmware refinements and improved component reliability.

Integration into multi-axis machining cells is straightforward thanks to the standardized optical interface and analog setpoint compatibility, reducing cabling complexity and commissioning time. The fully enclosed housing with forced-air cooling ensures consistent performance in temperature-challenged environments, enhancing MTBF and minimizing unscheduled downtime. Ideal for high-speed spindles in milling, drilling, and grinding applications, the RAC 2.3-250-460-L00-Z1 drive controller combines precise speed regulation with industrial-grade durability for continuous operation in the most demanding production lines.