RS51.1-4G-003-D-NN-FW/S150

The Bosch Rexroth Indramat RS51.1-4G-003-D-NN-FW/S150 from the RD 500 Drive Controllers series is a high-performance drive control device designed for precision operation of high-speed grinding spindles. This unit operates at a Nominal Connecting Voltage of 3 x AC 380-480 V and delivers a Rated Power of 3 kVA, providing reliable energy supply for demanding machining tasks. It features a Built-in brake chopper with resistor and includes no Additional Functions, focusing on core drive control capabilities. The primary application of this controller is to manage spindle speed, torque and acceleration profiles with accuracy and consistency in industrial grinding processes.

Incorporating a vertical mounting orientation on flat surfaces, the RS51.1-4G-003-D-NN-FW/S150 requires a clearance of at least 100 mm above and below the unit to ensure unobstructed airflow and efficient heat dissipation. Its DC link capacitors retain hazardous voltages for up to five minutes after shutdown, and a start inhibit mechanism prevents unintended activation. The X1 terminal provides line supply and protective conductor connection via a metal lug with captive nut. Maintenance and diagnostics are simplified through an RS-232 service interface. Status indication is provided by three LEDs (red, green and yellow), with a bright green LED confirming readiness. Basic parameterization supports rapid setup, including motor adaptation and ramp up/down times, while secure password protection allows parameter adjustments and resets to factory defaults by setting Load to P0071. Fault events trigger de-energization of the main contactor and display the corresponding fault message for swift troubleshooting.

Engineered exclusively for integration with high-speed grinding spindles, this controller should not be used in hoisting equipment, cranes or elevators. Its design demands secure installation to prevent direct contact with surrounding machinery and mandates an easily accessible emergency stop switch to comply with safety requirements. The robust brake chopper resistor enhances durability under frequent braking cycles, while airflow clearance ensures efficient cooling. Backed by a one-year warranty, the RS51.1-4G-003-D-NN-FW/S150 delivers precise, safe and efficient drive control, making it an ideal choice for industrial machining centers seeking high reliability and performance.