11BRW-300-B-4 by Danaher

The 11BRW-300-B-4 from Danaher is a high-precision resolver within the Dynapar Resolvers series engineered for demanding industrial environments. This model offers a primary accuracy of 10 arc-min and operates on a nominal input voltage of 12.0 V rms to ensure consistent performance. With a robust wiring/termination scheme featuring a 4-wire configuration (denoted by the "-4" suffix), the resolver delivers secure and efficient signal transmission. The unit’s compact design incorporates a transformation ratio of 1.75 (V_out / V_in), optimizing voltage step-up to enhance measurement sensitivity.

Technically, the 11BRW-300-B-4 employs an excitation frequency of 400 Hz paired with an input current of 10.9 mA, striking an ideal balance between power consumption and signal strength. The resolver’s null output voltage is maintained at around 30 mV, minimizing zero-offset error and facilitating precise zero-position detection. Its phase shift of 12 degrees is calibrated to provide accurate angular displacement feedback, supporting tight control loops in servo and motor control applications. The device architecture ensures linear response across the full rotation, while the rugged construction supports continuous operation under industrial load cycles.

Operational features of this resolver include advanced temperature stability and noise immunity, ensuring signal integrity even in electrically noisy environments commonly found in manufacturing floors. The built-in 4-wire termination arrangement simplifies installation by separating excitation and signal return paths, reducing ground loops. The combination of primary accuracy, low null output voltage, and precise transformation ratio yields exceptional repeatability for applications demanding fine position feedback. Danaher’s meticulous winding and assembly processes deliver a robust design that resists mechanical shock and vibration, extending service life and minimizing maintenance intervals.

Integration of the 11BRW-300-B-4 is streamlined thanks to its standard mounting interfaces and industry-accepted electrical connections. It seamlessly interfaces with Wake Industrial controllers and third-party drives within the Industrial Automation sector, facilitating plug-and-play incorporation into existing automation lines. This resolver is ideally suited for robotics, CNC machinery, and motion control systems where consistent, high-fidelity angular measurement is critical to operational efficiency and product quality.