11BRCX-300-E-74 by Danaher

The Danaher 11BRCX-300-E-74 is a robust heavy-duty brushless resolver within the Dynapar Resolvers series, specifically engineered by Danaher to deliver precise single-speed position feedback in industrial automation environments. This rotor-mounted device operates with a Nominal Input Voltage of 7 V rms and supports an Excitation Frequency range of 7 kHz to 8 kHz, ensuring stable signal generation. The resolver family designation is Series 11/R11 Heavy Duty, paired with a Speed Rating of Code 1 (single-speed) for consistent operation. Designed with a Null Voltage of 74 mV and a Phase Shift between –2° and –3°, the unit maintains high signal integrity. With a Maximum Frequency capability up to 5 000 Hz, this resolver meets the demands of high-precision industrial systems.

Technically, the 11BRCX-300-E-74 features a Rated Current range of 7 mA to 10 mA, optimizing power consumption while guaranteeing reliable performance. The Transformation Ratio spans from 0.55 to 1.07, delivering a proportional 6 V output under standard excitation conditions. Constructed for a Mounting Location directly on the rotor, it minimizes mechanical play and ensures repeatable accuracy. Operating flawlessly within a temperature window of –40 °C to +125 °C, the resolver’s thermal resilience supports harsh industrial environments. This device’s design balances low inertia and robust construction, reducing signal lag while enduring rigorous motion profiles.

Operationally, the resolver sustains continuous feedback at its fixed Excitation Frequency with ±5% tolerance, facilitating precise angular measurements. The low Null Voltage of 74 mV and tight Phase Shift control mitigate timing errors, enhancing dynamic response. With a minimal Rated Current draw at excitation, the 11BRCX-300-E-74 achieves efficient power usage and reduced thermal buildup. Its heavy-duty construction in the Series 11/R11 Heavy Duty family affords high mechanical stability, limiting shaft runout and vibration. The consistent Transformation Ratio ensures reliable output amplitude, supporting downstream signal conditioning and error correction.

Integration of the 11BRCX-300-E-74 into industrial automation systems is seamless: its Rotor mounted configuration simplifies installation within motor assemblies, encoders, and position loops. Its compatibility with excitation sources up to Maximum Frequency 5 000 Hz expands its application range to high-speed servomotors and precision actuators. This resolver excels in machine tools, packaging lines, and robotic platforms where compact form factor and durability are critical. By leveraging the proven engineering of Danaher Dynapar Resolvers, designers can achieve enhanced motion control accuracy and system reliability.