11BRCX-300-B1 Danaher
Wake Industrial LLC is not an authorized distributor of this product.
The Danaher 11BRCX-300-B1 belongs to the Dynapar Resolvers series and features a primary winding on the rotor. This resolver operates at an input voltage of 7.5 Vrms with a current of 40.0 mA and an input frequency of 4000 Hz. It also offers a transformation ratio of 1.07 and a phase shift of -2 degrees.
Internal Product Review
The 11BRCX-300-B1 is a Dynapar resolver from Danaher with a rotor primary winding and a 1.07 transformation ratio. Input requirements of 7.5 Vrms and 4000 Hz support stable signal conditioning in motion feedback circuits. A low 15 mV null voltage is a strong indicator of accurate resolver performance.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The 11BRCX-300-B1 resolver is manufactured by Danaher and belongs to the Dynapar Resolvers series. It converts mechanical rotation into analog sine and cosine signals so a drive or PLC can determine the absolute shaft angle and speed in industrial automation tasks such as indexing tables and robot joints. This electromechanical sensor uses magnetic coupling instead of optical discs, making it suitable for environments with dust, oil, or vibration. Its feedback signals allow a connected controller to monitor rotational movement without relying on delicate optical components.
During operation, the resolver’s rotor requires an excitation voltage of 7.5 Vrms at a carrier frequency of 4000 Hz. Supplying this high-frequency reference energizes the primary winding so that the induced secondary voltages track the shaft angle with minimal phase error. The drive must supply up to 40.0 mA to the excitation coil; this current indicates the load placed on the sensor power amplifier and affects the winding temperature rise. With an electrical speed factor of 1, one electrical cycle corresponds to a single mechanical revolution, simplifying interpolation in standard 360-degree applications. The voltage transfer between the primary and secondary windings has a transformation ratio of 1.07, providing the controller with a predictable signal amplitude for its demodulation circuitry.
A residual null voltage of 15 mV appears when the sine and cosine outputs should ideally be zero. Keeping this value low improves angular accuracy near the quadrature points. The resolver introduces a phase shift of -2 degrees between the reference excitation and the returned signals, and the drive’s demodulator compensates for this offset to maintain correct phase-sensitive detection. The primary winding is carried on the rotating rotor, while the stator conductors remain stationary. This arrangement eliminates the need for slip rings and supports continuous operation in servo axes exposed to repeated motion. The stationary external connections also reduce wear at the electrical interface while preserving consistent feedback transmission during rotation.
