21BRCX-510-D7B/10

21BRCX-510-D7B/10 is a Danaher resolver in the Dynapar Resolvers series. It operates with an excitation frequency of 4 kHz, an input voltage of 8 Vrms, and an input current of 20 mA to support resolver signal generation. Its transformation ratio is 0.25, relating the output voltage to the applied excitation voltage. The +5.5-degree phase shift indicates the phase difference between the excitation and output signals, while the 15 mV null voltage is the residual output present at the electrical null position.

The resolver has a Zro impedance of 210 + j410 Ω and a Zso impedance of 110 + j180 Ω, representing its resistive and reactive impedance components under the associated measurement conditions. Rotor resistance is 53 Ω, and stator resistance is 40 Ω; these values indicate the winding resistance in each section.

The steel housing is 1.25 inches long and has an outer diameter of 2.1 inches, providing a rigid enclosure for the resolver components. A 2.061-inch pilot diameter supports alignment during installation, and the rotor has a 0.5-inch bore for mounting around a shaft. The mounting style has no servo groove.