Product Description:

The 15BRCX-602-F15B/15 is a frameless resolver manufactured by Danaher within the Dynapar Resolvers series. It functions as an electromechanical angle transducer that supplies absolute shaft position feedback to servo drives and motion controllers used in industrial automation. Its aluminum housing permits tight integration into compact motor back ends where high temperatures or electrical noise could interfere with optical encoders. The resolver uses electromagnetic coupling rather than light-sensitive components, making its feedback suitable for demanding motor environments.

The resolver is excited at 5 kHz with an input of 4 Vrms, and it draws 23 mA from the drive’s reference source. Under these conditions, the rotor impedance is 105 + j170 Ω and the stator impedance is 200 + j270 Ω, allowing the interface electronics to maintain appropriate load matching. A transformation ratio of 0.50 means that the sine and cosine outputs correspond to one-half of the applied reference amplitude, simplifying decoder gain selection. The device introduces a phase shift of +6 degrees, which must be compensated for during resolver-to-digital conversion. Its 24-inch cable leads help keep low-level feedback signals separated from motor power conductors. The null voltage is limited to 25 mV, reducing interpolation error near the electrical zero point.

A pilot diameter of 1.449 inches aligns the stator accurately within the host motor. A single servo-groove mount secures the housing without requiring separate mounting brackets. The stator and rotor share an axial length of 0.635 inches, supporting balanced air-gap geometry within the compact assembly. A keyed rotor bore measuring 1/4 inch couples directly to the motor shaft and prevents relative rotation during operation. The resolver weighs 3.5 oz, limiting the amount of additional mass placed at the motor’s feedback end. Its aluminum shell dissipates heat and resists corrosion while protecting the internal windings and magnetic components.