15BRCX-500-J12 Danaher
Wake Industrial LLC is not an authorized distributor of this product.
The Danaher 15BRCX-500-J12 is part of the Dynapar Resolvers series and features a frame outer diameter of 1.5 inches with a single servo groove mounting style. This resolver provides an accuracy of 7 arcminutes, operates at an excitation frequency of 7 kHz, and has a weight of 4.5 ounces. It supports an input voltage of 4.25 Vrms and uses 24 AWG lead wires that are 12 inches long.
Internal Product Review
The 15BRCX-500-J12 is a Danaher Dynapar resolver with 7 arcmin accuracy and 7 kHz excitation frequency. Single servo groove mounting and CCW phasing support clean integration in motion feedback assemblies. The 0.47 transformation ratio highlights precise and dependable resolver performance.
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Product Description:
The 15BRCX-500-J12 is a resolver manufactured by Danaher within the Dynapar Resolvers series. In motion-control systems, this component converts mechanical shaft position into analog sine and cosine signals, giving servo drives real-time angular feedback for closed-loop control. The unit combines a rotor and stator pair wound on a 1.5-inch frame to provide continuous, brushless operation suited to harsh industrial automation environments.
The resolver has an angular accuracy of 7 arcmin, ensuring that position error stays within a narrow range for precise drive commutation. It is energized by an input of 4.25 Vrms and draws 55 mA; this low power requirement reduces heat generation inside compact motor housings. Excitation is applied at 7 kHz, a frequency that balances noise immunity with manageable amplifier design. A transformation ratio of 0.47 indicates the scale between the primary excitation and secondary output voltages, simplifying gain settings in the receiving electronics. Internally, the rotor coil has a resistance of 14 Ω, while the stator pair has a resistance of 30 Ω. These resistance values must be considered when selecting the source impedance on the drive side. Standard phasing is counterclockwise (CCW), so index alignment must follow that direction of rotation during installation.
The frame has an outer diameter of 1.5 in and a pilot diameter of 1.449 in, providing a slip-fit reference for concentric mounting. The housing has a single servo groove that locks the body against torsion, and the assembly weighs only 4.5 oz, minimizing the load added to small servomotors. Twelve-inch leads simplify direct termination, and the cable uses 24 AWG conductors to carry resolver currents without excessive voltage drop. This lead length allows the device to reach a nearby junction box without splicing. Fewer connection points can reduce the risk of intermittent signal paths in machinery exposed to continuous vibration.
