Product Description:

The R2AA1020AFCPKB is a middle-inertia servo motor manufactured by Sanyo Denki for the R SANMOTION Servo Motors series. It uses a standard 100 mm flange and integrates a battery-backed absolute encoder with a 24 VDC holding brake, allowing motion controllers to command precise positioning and secure the load when power is removed. In automated packaging lines, pick-and-place modules, or light machining centers, the motor converts electrical energy into rotational motion that can be regulated over a wide speed range for repeatable axis control.

The electromagnetic section is wound for a 200 V line supply and delivers a continuous mechanical output of 2.0 kW. Under velocity commands, the rotor can reach 6000 rpm, giving machinery ample headroom for rapid indexing or high-speed spindle operation. Installation is simplified by the square 100 mm flange pattern, which matches common planetary gearboxes and mounting plates. Shaft retention during emergency stops is handled by an internally mounted brake that engages whenever its coil loses the 24 VDC control voltage. Because the magnetic and inertial characteristics place the motor in Sanyo Denki’s middle-inertia class, it balances swift acceleration with stable load coupling for mid-mass tooling and fixtures.

Position feedback comes from the PA035C encoder, which resolves each revolution into 131,072 divisions per revolution (17-bit) and streams data at 2.5 Mbps to the drive electronics. The encoder uses half-duplex asynchronous communication, minimizing conductor count while maintaining deterministic data transfer. In addition to single-turn data, the device records a multi-turn value of 65,536 counts (16-bit) that remains valid after power loss because a 3.6 V ER3VLY lithium cell sustains the encoder memory. This absolute tracking eliminates the need for homing routines, shortens restart times, and preserves machine alignment across planned or unplanned shutdowns.