Product Description:

The PMA65R-11100-00 brushless servomotor is produced by Pacific Scientific as part of the PMA Brushless Motors series. It converts electrical energy into controlled rotary motion for automated stations that demand precise speed and position regulation. The unit works with digital drives that read resolver feedback for commutation, and this sensor arrangement provides shaft angle data that remains stable under vibration and electrical noise. A closed keyway shaft lets the motor transmit torque through a fitted key without requiring special couplings.

Thermal and electrical limits set the motor’s working range. A continuous stall torque of 30.0 Nm represents the load the motor can sustain indefinitely at rated temperature. For rapid acceleration, it can supply up to 95.0 Nm momentarily, allowing short peak-demand moves. The rotor inertia is 7.90 × 10⁻³ kg·m², which gives a moderate balance between response and load matching in servo systems. Producing these torques requires a winding stall current of 11.0 ARMS, so the paired amplifier must deliver that current without derating. All windings are built to the 240–480 V AC voltage class, allowing the motor to operate on common three-phase plant supplies. A stack length of 5 and a right-angle power and feedback exit help reduce required cabinet depth in compact machines.

A factory-installed 24 V brake locks the rotor when power is removed, helping maintain axis position on vertical loads. The aluminum housing forms a 190 mm square body that aligns with standard motor plates, and the assembly weighs 31.0 kg. Power is routed through a 6PP plug while feedback leaves through a separate resolver lead, and both connections face right to suit line-mounted cable trays. The closed keyway shaft, the lack of special design additions, and the resolver sensor support use in standard motion-control installations.