Product Description:

The PMA22S-01100-00 is a brushless servo motor manufactured by Pacific Scientific for the PMA Brushless Motors series. As a compact rotary actuator, it converts electrical energy into controlled mechanical motion for positioning tasks in industrial automation such as indexing tables or packaging axes. The motor interfaces directly with drive amplifiers and feedback electronics to deliver closed-loop torque and speed regulation inside machinery.

This model supplies a continuous stall torque of 1.3 Nm, meaning it can hold that load indefinitely without overheating when rated cooling airflow is present. During rapid acceleration it reaches a peak torque of 4.7 Nm, giving machines short bursts of force for overcoming inertia. To achieve these torque levels, the winding draws a nominal stall current of 22.0 ARMS, a figure used when sizing drives and cabling. Dynamic response is aided by a rotor inertia of 0.038 × 10⁻³ kg·m², so velocity changes occur quickly with minimal energy loss. The square motor body measures 70 mm on each side, allowing installation in tight multi-axis frames while still leaving room for connectors and brake hardware.

The motor is equipped with a 24 V brake that clamps the shaft when power is removed, preventing vertical loads from back-driving. Power and feedback cabling exit through a right-angle housing, and the supply side uses a 6PP six-pin power connector for mating with Pacific Scientific servo drives. Coils are wound for a 240–480 V AC voltage class, so the unit can operate on common industrial three-phase mains without an intermediate transformer. Additional features include resolver feedback, a smooth shaft that simplifies coupling to gearheads, a stack length code 2 for the magnetic path, and a weight of 2.3 kg that helps keep overall machine mass low.