Product Description:

The P22NSXA-LNF-NS-02 is a two-phase stepper motor manufactured by Pacific Scientific as part of the POWERMAX II P Motors series. It is intended for precise incremental motion in packaging, laboratory, and light machining cells. The motor translates pulse-train commands from drive electronics into accurate shaft rotation without internal feedback devices, making it suitable for open-loop positioning tasks. Because it uses step commands rather than closed-loop feedback, motion accuracy depends on the drive setup and the applied load.

The motor advances in 1.8-degree steps, yielding 200 steps per revolution with a step accuracy of ±1.5%, while 0.049 N·m of detent torque helps hold the rotor when the coils are idle. Energized windings supply 1.39 N·m of holding torque, and they draw 3.3 A DC per phase through 0.85 Ω resistance and 3.3 mH inductance in winding type A. Two stacks share the two-phase circuit, and the standard rotor inertia of 0.0000252 kg·m² helps moderate acceleration. Electrical insulation is rated Class B (130 °C), backed by 100 MΩ isolation and a 340 Vdc dielectric rating. Power connections are made through a receptacle connector, and no encoder is fitted, so position is inferred from commanded steps. The NEMA 23 mounting interface and 78.7 mm body length support compact installations. A single flat shaft that measures 6.35 mm in diameter and extends 20.57 mm accepts in-line couplings.

Standard construction permits a 58 N axial and 89 N radial shaft load, supporting belts or gears without premature bearing fatigue. The assembly weighs 1.13 kg, so moving axes add little inertial overhead while still benefiting from the motor's thermal mass. Continuous duty across -20 °C to +40 °C ambient conditions allows operation in most plant settings without derating. This helps the motor fit small linear stages and indexing mechanisms that need modest mass at the moving end.