Product Description:

The PMA43P-11100-00 belongs to the PMA Brushless Motors series manufactured by Pacific Scientific. It is a brushless servomotor intended for closed-loop speed and position control in automated machinery. A resolver mounted on the rotor supplies analog sine-cosine feedback to the drive, and the shaft is machined with a closed keyway and fitted key to lock pulleys without slip. Right-angle signal and power connectors keep the cabling inside the machine envelope, while the square 115 mm frame allows direct replacement of legacy motors with the same mounting pitch.

The motor delivers a continuous stall torque of 6.1 Nm, giving the axis enough static holding force for vertical loads or tensioning duties. During acceleration it can reach a peak of 21.7 Nm, so short bursts of high torque are available for rapid indexing before the thermal limits are approached. These torque levels are produced from a nominal stall current of 5.4 ARMS flowing through the three-phase windings; that current aligns with digital drives designed for mid-range motion tasks. Dynamic response is helped by a rotor inertia of 0.52 × 10⁻³ kg·m², which minimizes settling time without making the system unstable. All magnetic components are housed in a square body that measures 115 mm across the mounting face, simplifying mechanical alignment inside standard IEC frames.

A factory-installed 24 V brake holds the load whenever the drive is disabled, preventing drift on power-off. Overall mass is 7.6 kg, light enough for gantry axes yet heavy enough to damp vibration. The stator is wound for a supply window of 240-480 V AC, enabling direct connection to common industrial mains through its sealed 6PP power plug. Stack length code 3 increases the iron volume for higher torque density, and no special design features are noted, keeping service procedures routine for maintenance teams.