Product Description:

The PMA45N-00100-00 is a brushless servo motor produced by Pacific Scientific as part of the PMA Brushless Motors series. It converts commanded current into controlled mechanical rotation for positioning or speed-regulated tasks in automated equipment such as pick-and-place heads, packaging axes, and light machine tool spindles. With feedback supplied by an integrated resolver, the motor is suited for closed-loop operation where precise commutation and real-time load correction are required.

The actuator delivers a continuous stall torque of 10.2 Nm, so it can hold that load continuously without exceeding its thermal limit when mounted to a heat-dissipating surface. During short acceleration periods, it reaches a peak torque of 36.8 Nm, allowing rapid indexing or improved disturbance rejection before duty-cycle limits apply. Dynamic response is aided by a rotor inertia of 0.84 kg m² × 10⁻³, which helps moderate speed changes without placing excessive burden on the drive control loop. To sustain rated torque, the windings draw 3.8 ARMS under stall conditions, and they are designed for a 240-480 V AC class so the motor can pair with common three-phase servo amplifiers. A stack length code of 5 indicates the iron length used for this torque level.

Mechanical integration is supported by a frame weight of 10.4 kg and a square body size of 115 mm, dimensions that match NEMA 42 style mountings. Power and thermal conductors exit through a Right-Angle connector, while phase energy is carried on a 6PP six-pin power plug that locks with bayonet threads. Position feedback comes from a Resolver housed in the rear electronics chamber, and torque is transmitted through a smooth shaft that accepts custom couplings without keyways. The motor does not include brake hardware, so static holding must be provided by drive torque or external mechanical means.