Product Description:

The PMA42Q-11100-00 is a brushless servomotor produced by Pacific Scientific in the PMA Brushless Motors series. It converts three-phase drive power into regulated torque for automated conveyors, indexing tables, and packaging lines that require precise rotary positioning. A 115 mm square frame lets the unit bolt to standard machine plates, while the integrated brake and feedback hardware simplify axis construction in multi-motor systems. This arrangement supports compact installation where several controlled axes are mounted close together.

Continuous output capability is rated at 4.1 Nm, developed at stall without exceeding the thermal limits of its stack length 2 magnetic core. For short high-demand moves, the electromagnetic package can reach a peak of 14.6 Nm, giving almost four times the continuous rating for rapid acceleration. To support these levels, the windings draw 7.4 ARMS at standstill and are insulated for a supply range of 240-480 V AC, allowing the same model to connect to commonly used industrial mains. Dynamic response stems from a rotor inertia of 0.36 × 10⁻³ kg·m², so servo loops can achieve high bandwidth without excessive overshoot. Overall mass is 6.2 kg, and the square body spreads this load evenly over the mounting flange to minimize frame deflection.

Installation features focus on connectivity and holding safety. A factory-installed 24 V brake locks the shaft during power loss. Power is routed through a right-angle connector housing that carries a 6PP six-pin connector, keeping cable stress low. Resolver feedback supplies rotor angle information, and the closed keyway shaft with its fitted key provides positive torque transfer. The standard configuration keeps the motor compatible with common PMA mounting and service parts.