Product Description:

The PMA45R-11100-02 is a brushless servomotor manufactured by Pacific Scientific and supplied as part of the PMA Brushless Motors series. It is intended for precision positioning and velocity control in automated machinery, where closed-loop feedback and repeatable torque delivery are required. By combining a permanent-magnet rotor with electronic commutation, the unit delivers continuous rotary motion without brush wear while maintaining compatibility with dedicated drive amplifiers and industrial power buses. This design is well suited to automated axes that cycle frequently and still require smooth speed changes.

Under steady load, the motor can maintain a continuous stall torque of 10.2 Nm without exceeding winding temperature limits. For rapid accelerations, its electromagnetic core supplies a peak torque of 36.8 Nm, giving the axis reserve for sudden inertial changes. These torque levels are achieved with a phase current of 11.0 ARMS, and the winding is designed for operation on 240–480 V AC through a matched drive. Dynamic response is supported by a rotor inertia of 0.84 kg·m² × 10⁻³, which balances quick acceleration with smooth speed regulation over the operating range. This balance helps the motor respond cleanly to changing load conditions during repeated motion cycles.

An integrated 24 V brake locks the shaft during power-off events, which is useful on vertical or suspended loads. Power and feedback conductors exit through a right-angle connector arrangement that minimizes cabinet depth and mates with a sealed 6PP six-pin plug. The square mounting face measures 115 mm, matching ISO patterns, and it houses the stack length 5 lamination core while using a closed keyway shaft with the key installed for direct coupling to pulleys or gearboxes. Resolver feedback withstands electrical noise and supports reliable position feedback for the drive controller. The motor has a mass of 10.4 kg, so the surrounding machine structure should account for its installed weight.