Product Description:

The PMA53Q-10100-00 is a brushless servo motor manufactured by Pacific Scientific and placed within the PMA Brushless Motors series. Designed as a rotary actuator for CNC axes, pick-and-place heads, and similar industrial automation tasks, it converts drive current into precisely controlled shaft motion while providing feedback for closed-loop regulation. It is supplied without a holding brake, so stopping is left to the drive or external mechanics.

It delivers a continuous stall torque of 10.5 Nm, providing steady holding force for inertial loads at zero speed. When rapid acceleration is required, the magnetic design supports a peak torque up to 31.0 Nm, allowing short bursts of three times the continuous level without demagnetizing the rotor. The electrical winding draws a nominal stall current of 7.4 ARMS, a figure the amplifier must supply continuously to reach the rated torque while maintaining thermal balance in the stack-length 3 stator. Voltage insulation is rated for the 240–480 V AC class, so the motor can connect directly to mid-range servo drives on common three-phase mains. Dynamic response is influenced by a rotor inertia of 1.92 × 10⁻³ kg·m², giving a compromise between smooth speed regulation and quick reversal.

The aluminum housing forms a 142 mm square profile, which simplifies mounting to standard machine plates while leaving room for the closed keyway shaft that is supplied with its key fitted. Overall mass is 11.0 kg, so gantry axes may require counterbalance, but small fixtures can accommodate the load. Power enters through a 6PP right-angle connector, and the specified orientation keeps cabling within the machine envelope; the arrangement is identified as Right-Angle. For commutation and velocity feedback, the motor contains a Resolver, enabling absolute position decoding in harsh electrical noise environments.