Product Description:

The PMB23C-00114-00 Brushless Servomotor is produced by Pacific Scientific as part of the PMB Brushless Servomotors series. This servomotor is intended to deliver precise rotary motion in industrial automation tasks such as pick-and-place systems, indexing tables, and small gantry axes. By converting electrical energy into controlled mechanical torque, the unit provides the closed-loop performance needed for accurate positioning and velocity regulation in compact machinery.

The motor uses a NEMA Size 23 frame, so its mounting face and pilot fit common 57 mm stepper and servo layouts. A nominal stall current of 3.8 ARMS at 240 VAC indicates the current level used for drive and cabling selection when the rotor is locked. Position feedback is delivered through an incremental encoder that yields 2048 ppr, giving the controller a resolution of 0.176° before interpolation. Power and signal conductors exit the housing as flying leads with AMP connectors, enabling direct connection without a separate mating receptacle. The output shaft uses a flat shaft interface that helps prevent coupling slip during torque reversals.

Control fidelity is enhanced by a digital encoder with commutation, which sends both incremental counts and Hall-level phase information so the drive can synthesize sinusoidal currents at each electrical angle. This arrangement supports smooth current switching during low-speed operation and rapid direction changes. The magnetic section uses a lamination pack with a stack length of 3, which raises continuous torque compared with shorter stacks while keeping inertia moderate. The motor is supplied as a standard motor, so it comes without custom windings or special mechanical options. Compatible matched drives and accessories are available for this platform, supporting compact brushless motion systems with consistent electrical and feedback interfaces.