Product Description:

The 2VM52-000-1 is a permanent-magnet DC servomotor produced by Pacific Scientific within the Low Inertia PMDC Servomotors series. It suits compact positioning stages, pick-and-place heads, and other axes where quick acceleration and stable velocity control are required. Low rotor inertia minimizes settling time, and this configuration pairs easily with low-voltage drives that supply armature power from 24 V control buses common in light assembly machinery.

The motor develops a rated torque of 0.134 Nm at a rated speed of 3500 RPM, yielding 49 W of mechanical output. To reach this operating point it draws 5.8 A of armature current against a terminal resistance of 1.0 Ω, while a back electromotive force constant of 2.66 V/kRPM lets the drive electronics predict speed from generated voltage. During steady operation the winding can dissipate up to 54 W, so no external fan is required; the design therefore omits forced-air cooling hardware. The Alnico V-7 magnet material provides a stable field, and because neither an optical encoder nor an analog tachometer is attached, velocity feedback must be supplied by an external sensor if the application demands closed-loop control.

For short transients such as rapid index moves the armature can accept 28 A of pulse current, a level supported by a rotor inductance of 110 µH that limits di/dt to manageable values for most PWM drives. The mechanical time constant of 5.1 ms reflects the low inertia armature and enables quick acceleration up to the no-load speed of 6450 RPM without overshoot. Nominal excitation is supplied at 18 V, and because no internal blower is fitted the temperature rise must stay within limits specified by the continuous dissipation figure. Absence of onboard feedback devices simplifies cabling, while the low inertia profile complements tight position loops in pick-and-place or small gantry systems.