Low-Speed Synchronous Motors
Low-speed synchronous motors provide highly precise speed regulation, low-speed rotation and quick bi-directional rotation. The basic construction of low-speed synchronous motors is the same that of us stepping value motors. Since they can be driven by an AC power supply, they are sometimes called stepping value of AC motors.
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Low-Speed Synchronous Rotation
The motor rotates at a speed proportional to and accurately synchronized with the frequency of the power supply. A fluctuation in load does not affect the rotation speed.
- At 50 Hz 60 r/min (30 r/min for SMK014MA-*)
- At 60 Hz 72 r/min (36 r/min for SMK014MA-*)
Continuous Rated Capacitor-Run Motor
This motor can be driven at a continuous rating even when bi-directionaloperation is required.
Superb Starting, Stopping, and Reversing Characteristics
If operated within the permissible load inertia, the motor can start, stop and reverse with 1.5 cycles (0.03 sec at 50 HZ, 0025 sec at 60 Hz) of the power supply frequency.
The motor can be stopped instantly by turning off the power supply. The stopping accuracy with the motor's permissible load inertia is ± 10 & deg;. When a precision switch is used, simple and precise positioning is possible.
Constant speed can be maintained even during lowering operations. Low-speed synchronous motors are suitable for applications where vertical operation at a constant speed is required.
Sincea permanent-magnet, multi-poled rotor is used, the motor has a holding torque even when the motor is not energized. When used with a gearhead, comparatively high holding torque can be utilized. (When a larger holding torque is required, a DC power supply can be connected as soon as the AC power supply is cut off.)
Pinion shaft models are available that can be connection to the Oriental Motor standard GN-type low-noise gearheads.