| Stepping motors are highly precise, digitally
controlled motors that are able to provide reliable operation
without using detectors to sense or indicate position. The operation
of the motor is controlled through electrical pulses. The direction
of current flowing through the windings of the motor is switched
with each pulse. The electrical pulse is converted into shaft
rotation in steps of a fixed angle. Together with the driver,
it constitutes an open loop controlling system, which is of
low cost and simple to construct. |
| Characteristics |
|
Precise
Position Control
|
| The specified number of pulses determines the
output degree(s) generated. |
| Linear
Speed Selection |
| The running speed is linearly variable and
determined by the frequency of the pulses. |
| Forward
& Reverse, Pause and Holding Function |
| The forward & reverse rotation is controlled
by the polarity. There is still holding torque even while the
motor rotor is being locked. There is still current flowing
through the motor winding, but no pulse signal creating rotation
from the outside controller. |
| Low
Speed Feature |
|
Low frequency pulses being
input, a stepping motor can operate at very low rotating speeds.
This can be done without a speed reduction gearbox and thereby
save power and maintain precision.
|
| Long
Life |
| The brushless design provides stepping motors
with a very long life. In fact, the stepping motor life is determined
by the life of the bearings. Stepping motors are widely being
used in many types of digitally controlled motion control applications,
such as printers, intelligent (performance) stage lighting,
office, bank and industrial equipment, medical, packaging, textile,
aerospace, robotics and automotive. |
|
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