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Product Introduction
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Technical Reference 
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Safety Standards
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Quality Management
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Closed Loop Stepping Motor and Driver Package
AS Series
The 
is a revolutionary hybrid stepping motor and driver package which eliminates missteps, a common problem with stepping motors. The uses a built-in feedback device that constantly monitors the motor shaft position to detect and correct for loss of synchronism. Geared models are also available.
Thanks to closed loop control, there is no loss of synchronism
does not lose synchronism even when subjected to abrupt load fluctuation or acceleration. A newly developed rotor position detection sensor constantly monitors the motor movement. If synchronism is about to be lost, closed loop control is used, so there is no need to worry about loss of steps. When the successive overload is given, outputs the alarm signal. The reliability of is as high as that of a servo motor.
No Gain Tuning
Gain tuning for servo motors is critical, troublesome and timeconsuming. Since the operates like a stepping motor, there are no gain tuning requirements. Low rigidity applications, such as a belt and pulley system, are ideal for .
Low Vibration at Low Speed
The driver employs advanced technology that produces smoothness comparable to a microstepping driver. Its vibration level is incredibly low, even when operating in the low speed range. When frequent changes from low (high) to high (low) speed operation are required, the use of the Resolution Select Function solves the problem. provides resolution as low as 0.036°per step without any damping mechanism or other mechanical device. Even smoother operation is possible with geared models.
High Response
Like conventional stepping motors, operates in synchronism with command pulses. This makes possible short stroke positioning in a short time.
In traditional servo motors, there is a delay between the input pulse signals and the motor movement due to the way positioning is continuously monitored. Therefore, a servo motor needs time to settle to a stop after input signals stop. This is called settling time. , which operates in synchronism with command pulses, is the most suitable for positioning with short strokes in a short time.
No Hunting
Since is a stepping motor, it has no hunting problem such as might be found in a traditional servo motor.
Therefore, when it stops, its position is completely stable and does not fluctuate. is ideal for applications in which vibration would be a problem.
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| AS Series | |
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