Product category:
Stepper and Servo Drives, Motors, Controls
News Release from: EMS | Subject: JS three-phase stepping motors
Edited by the Engineeringtalk Editorial
Team on 04 April 2005
Three-phase steppers show their benefits
Low cost stepping motors have for a long time been successful in many applications ranging from medical infusers to CCTV pan and tilt heads.
Low cost stepping motors have for a long time been successful in many applications ranging from medical infusers to CCTV pan and tilt heads Recent developments at Japan Servo (JS) have allowed small drives specialist Electro Mechanical Systems (EMS) to offer advantages to such customers with the JS range of three-phase stepping motors
This article was originally published on Engineeringtalk on 31 Jan 2001 at 8.00am (UK)
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Stepping motors are designed as their name implies to step change their rotor position to generate controlled and repeatable rotary motion.
However this results in some undesirable characteristics, which the three-phase construction can reduce significantly.
In noise sensitive applications such as medical drives, they offer lower noise.
Where smooth running is needed such as scanners and CCTV systems, they offer less cogging and higher accuracy.
These are coupled to higher torque for a given size of motor and simpler drive electronics in bipolar mode.
As a result EMS new projects are now invariably using three-phase motors either for new applications or to replace two-phase motors in existing applications.
The advantages easily outweigh the small cost penalty, and it is expected that as their market penetration increases and the volume manufactured rises, economies of scale will make them similar in price. Request a free brochure from EMS ...
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