2012年6月28日星期四


5 Tips About Stepper Motor On CNC Wood Router

5 Tips About Stepper Motor On CNC Wood Router
1.  On cnc wood router, usually we call permanentmagnetsteppermotor, it is 2 phase, torque and volume is smaller, usually step angle is 7.5 or 15.
For 3-Phase VR step motor, it could realize big torque output;
 For another kind of stepper motor, called hybrid stepper motor, it adopts the advantage of PM and VR stepper motor, usually is with 2 phase and 5 phase. For 2 phase, the step angle is 1.8 and 5 phase's step angle is 0.72.
2. What is holding torque?
Holding torque means the torque of stator holding rotor when the steper motor does not turning. It is the most important parameter for stepper motor. Usually, stepper's moment of forcce is close to the torsional moment. A stepper's low speed torque will vary directly with current. How quickly the torque falls off at faster speeds depends on the winding inductance and the drive circuitry it is attached to, especially the driving voltage.
3. What is Detent Torque?
Synchronous electric motors using permanent magnets have a remnant position holding torque (called detent torque or cogging, and sometimes included in the specifications) when not driven electrically. Soft iron reluctance cores do not exhibit this behavior.
4. What is the precision of stepper motor?
Its precision is 3-5% of step angle.
5. What the surface temprature that steper motor can afford?
Better keep 80-90 centi degree. 
OMNI offer superior quality stepper motor on cnc wood router, it can afford 120 centi degree for surface temprature. This superior feature allow cnc router also be with superior working performance under high temprature, rather suitable for some summer in some region, such as Indian, UAE, Africa etc. 

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