- Operating speed in steps/second
- Torque in oz-in.
- Load inertia in Ib-in.2
- Required step angle
- Time to accelerate in ms
- Time to decelerate in ms
- Type of drive to be used
- Size and weight considerations
Some of this information will be provided from application specifications, such as the size and weight considerations, step angle, and the operating speed. Other information must be calculated. Several formulas are provided to help you with these calculations.
The formula for calculating the torque is
The formula for equivalent inertia to overcome friction in the system and enough torque to start or stop all inertia loads is
Frictional and Rotational Acceleration Considerations
The formula for calculating the torque required to rotationally accelerate an inertia load is
Purchase Industrial Electronics from Prentice Hall.
Reader Comments | Submit a comment »
this is a Very nice representation, as for the
previous comments, I think Its quite Clear
the commentor's equation is mathematically
the same one presented in the article by the
author since we're multiplying by (1/2)
- Achraf M Fahmy, Higher Tech Inst. firstname.lastname@example.org - Mar 7, 2012
Correction to inertia equation
Overall, this is good information for the professional hardware developer and hobbyist alike. However, the second equation for calculating inertia is incorrect. The correct equation is I = [W*(r1^2+r^2)]/2.
- John Yarbrough - Oct 3, 2011
in the doucment the information given is very use full thanks 2 authour
- nirmal, n++. email@example.com - Feb 12, 2008
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