On 11 Nov 2009 at 19:27, Jeshua Lacock wrote:
> > Thanks John, > > If I am using a servo with 512 PPR, is a step 1/512 of a revolution? If your servo drives take step and direction signals then they are just like steppers to the software. If it takes 512 steps to go one revolution and it takes two revolutions to move one inch then your scale is 1024 = the number of steps to move one inch (or mm). > I > guess I do not know how step/microsteps apply to servos... It would not apply to servos only to drives that take step and direction signals. Steps and micro steps and gear ratios and pulleys all add up to one thing "how many pulses does it take to go one unit". If you have servo drives that take PWM or 0-10v signals and feed back position info to EMC via an encoder then that is a whole different beast. > > Is it possible with EMC to command the servo to move 1 revolution > (or > a specific number of steps) instead of specifying a distance? If you set your scale correctly I assume you could... dunno why you would want to John ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
