On 03/25/2016 01:26 PM, Nicklas Karlsson wrote: > As someone mentioned before a the an axis/joint may/will run away in > case of an encoder failure. > > It would be possible to detect an encoder failure by comparing output > signal with encoder signal. A velocity signal may be integrated and > do not allow to wander to much or an encoder error will be detected. > A torque signal would be worse.
An encoder that fails into runaway (motion erroneously detected when none is occurring) or that fails into stop (no motion detected when motion *is* occurring) will both result in a following error, precisely for the reason you say above: linuxcnc compares the commanded position with the feedback position from the encoder. -- Sebastian Kuzminsky ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785351&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
