On 05/02/2021 01:00 PM, Chris Albertson wrote:
The below is exactly true. The problem is that PID is widely used and PID
is only "reactive" it can only deal with what has already happened and the
time lag is the source of oscillations. In the past, PID was the only
control option because we had limited computing power.
True for classic PID. The PID calculation in LinuxCNC also
has feedforwards (FF0 - FF2) which
are quite useful, as they give an approximation of the
required drive to the motor without the output, move, sample
delay.
Jon
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
