I just got the pluto hooked up to a small servo to play with. Cool little
board btw - nice work on the firmware jepler. I hacked the lathe_pluto config
as a starting point and did a quick ziegler-nichols tuning session (increase P
until oscolates - measure period - calculate P, I and D) That worked great for
a newbie like me. I was doing a halcmd show and noticed the auto tune pins. I
thought I would give it a try.
I set the pid.0.tune-mode to true and the then the pid.0.tune-start to true.
Nothing. Got onto irc and was told to read the man page ;) also that it says
in the manual that you should increase the pid.0.tune-effort until there is a
oscillation. Well It is initially set to .5 - if I go above .7 the servo
starts to turn and still no effect.
so this is what I did
setp pid.0.tune-mode true
setp pid.0.tune-start true
Nothing happened
setp pid.0.tune-start false
setp pid.0.tune-effort .6
setp pid.0.tune-start true
Nothing happened
setp pid.0.tune-start false
setp pid.0.tune-effort .7
setp pid.0.tune-start true
Nothing happened
setp pid.0.tune-start false
setp pid.0.tune-effort .8
Now the motor starts to turn one direction
setp pid.0.tune-start
Other than the motor turning - still nothing.
Wondering what I am doing wrong. :)
My mess http://www.electronicsam.com/images/KandT/servostart/ampmess.JPG
thanks
sam
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users
