Servo Tuning FF

LAIR82 wrote:

I have gone through my hal file over and over again with a fine tooth comb and cannot find anything. Talking with my boss he was wondering if maybe the firmware is the problem.k

Can you post your HAL file here?

I posted my hal and ini.


Thanks

Rick

Heres my ini

I haven't spotted anything wrong in the HAL files.
I would be tempted to look at the pwmgen value pins in Halmeter (or the watch tab of Halconfig) to see if the signal is getting there.
Also have a look at the thread periods to make sure that the threads are running.
If the pwmgen values are non-zero and the enables are set, then it must be a problem outside HAL, I think.

I would suspect the /ENA pins, except that you have one working channel.

I can see the value going up and down on the +/- 10v on the pwmgen.02.value pin in the "show hal config" watch screen.

Im not sure what you mean though by thread periods?


Rick

LAIR82 wrote:

I can see the value going up and down on the +/- 10v on the pwmgen.02.value pin in the "show hal config" watch screen.

And you definitely have the hardware hooked up to analogue outputs 2 and 4 ?

Im not sure what you mean though by thread periods?

Halconfig also lets you see the execution time of the realtime modules and the thread periods. A number that doesn't change can indicate a crashed function.

Resolver support in LinuxCNC is fairly new. It might be worth loading the HAL with num_resolvers=0 to eliminate the possibility of a resolver driver bug. Just be aware that this means no feedback...