I had it at 1 before, but when i changed the config last i put it back to zero.
Im still having the same problem as before. When i try to arm the PID with the suggested PID numbers, the axis jumps a few thousand counts and stops before i've even input a motion, then i get the ERR led on the motion controller itself. I tried running P: 1 D:25 with no scale factor and the PID arms without the bump but when i try to run motion, it start accellerating slowly then the PID disarms. The "follow error" indicator is very hard to use because if you are infact having a follow error, it seems like everything shuts down and its difficult to conclude that it was infact a follow error. The software seems to lack the feedback needed to tune.
I have a funtionong sytem using the dspmc box, maybe I can help you get it set up. Once you get the hang of it the axis works is a great way to set the pid and to fine tune your drives.
I will try to answer your questions so far.
1.When you arm the pid and the axis goes 3000 steps and then faults out sounds like your encoder is wired backwards into the dspmc, or the motor polarity is wrong. When the pid is armed, the motor should lock into the current position, or possibly bounce between encoder counts, generating a hum or growl.
2. Arming pid. If you arm the pid and the actual vs commanded encoder counts are off by more than the following error, it will fault, which then resets the actual to the commanded, so when you arm the pid again, it turns on.
3.You will have to get the pid to arm and be stable before the execute will function.
4. Yes, the scale function keeps the number of zero's to something resonable as some people have trouble gett a number with 8 or 9 zero's typed correctly.
I have a couple of questions for you.
1.What are the make and model of the servo amps?
2.Do the encoders feed back into just the dspmc or do they go into the servo amp as well?
3.What are the encoder counts?
4.Are the encoders differential or single ended with converter board?
5.Did you use the enable circuit?
When it is up and running, I would love to see a video of it going 2600ipm
If you have any other questions, just let me know.
Mike