forum.cncdrive.com

Hello,

I'm facing challenges to tune-up the DG4S servo drives to optimize settings to actual use. The thing is that in servoconfigurator 3 you can't adjust the speed and acceleration settings, meaning that if adjust PID settings with analisator and by generating motion from configuration, the speed and accelerations are sky high. This leads to situation that driver are optimized for those speed/acceleration setting but then in real life I'll use much less speed/acceleration and the chosen PID settings are far away optimized for those settings.

Is there any possibility to adjust these setting in servoconfigurator or any other tips how to proceed. I know that I could use error viewer tab and generate motion from other software, but it is really time-consuming and difficult to find correct PID settings because error viewer reads in real-time instead of saving the graph.

Thank you in advance.

The procedure is called 1(t) step analisation using unit step checking function, this is why the speed and acceleration is "infinate".
This is the best type of analisation used to analyse the PID loop stability.
Please read after how it works, you could find lots of articles of it over the internet.

After tuning the PID loop based on the 1(t) step response function you could still test it using the step/dir interface and using a CNC controller which can generate trajectories with accelerations and deccelerations and then you could view the error view graph in realtime to decide if your tuning is good enough or if it needs fine tuning.