How can I reduce the error in this PID controlled stepper motor position control model?

I want to verify the accuracy of this model and want to reduce the error it generates. I have tuned the PID still the error cant be minimized. Please help.

Answer 1

[Nicolas Schmit]

To reduce the static error, try to increase the integral gain of your PID. If this does not work, please upload your Simscape file to your question.

Answer 2

[YingChun]

Can you share your model to me?

[e-mail]

[chunwu]

haha