Control motor speed (Decrease)

[Bastien1]

Hello,

I've got an issue.

I'm actually trying to control the speed of the motor with PWM signal.

I'm coding on SPC574S-DISP with SPC5 Studio.

With a Control engineering of the speed I can easily increase the speed, but I can't decrease the speed.

In fact, I can't slow down the motor because of its inertia.

How can I do that?

In advance, thank you for your response.

Respectfully

Bastien

[Javier1]

what kind of motor?

stepper motor? bldc? brushed dc motor?

In the case of bldc, are you using trapezoidal or foc modulations?

Maybe show us some code

[Bastien1]

Hello,

Thank you for the answer !

It's a DC motor

For my code, it's basically a loop for the speed with a PI correction

[Javier1]

I dont think we can help you with this little info, try elavorating a bit more:

showing us the mdel of your motor and maybe some code helps