J
Hi,
I'm developing a servo controller for an application that resembles a CD-spinner. It's a sensor based solution with trapezoidal commutation.
I'm however having some problems with the speed range. On one of the setups I can reach the desired 10000 rpm in CCW direction but only 5000 rpm in CW direction. On another setup, with slightly higher load, I reach about 6100 and 5700 rpm respectively.
I'm leaning towards implementing a phase advancement algorithm for the commutation but I'm hesitating since I didn't expect there to be a direction dependent difference in the speed range. Or a load dependancy for that matter. Can someone please shed some light on the subject of phase advancement? Or other possible causes of the speed limitation?
The motor is a Faulhaber 3564K by the way.
Best Regards,
Johan
I'm developing a servo controller for an application that resembles a CD-spinner. It's a sensor based solution with trapezoidal commutation.
I'm however having some problems with the speed range. On one of the setups I can reach the desired 10000 rpm in CCW direction but only 5000 rpm in CW direction. On another setup, with slightly higher load, I reach about 6100 and 5700 rpm respectively.
I'm leaning towards implementing a phase advancement algorithm for the commutation but I'm hesitating since I didn't expect there to be a direction dependent difference in the speed range. Or a load dependancy for that matter. Can someone please shed some light on the subject of phase advancement? Or other possible causes of the speed limitation?
The motor is a Faulhaber 3564K by the way.
Best Regards,
Johan