UGS shows only half of the spindle input rpm

[jureprelesnik-spec]

Hello together,

I'm currently modding a genmitsu 3020 with a grbl 3.2 controller to run together with a VFD and 3 phase spindle.

Somehow in UGS when I hit M3 S24000, the display and output only show half of the rpm, so 12000 and 50 percent duty cycle on my PWM spindle control output.

I have set the $30 correctly to 24000, what am I missing?

Thank you!

[breiler]

Can you give us your settings from the $$ command?