[Emc-users] Help with PWM spindle control

[Tony Z. <zam...@co...>]

Hi all,

I'm attempting to set up EMC2 to generate a PWM
signal for spindle speed control. I put a DVM on the
PWM parallel port pin in hopes to see an average
voltage of the PWM signal. But all I see is about 90mV,
and it never changes.

I tried MDI commands like:

M03 S100
and
M03 S2000

I'm fairly new to EMC2. Can someone tell me
what is required to activate the PWM output?

Thanks!
Tony