I am using the xpro to control my spindle using PWM. I have it working in that I can turn the spindle on and set a speed. If I send the command M3 S24000 then the spindle will spin up to about 20,000 RPM and the voltage on the PWM line goes up to 4.10V.
My understanding is that the PWM signal is 0-5v but the maximum I can get is only 4.10v (this is measured at the xpro). Any suggestions?
I am using the xpro to control my spindle using PWM. I have it working in that I can turn the spindle on and set a speed. If I send the command M3 S24000 then the spindle will spin up to about 20,000 RPM and the voltage on the PWM line goes up to 4.10V.
My understanding is that the PWM signal is 0-5v but the maximum I can get is only 4.10v (this is measured at the xpro). Any suggestions?