Well I killed my spindle and vfd today. How can I test the pwm output on the carbide board?

[RichCournoyer (Richard Cournoyer)]

What is your $30 setting?

And there is several discussions that has taken place here in the community, is is one of them:

Testing PWM Output

I’ve got a new Shapeoko XL with a 2.4e CMB. I installed pins for PWM and GND to wire up a VFD as discussed in numerous posts. I’m running CM4 build 416. Start/Stop Spindle has no effect in CM. I’ve tried Manually sending M3S10000 and M5 in MDI, no joy. I can see in the log that it’s being passed to the controller, but has no effect. I’ve checked and rechecked VFD settings. I’ve reset the VFD and re-entered all the settings just to be sure on that end. Not ruling it out, but pretty sure the VFD…