Schaublin 125-CNC retrofit.

Here is the update on my VFD braking.

Weird one here. I have three physical buttons on my control panel connected to halui.spindle.0.forward, halui.spindle.0.reverse, and halui.spindle.0.stop. These are working normally.

But if I type an M3 or M4 command, I get no spindle rotation. It was working before, and just stopped working abbruptly. I would have expected the external buttons to trigger the same signal path as M3 M4? Any thoughts what I need to be looking for would be appreciated.
Cheers,
Mark

I may be totally wrong, but I think when using M3 for the first time in MDI after startup, you need to give it a speed (M3 S400). Afterwards, that speed is assumed.

Thanks, but I gave it an S command, both on a separate entry before, and on the same entry as the M3, but that doesn't correct it. When I command spindle on with S100 M3, the green spindle turning indications on the Gmoccapy display goes on, but the VFD is not commanded. Pushing the physical button I get both the display indication, and the spindle turning.

I have no real idea what may be the problem. But for troubleshooting, check pins:
spindle.0.on
spindle.0.forward
spindle.0.reverse
[url=https://I have no real idea what may be the problem. But for troubleshooting, check pins: spindle.0.on spindle.0.forward spindle.0.reverse https://linuxcnc.org/docs/html/man/man9/motion.9.html] linuxcnc.org/docs/html/man/man9/motion.9.html [/url]

If you have spindle.0.on and spindle.0.forward on/true after a M3 command, then I imagine you have a HAL configuration problem. Have you published your configuration somewhere?

Thanks for looking at it.

I was also thinking that the last major change I did was to wire in the spindle VFD brake command. The system worked fine for some time after that, and then didn't.
I did add some Classic ladder Fu in there as well, but that was to the brake command, and spindle brakes normally when I stop it with the external button. I suspect there is something there though, like maybe the physical buttons change switches off the brake command, but the M3/M5 doesn't.

I have the HAL uploaded to the first thread, but haven't uploaded the most recent change, so I will update it this evening.