Huanyang VFD - LinuxCNC 2.7.0 - Spindle speed

I need some help. I'm certain I must be overlooking something simple. Hopefully someone can point me in the right direction. I upgraded to 2.7.0 from 2.6.9. I made the appropriate changes in my ini and hal files. Everything I've tested works except the spindle speed. It's off by 8x. I command S100 and I get 800 RPM. S200=1600RPM S1875=15000RPM and so on. I'm using the Chinese 2.2KW spindle with the Huanyang VFD normally sold together controlled over a "modbus" interface.

I went back to 2.6.9 and restored config. All is well again. I went back to 2.7.0, speed is off again. I've searched all configs, and I don't appear to have any scaling commands. I do have a custom panel that displays RPM, and it agrees with what the VFD shows. I've gone through and double checked the VFD setting PD001-PD010, and PD143-PD144. Any ideas where I should look?

Thanks,
Craig

Did you see this...
www.linuxcnc.org/docs/html/getting-start...c.html#_huanyang_vfd
and
www.linuxcnc.org/index.php/english/forum...xcnc-27?limitstart=0

Rick G

Yes, the required hal/ini file changes I mentioned were a result of the docs. I also went through that thread numerous times to verify my settings. Spindle control does work, it's just 8x expected value. Like this post fixed in the old driver www.cnczone.com/forums/phase-converters/...e-2.html#post1155764 . The driver I was using with 2.6.9 was from post #101 of that thread by shadowbane.

Is this where the issue is at line 256? git.linuxcnc.org/gitweb?p=linuxcnc.git;a...60a53b00bb66;hb=HEAD

Comparing with alan_3301's fix, this seems to go back to the original way.

Rereading that last thread yet again, one thing I didn't try was setting PD144 back to 50. Right now it's at 3000, I think. I've slept since I last looked at it.

Thanks,
Craig

I set PD144 to 50, the max RPM I saw was 400 (8*50) with S24000.

I added -S 24000 in custom.hal as per the man page
loadusr -Wn spindle-vfd hy_vfd -n spindle-vfd -d /dev/ttyUSB0 -p none -r 38400 -s 1 -t 1 -S 24000
Then it goes to 8000 RPM with S10000. S2000=1600RPM S4000=3200 S8000=6400 S24000=19200
Crazy thing is it all worked correct with 2.6.9.

After two hours trying everything I can think of, I put everything back for 2.6 and installed 2.6.10. All is well.

I copied the hal and ini files from 2.6 and 2.7 into a common directory added extensions for 2.6 and 2.7 respectively, and diffed them.
The only differences were for the name changes/removed pins for the new driver, and removing the hm2 pet_watchdog which is no longer supported.

Any other suggestions as to what to look for/at, I'm game to reinstall 2.7.

Craig

Looks like it was indeed a bug. I see this in the changelog "hy-vfd: set P144 correctly"

I went and installed 2.7.1, and tried with my previous 2.7.1 config, and it's working perfectly now.

Thanks to the devs!