Huanyang VFD and spindle problem - VI/GND drawing voltage from my controller

[Mr*Beaver]

I just had a go at something else — I hooked the spindle up to an older board and didn’t have this voltage draw issue.

At the same time I didn’t connect the switch connections as they go through a relay on an ardunio board.

I then hooked up the Pheonix board with a relay to switch the on/off.

Instead of 3v draw I only had 0.8 and could control the spindle with a better level of control. However the relays I used don’t have a low enough trigger voltage.

There is correlation between the switch on/off and the PMW/gnd which seems really strange.

[Ger21]

I've re-setup the vfd with the settings as per this page:

http://www.halfbakedmaker.org/blog/post_id

I wouldn't trust that website, as some of those settings are wrong. Virtually all cheap chinese spindles are 2 pole, and he says to set the VFD to 4 poles.

[Mr*Beaver]

Hi Gerry

Any better tutorials for setting up a VFD. Those are also the settings I was given by the supplier.

Luke

[Ger21]

PD003 and PD04 should be set to 400, not what that website says. I don't know of any one definitive tutorial, but there are a lot of threads at CNC Zone with the correct settings. Look for posts from "Mactec".
And be aware, that there are also lots of posts with the wrong settings.

[exflueger]

Hello Luke
Strange enough I have the very same problem. Exactly the same. But with another VFD (Fuling) and another board (Pokeys57CNC) and another Spindle. The VFD settings seem to be correct as I can perfectly operate the Spindle manually. But when I connect to the Board - as you did - I have the same effect as you had.
Therefore: Did you solve it? If yes: how? :-)

And hint is appreciated!

[Mr*Beaver]

Unfortunately not. I ended up throwing in the towel and sending the board back which was a real shame as it looked like a good board. I ended up using a Arduino mega flashed with GRBL. I just upgraded to the new CNC xpro V4. Both used external drivers. I haven't had an issue since...