Starting from scratch (again) - Next Step - VFD

OK, encoder does something (at least there's numbers on the screen in location and velocity, nothing on the "scope" so at least it's working. I'll have to see about gearing it to the spindle somehow but if I can it should be better than making my own 100 count disc

Now somehow I screwed up my other settings and I've got a new error stopping Lcnc from loading, Getting pretty good at finding those now at least

Thanks again
M

OK, semi success (well not really but no smoke so I've got that going for me...)

I've got axis movement, e-stop and limit switches working (x-axis limit is just hanging off the end of the machine but that's another story)

Spindle VFD powers up so the contactors etc are working but there's something wrong with my wiring on the 7i76 > VFD

Are the Opto switches supposed to be connecting ENA+ and ENA- and then DIR+ and Dir- or are they connecting the appropriate ones to the spindle signal (ie spindle - to ENA + type of thing?

When I turn the spindle on the enabled light on the VFD isn't lighting up

If I short E1 and E2 from the VFD it lights up and the motor tries to turn very slowly
*** I doubt I have the settings for the VFD in LinuxCNC so the speed of the motor is going to be out to lunch ***

Looking at some wire sample diagrams and they have the spindle + (10v I guess) connected to pins 3, 6 and 8 (spindle +, enabled + and direction +) but I think I only need the spindle + connection

but it's not clear (to me) in the manual what connection is being made on the enabled or direction on the 7i76 and I since they are opto I can't test without it being powered up (trying to keep the smoke inside for now)

Right now I think I need to connect my E1 pin to both ENA- and DIR- and then my enabled (E2) to ENA+ and dir (D) to DIR+
(or maybe vice-verse depending on the polarity of the VFD)

Does any of this make sense?
Thanks
M

Just tried E1 and E2 to pins 5 and 6 (ENA+ and ENA- and the enabled light turns on but stays on regardless of if the spindle is commanded on or off in Lcnc so back to the manual for more reading.
(plus I checked the output on the spindle and it's only like .5v regardless of the speed commanded so something's really out on my setup/wiring)
M

if the VFD stays on regardless of LinuxCNCs spindle enable state,
this suggests the you have the ENA+ and ENA- swapped
(wrong polarity)

That actually makes sense, I'll go check that after supper here.
Any chance the ENA- and DIR- are common or are they completely isolated from each other?
M

They are isolated from each other