Third-party VFD spindle won't spin up at all

Motor won’t turn on. First time running with automatic speed control on this machine. Ran thru all the programing on the unit again. No results.

when you say “automatic speed control” do you mean a bitrunner?

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This is the speed controller.

Oh, ok. I have no knowledge on that. I though you where talking about the bitrunner accessory that turns on/off the router.

1st thing I noticed is that you haven’t installed a ground wire from the spindle to the vfd to electrical ground. Mine would not run without it. I also bought a 4 conductor shielded cable from the vfd to the spindle. My controller kept failing until I installed the shielded cable.

and you’ve changed the value of $30 to 24000? ($30=24000)

Yes, I have. And I’ve checked all the settings on the box as well.

Thanks, Phil. I’m not an electrician so you gotta speak English for me. What’s VFD?

Variable Frequency Drive.

Also, check if you have a VI/VR jumper on the VFD board, see pictures in this post/thread

This is a VFD:

Do you have a link to where you got it? It would be referred to (most likely) as a VFD in the documentation too.

(edit: I think you were joshing… You wrote VFD in the post title)

Yeah, I checked that too.

Mine (different model) didn’t work until I modified the setting that disables speed control using the knob on the front panel and enables speed control via the analogue input.

Additionally, mine required a daughter board to be attached that converted the Carbide3D control board’s PWM output into a true analogue signal (0-10v too).

Links to the model number might help others determine if these sorts of things apply here.

https://www.amazon.com/gp/product/B078HRTBZ7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

P.S. (My title was edited after I posted. Don’t know why.)

Thanks for the link! If you search for HY01D511B on this forum you’ll see a few other people discussing their setup with this model. Might be worth a read?

One thing to check (if you haven’t) is that the spindle starts up at all - either with the knob, or by applying 5v to the relevant input.

Also maybe review how you’ve connected it to the C3D board… did you wire up a plug for the BitRunner socket or wire it to the PWM pins on the board itself?

The title edit was probably to remove possible confusion with C3D’s just release spindle?

They probably edited it to clarify that it was not a spindle, or router motor that is sold by Carbide 3D. Your original title was pretty vague.

Reset the VFD to Manual Mode. Spindle responds to Run, Stop, and RPM Dial at a very low RPM.

I forgot to ask how you are testing starting and stopping the spindle from your computer. Are you using Carbide Motion?

What GCode command are you issuing to start up the spindle?

Afraid I don’t know anything about Gcodes. I save the Gcode in Create and it runs in Motion. That’s the limit of my expertise. But to test the spindle I go to JOG and turn on spindle from there. Speed control wires coming from Control Board to the VFD reads 0.5V when switched on, and zero V when switched off. So a little power is coming from somewhere. Been told it should be 5V not 0.5V.

Turning the spindle on from JOG only works for a BitRunner or for a Nomad. It (at least in the past) set a speed that is too slow for the spindle (below its minimum run speed).

You have to test it using the MDI console and sending GCode commands.

(edit: I know it’s a pain but you probably need to consider telling people what you’ve done and are doing up front so they don’t have to interrogate you so much)

(so you don’t need to search, go to the MDI screen and type M3S10000 to turn it on at 10000RPM, and M5 to turn it off)

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