# Tool Enable Doesn't Work With Huanyang VFD

**URL:** <https://forum.onefinitycnc.com/t/tool-enable-doesnt-work-with-huanyang-vfd/9009>\
**Category:** Troubleshooting (X35/X50)\
**Created:** [November 18, 2021, 4:41am UTC](https://forum.onefinitycnc.com/t/tool-enable-doesnt-work-with-huanyang-vfd/9009 "2021-11-18T04:41:41Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [November 18, 2021, 5:59am UTC](https://forum.onefinitycnc.com/t/tool-enable-doesnt-work-with-huanyang-vfd/9009/4 "2021-11-18T05:59:29Z")

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Hey Branden,

on the other hand I would want everything that is said to work to really work. According to the [docs](https://buildbotics.com/manual-v1-1/#tooltab), “tool-enable” generally should work.

> [@WildMtnCraftworks](#):
>
> it appears that the tool enable (pin 15) does not change state when the tool type is set to Huanyang VFD specifically

Question, does the pin work when you set “tool-type” to another setting?

By the way, I remember that the other day Ghislain pointed us to a possible issue when using the [25-pin I/O port](https://buildbotics.com/manual-v1-1/#25pinioport):

> [@Huanyang VFD to Controller](https://forum.onefinitycnc.com/t/huanyang-vfd-to-controller/8589/29):
>
> I had similar timeout issue when I first install my VFD. My breakout board did not make contact with controller connector. At that time I noticed that I needed to apply pression on the breakout board to get OK status. During my test I was able to get it work while the nuts were removed. I finally replace both of them with shorter one (few mm) that were initially on my computer monitor. So Check this: A. First check if those nuts are fully tighten B. Second, check if the metal part is nea…

and Andy confirmed to know this issue too:

> [@Huanyang VFD to Controller](https://forum.onefinitycnc.com/t/huanyang-vfd-to-controller/8589/31):
>
> I had a similar problem, twice. Check connectivity (my network connector wasn’t connecting well, bad on me) and the same as @blaghislain above- check that all the nuts are tight and not stopping the breakout board from connecting full to the controller.

Did you already check this? But if you send M3 commands to the VFD, I assume your 25-pin I/O connector is well connected.

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