Huanyang VFD and Mesa 7i76e stuck at 6000 rpm

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21 Jul 2020 15:51 - 21 Jul 2020 15:54 #175348 by PCW
I would check lincurves output and x,y values

That is, if you have a single X value of 24000 paired with a Y value of 24000
there's not any reason you should not get a lincurve output of 24000 with an input of 24000
Last edit: 21 Jul 2020 15:54 by PCW.
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21 Jul 2020 16:10 - 21 Jul 2020 16:16 #175349 by Stran_ge
so as you can see on the attached image i tell the vfd/spindle to go 7700 rpm but it stays at 6000 ( i tired that with numerous values).

with the previous hal config. i was able to change the speeds even tho they were far off.

I cant attach my image even tho it is small enough for some reason so i can only post an imgur link, sry.
https://imgur.com/a/H25buvZ


Do you think it would help if edit my Ini min_limit to 6000 ?
My vfd is set up to 100hz ~ 400Hz with 0~10v but software is prob. thinking 0~400 Hz is 0~10v
Last edit: 21 Jul 2020 16:16 by Stran_ge.

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21 Jul 2020 16:14 - 21 Jul 2020 16:15 #175350 by PCW
Can you post your current hal/ini files?

I just tested this and linucurve acts as expected with the values I posted,

that is

loadrt lincurve personality=3
addf lincurve.0 servo-thread

setp lincurve.0.x-val-00 0
setp lincurve.0.y-val-00 0
setp lincurve.0.x-val-01 6000
setp lincurve.0.y-val-01 0
setp lincurve.0.x-val-02 24000
setp lincurve.0.y-val-02 24000

outputs 0 at a commanded RPM of 6000 and 24000 at a commanded RPM of 24000
and a correct interpolated value for commanded RPM values between 6000 and 24000
Last edit: 21 Jul 2020 16:15 by PCW.
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21 Jul 2020 16:20 - 21 Jul 2020 16:37 #175351 by Stran_ge
PCW i think i found my error here, i still had loadrt lincurve personality=4

i changed it to 3 and now im only round about 200-300 rpm off of what i want.

Is that acceptable or still bad ?

File Attachment:

File Name: configv5_2...21-2.ini
File Size:5 KB

File Attachment:

File Name: configv5_2...21-2.hal
File Size:13 KB
Attachments:
Last edit: 21 Jul 2020 16:37 by Stran_ge.

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21 Jul 2020 17:23 #175353 by PCW
since that's within a percent or so it should be fine

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10 Jul 2021 07:56 #214161 by Sadmeatball
Hi, Nils

I'm on my way to pair Huayang Vfd to mesa 7i76e

I also connected the same as andypough explained

My question is what do you mean by "i had to set the Jumper on my VFD from 2&3 to 1&2 "?

Please enlighten me..

Big Thanks

Cakra

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29 Jul 2021 20:29 #216265 by hodianmkr

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