Centroid Acorn 0-10V Analog Control Help (Resolved)

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martyscncgarage
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Re: Centroid Acorn 0-10V Analog Control Help

Post by martyscncgarage »

jumps4 wrote: Thu Apr 01, 2021 9:27 am I took Marty's advice and updated to v4.64 the other day.
I must have copied over it when I moved my NC files from v4.18.
hello... thanks
Steve
Problem resolved or???
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jumps4
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Re: Centroid Acorn 0-10V Analog Control Help

Post by jumps4 »

Yes, as far as this topic is concerned.
Thanks
Steve
No Brains, No Headaches...
KJNC
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Re: Centroid Acorn 0-10V Analog Control Help (Resolved)

Post by KJNC »

Final update and recap.

When the shield for the 0-10V signal cable is grounded to VFD side there's noise totally drowning the signal.
However, when the shield is grounded to the control cabinet ground which uses a different circuit but the same garage power panel--the noise is reduced but still existent.

What I did to fix it is I bought a 220v rated inline noise filter from AutomationDirect for the VFD and now the frequency when running varies by only 0.2HZ at the most for the 0-10V signal. There is still ample noise on the spindle ground side (cannot ground shield there)... The control cabinet runs on 110V and the spindle is running off a longer 12 AWG cord to an unused dryer circuit with proper grounding (well there's continuity and the house is only 15 years old).

All considered I can't say what was precisely wrong but I did see some with issues until a noise filter was installed.
It works, I'll be getting the VFD into its own enclosure, and Centroid Acorn is rock solid.
martyscncgarage
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Re: Centroid Acorn 0-10V Analog Control Help (Resolved)

Post by martyscncgarage »

What make model VFD do you have?
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We can't "SEE" what you see...
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KJNC
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Re: Centroid Acorn 0-10V Analog Control Help (Resolved)

Post by KJNC »

martyscncgarage wrote: Sat Apr 10, 2021 9:25 pm What make model VFD do you have?
L510-203-H1-U

Single phase 3 HP unit.
Everything works fine--I've got probably 30 hours on it thus far and was rather careful to get all the settings correct.
I've only touched 3 VFDs and a single Acorn board in my life--so I'm no expert!
martyscncgarage
Posts: 9912
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Re: Centroid Acorn 0-10V Analog Control Help (Resolved)

Post by martyscncgarage »

KJNC wrote: Sat Apr 10, 2021 11:28 pm
martyscncgarage wrote: Sat Apr 10, 2021 9:25 pm What make model VFD do you have?
L510-203-H1-U

Single phase 3 HP unit.
Everything works fine--I've got probably 30 hours on it thus far and was rather careful to get all the settings correct.
I've only touched 3 VFDs and a single Acorn board in my life--so I'm no expert!
I have shied away from TECO VFDs....my experience with them has been hit and miss.
I have discovered and tested the Factorymation.com TD series VFDs for inexpensive small builds TD200 have no braking resistors, TD400 do.
I also use and like the GS3 series drives from Automationdirect.com

Glad you have things working well.
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
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ShawnM
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Re: Centroid Acorn 0-10V Analog Control Help (Resolved)

Post by ShawnM »

To further smooth out the fluctuations in the VFD add a #104 (0.1uF) cap across the analog output (AN GND and AN OUT) on the Acorn.
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