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Thread: Huanyang VFD Macro/ Plugin

  1. #73
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    Default Re: Hunayang VFD Macro

    Hi Dan , What I was relating to is IF there was a way to feed pulses from teh VFD into teh index signal input of UCCNC then you would have a direct readout of the atcual rpm and NOT have to use a special DRO to display it. That way you would NOT have to monkey with a screenset (;-)

    It could also be used to create a Cruise control so that IF teh RPM dropped below a certain % of Set RPM then UCcnc could lower the feedrate to allow the spindle to catchup or at least to maintain. Once teh RPM catches up then go back to 100% FRO.

    I had done this long ago with Mach3 and it worked very well for a router.

    Just a thought, (;-) TP



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    Default Re: Hunayang VFD Macro

    Quote Originally Posted by vmax549 View Post
    Hi Dan , What I was relating to is IF there was a way to feed pulses from teh VFD into teh index signal input of UCCNC then you would have a direct readout of the atcual rpm and NOT have to use a special DRO to display it. That way you would NOT have to monkey with a screenset (;-)

    It could also be used to create a Cruise control so that IF teh RPM dropped below a certain % of Set RPM then UCcnc could lower the feedrate to allow the spindle to catchup or at least to maintain. Once teh RPM catches up then go back to 100% FRO.

    I had done this long ago with Mach3 and it worked very well for a router.

    Just a thought, (;-) TP
    I was halfway through writing another essay when the light bulb came over my head and understood what you were asking/suggesting . I know all of HY read function commands and don't think this is possible, but Its late with a few glasses of wine and definitely worth taking a deeper look with a clearer head.

    Thanks,
    Dan



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    Default Re: Hunayang VFD Macro

    Quote Originally Posted by Dan911 View Post
    I was halfway through writing another essay when the light bulb came over my head and understood what you were asking/suggesting . I know all of HY read function commands and don't think this is possible, but Its late with a few glasses of wine and definitely worth taking a deeper look with a clearer head.

    Thanks,
    Dan
    To detect the actual RPM you must have a feedback from the spindle, not the VFD. The spindle can spin slower even if the VFD outputs the right frequency. VFD never shows the real RPM, only the calculated RPM based on the output frequency, so what vmax says is not possible unless you have feedback from the spindle.

    Current measurement is possible, SVC drivers measure the spindle current, and an increased current indicates dropped RPM in which case the VFD can compensate for that drop and increase the RPM back to the set one. My VFD is SVC type but have had no time experimenting with it, just that I know it is pretty good at keeping a constant speed with variable load. I have not checked if the RPM reported by the VFD is the real RPM or just a simple calculated RPM based on the frequency, but since it measures the current it should be fairly easy for the VFD to give a pretty real picture of the RPM. I think SVC is the way to go, not manipulation of feed rate in UCCNC. SVC drivers are pretty cheap today and they are really very good.



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    Default Re: Hunayang VFD Macro

    Ok...I think this went a little off topic although some very good info.

    I created a user input field in the HYPLUGIN8 set up to use what ever labelnumber they choose for the plugin to write to for Sact field. Of course they will have to change the labelnumber(870) for Sact field to match whatever they input in this field. Hopefully this will help avoid conflicts with users other macro's, screensets and future UCCNC versions.

    My question is is there a way to manipulate UCCNC to output the RPM with using its existing labelnumber(870) with just using the RS485 connection. This is what I interpreted what TP was suggesting.



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    Default Re: Hunayang VFD Macro

    It does not need to an output from teh RS485 side it could be a digital AUX output that could be feed to UCCNC. I did notice there was a Freq output possible on one of the aux outputs ?? Would that be for actual rpm or something else ??

    (;-) TP



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    Default Re: Hunayang VFD Macro

    Sorry TP its just not clicking in for me, when I say using RS485 what I mean is writing to VFD and using information it provides to feed UCCNC.

    If you can answer this one question for me it may help make things clearer to me. I can not write to the Sact field (870) because UCCNC will continually write over it.

    Where and what data is UCCNC using to write in the Sact field(870) ?

    Dan



  7. #79
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    Default Re: Hunayang VFD Macro

    I think it uses the index signal?

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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    Default Re: Hunayang VFD Macro

    Quote Originally Posted by Dan911 View Post
    Hey bs85,

    This is the second time I heard of it not showing up in the plugin list and a little confused why, no trouble on my end. Try the version below, you will have to input your labelnumber for your Sact field in the configuration set up. Please let me know if this works for you, ver 1.0006 uses a lot of unnecessary CPU usage.

    Attachment 350450
    Hi Dan,

    This version loaded.

    Thanks Brian



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    Default Re: Hunayang VFD Macro

    Thank you Gerry, I think the editable Sact field is going to do for now. Great Idea!

    Dan



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    Default Re: Hunayang VFD Macro

    Quote Originally Posted by bs85 View Post
    Hi Dan,

    This version loaded.

    Thanks Brian
    I thought it would, I found a glitch that for some reason didn't effect me but obviously can effect others.

    Thanks for replying back,
    Dan



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    Default Re: Hunayang VFD Macro

    Anyone who downloaded and using this plugin it is strongly recommended that you use this latest version below 1.0008. Its the same version as I posted for bs85 except zip includes set up instructions.


    HYPLUGIN8.zip



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    Default Re: Hunayang VFD Macro

    Hello everyone, I have another updated HYPlugin. I do thoroughly test before I post but have to admit I didn't with the updated editable Sact field. I missed one of the error checking methods that uses this field and was causing the frequency to be continually sent to VFD. Not a biggie but wouldn't be running as efficient as it should.

    This should be final version unless some1 reports a bug.

    HYPLUGIN8.1.zip



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