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  1. #1
    Hi Everyone,

    I have acquired a broken little 6040 machine to repair, however I am having a little trouble.

    So far its had new drivers / steppers and is getting a ST-V2 board for now - controlled from a uc300eth

    I am having trouble trying to determine the VFD connections to the BOB. ( VFD PRT E1500w )

    [ATTACH=CONFIG]28408[/ATTACH

    I am thinking the following:

    Spindle on/off - FWD
    Spindle on / off - COM

    0v-10v + AVI
    0v-10v - ?????

    24v - 24v PSU
    Grnd - 24v PSU

    Is there anyone who can help ? :-)
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by Hulksmash; 17-06-2020 at 05:11 PM.

  2. #2
    JAZZCNC's Avatar
    Lives in wakefield, United Kingdom. Last Activity: 22 Hours Ago Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 8,413. Received thanks 1,442 times, giving thanks to others 108 times. Referred 1 members to the community.
    Need to see the ST-V2 manual do you have a link.?

    I've got a feeling that the board uses a common Gnd not an isolated Gnd for the Analog output. In which case I wouldn't use it.
    -use common sense, if you lack it, there is no software to help that.

    Email: dean@jazzcnc.co.uk

    Web site: www.jazzcnc.co.uk

  3. #3
    Thanks Dean.

    Here is a link to one with the same layout

    https://www.omc-stepperonline.com/download/ST-V2.pdf

    Is there anyway I can check that ?

    I have a ground ( presumably common) for limit and EStop.

    Thanks again for your help. Really appreciated.

    Mike

    Ps. How would you wire it if able too. ?

  4. #4
    There is a post here re something similar but I dont fully understand it.

    https://www.cnczone.com/forums/gener...utput-0-a.html

    Click image for larger version. 

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  5. #5
    Quote Originally Posted by JAZZCNC View Post
    Need to see the ST-V2 manual do you have a link.?

    I've got a feeling that the board uses a common Gnd not an isolated Gnd for the Analog output. In which case I wouldn't use it.
    Could you recommend an alternative low cost one if I cant use this too please.

    Part of me thinks to just buy a cheap VFD - got to be better than one in the machine

  6. #6
    Hello,

    Have you got this sorted as I have the same issue? I too have a CNET 6040

    Just to recap my issue, I'm trying to connect my VFD (PRT-E1500W) to my BOB (Manual/book shown here - https://www.omc-stepperonline.com/download/ST-V2.pdf).

    I've not had conformation of this yet, apparently the PWM on the right of the BOB is for Digital VFD, where as the PWM terminal on the bottom row (4th from the right) is for analogue VFD. Can anyone confirm this please, as I understand the bottom terminal could be connected to the AVI terminal of the PRT-E1500W.

    I'm currently comfortable with all the other terminals.

    Thanks in advance of moving this issue forward.

  7. #7
    Quote Originally Posted by Extremeoffroader View Post

    I've not had conformation of this yet, apparently the PWM on the right of the BOB is for Digital VFD, where as the PWM terminal on the bottom row (4th from the right) is for analogue VFD. Can anyone confirm this please, as I understand the bottom terminal could be connected to the AVI terminal of the PRT-E1500W.
    .
    Sorry, I got the PWM ports the wrong way round. The right hand is 0-10V analogue and the bottom is PWM digital.

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