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  1. #1
    Join Date
    Feb 2010
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    0

    VMC 3020 issues

    Hello everyone, this is my first post and visit to this site. Looks like a great resource with lots of valuable data.

    I have a Bridgeport VMC 3020, with a Fanuc 21i controller. The machine is a 2002 vintage. We are experiencing a strange problem. As a job is cutting the table will suddenly skip... the z axis will rise and all motion except for the spindle will stop. The table will also skip with the machine sitting idle with no program loaded.
    This has been going on for a while now. We have to shut the machine down and restart it. Sometimes this works and other times we have to leave the machine sit overnight and when we start the machine in the morning we may get a few hours out of it before this happens again.
    We had a pair of techs in to look at it in June and after 2 days of messing around the machine stopped skipping, but they really did nothing concrete that solved the problem.
    Anyone have any ideas or a similar experience?

    Thanks

    Don

  2. #2
    Join Date
    Nov 2004
    Posts
    3028
    I have seen this as well. In the rear cabinet (electrical) top left are 2 small Fanuc modules.
    They convert the encoder signals to optical for the control.
    You may need to replace one or both. I believe my customer had a Z axis issue but that slaves from the master unit. I replaced both for piece of mind.

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

  3. #3
    Join Date
    Feb 2010
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    0
    Thank you, I will take a look at those tomorrow, are those parts something that can be ordered direct from GE Fanuc or is there a better (ie. cheaper) source?

  4. #4
    Join Date
    Mar 2010
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    0
    Hello I have the same problem with my bridgeport vmc 3020 And cannot find anywhere the two fanuc modules, does anyone know where I can find them

  5. #5
    Join Date
    Nov 2004
    Posts
    3028
    We ordered them from Fanuc.

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

  6. #6
    Join Date
    Mar 2010
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    0
    Hello George I have already tried with fanuc usa and they told me they no longer make does that interface, so dont know what to do???

  7. #7
    Join Date
    Nov 2004
    Posts
    3028
    I will check with my parts guy. He bird dogs what I need. I just give him the part numbers.
    GE-FANUC merged with Fanuc USA and is now FANUC CNC.

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

  8. #8
    Join Date
    Mar 2010
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    0
    Thank you George the part numbers of the two cards are:
    ASVU1
    A02B-0259-C180
    ASVU2
    A02B-0259-C181
    Cause I spoke with fanuc USA and they dont have costumer service in my area.
    thanxs

  9. #9
    Join Date
    Nov 2004
    Posts
    3028
    I forwarded the parts numbers to my parts guy. He informed me that the last time he ordered a set of these, one came from GE Fanuc at $2500.00 and the other from Fanuc USA for $500.00. It seems neither one had both. I will inform you of what he digs up.

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

  10. #10
    Join Date
    Mar 2010
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    0
    thank you very much would be waiting for your answer

  11. #11
    Join Date
    May 2011
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    0
    hey everybody it seem like ya are having alot of different problems with the bridgport 3020 i was looking at a used 2000 model and i was just wandering would ya buy another 1 or a different brand ??? thanks for your input

  12. #12
    Join Date
    Feb 2011
    Posts
    100
    Quote Originally Posted by steve eades View Post
    hey everybody it seem like ya are having alot of different problems with the bridgport 3020 i was looking at a used 2000 model and i was just wandering would ya buy another 1 or a different brand ??? thanks for your input


    I have a 2216 that ive had since new. Runs every day for 12 hours. Never a hickup untill it got wet. But just cleaned it out and back to work.
    The only irratating thing with them is the memory cards and slot.

  13. #13
    Join Date
    Jan 2011
    Posts
    0
    Apparently, these yellow Fanuc converter boxes are not available. We actually bought a salvage VMC 3020 to fix our VMC 2216 just to get the boxes.

    Does anyone know of a place they can recommend that can repair these?

  14. #14
    Join Date
    Nov 2004
    Posts
    3028
    Has anyone tried asking Fanuc if they can be repaired? There are a lot of additional places making a living repairing and exchanging Fanuc devices (I guess because Fanuc charges a premium dollar).

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

  15. #15
    Join Date
    Dec 2010
    Posts
    31
    I am looking for Manuals of Bridgeport VMC 3020 with Fanuc control year 2000(machine manuals only). I will pay for it and you may reach me [email protected]

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