Need help waking up an older doosan puma 12
Close
Login to Your Account
Results 1 to 10 of 10
  1. #1
    Join Date
    Mar 2013
    Location
    Missouri
    Posts
    1,842
    Post Thanks / Like
    Likes (Given)
    1287
    Likes (Received)
    1003

    Default Need help waking up an older doosan puma 12

    We recently were given an old doosan puma 12 with fanuc 10t for the cost of hauling it back to the shop. It seems like it was used very little as the buttons are all legible and everything is in very good shape.

    We got it placed and wired up and when we try to turn it on we hear the cooling fans and when we press the on button we heard a relay latch momentarily on this board, said board also has a red light come on after the relay un latches.
    Any idea of where to check for the cause of the problem?

    Batteries show that they still have voltage


    Sent from my iPhone using Tapatalk

  2. #2
    Join Date
    Jan 2014
    Country
    UNITED STATES
    State/Province
    Washington
    Posts
    5,468
    Post Thanks / Like
    Likes (Given)
    989
    Likes (Received)
    3053

    Default

    The symptom you describe usually points to a problem with the CNC power supply (black boxy thing attached to the right side of the mother board). On a machine that age, many power supply issues are caused by the electrolytic capacitors going bad which causes noisy or out of range voltages. Cheap and easy first step to replace them.

  3. Likes alonzo83, Hardplates liked this post
  4. #3
    Join Date
    Mar 2013
    Location
    Missouri
    Posts
    1,842
    Post Thanks / Like
    Likes (Given)
    1287
    Likes (Received)
    1003

    Default

    Any way to check that it is the power supply?
    Tha caps don’t look bad at all.


    Sent from my iPhone using Tapatalk

  5. #4
    Join Date
    May 2019
    Country
    UNITED STATES
    State/Province
    Pennsylvania
    Posts
    1,613
    Post Thanks / Like
    Likes (Given)
    811
    Likes (Received)
    981

    Default

    An oscilloscope for the power supply or an LCR meter to test the caps themselves. When caps are referred to as leaky it means electrically leaky, not gooooeee leaking out. To check the caps you can't just use a simple multi meter, they need to be check with an LCR meter. I usually test them for ESR

  6. Likes alonzo83 liked this post
  7. #5
    Join Date
    Mar 2013
    Location
    Missouri
    Posts
    1,842
    Post Thanks / Like
    Likes (Given)
    1287
    Likes (Received)
    1003

    Default

    I did check the caps there all quick to come up to about 2.6 kf and stop climbing. Not sure if that means anything at all.


    Sent from my iPhone using Tapatalk

  8. #6
    Join Date
    Jan 2014
    Country
    UNITED STATES
    State/Province
    Washington
    Posts
    5,468
    Post Thanks / Like
    Likes (Given)
    989
    Likes (Received)
    3053

    Default

    Quote Originally Posted by alonzo83 View Post
    ......Tha caps don’t look bad at all.
    Man you're way better than me if you can look at a cap and tell it's not bad. I reckon you don't need help then.

  9. #7
    Join Date
    Mar 2013
    Location
    Missouri
    Posts
    1,842
    Post Thanks / Like
    Likes (Given)
    1287
    Likes (Received)
    1003

    Default

    Quote Originally Posted by Vancbiker View Post
    Man you're way better than me if you can look at a cap and tell it's not bad. I reckon you don't need help then.
    No I am really that ignorant. I honestly thought the caps would have fluid leaking from them.


    Sent from my iPhone using Tapatalk

  10. #8
    Join Date
    Jun 2011
    Country
    UNITED STATES
    State/Province
    New Jersey
    Posts
    1,345
    Post Thanks / Like
    Likes (Given)
    751
    Likes (Received)
    564

    Default

    FanucWorld (T.I.E.) has spare parts.

  11. #9
    Join Date
    Mar 2013
    Location
    Missouri
    Posts
    1,842
    Post Thanks / Like
    Likes (Given)
    1287
    Likes (Received)
    1003

    Default

    I found a local guy that can test the caps on the power supply. Anything else I can check?


    Sent from my iPhone using Tapatalk

  12. #10
    Join Date
    Jun 2019
    Country
    UNITED STATES
    State/Province
    Kentucky
    Posts
    56
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    4

    Default

    Check power to the relays and coming out of them and see if one is stuck.


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •