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  1. #1
    Join Date
    Nov 2010
    Posts
    0

    MC500H Alarm 661

    Hello everybody,

    I have a Okuma milling machine MC 500H with Pool Palet Changer and when I was trying to set up the Pool palet I pushed the ESTOP button and after it is coming the alarm 661 PLEX and I cannot reset anymore since ,it said that the setting operation was intreruppted and the job was not done to the end, and with that alarm I cannot operate the pool palet or do any move with the pool palet ansembly.
    Pls advice.

    Thanks a lot.
    Have a nice day to all

  2. #2
    Join Date
    Mar 2009
    Posts
    1982
    1. Find "check mode" in manual.
    2. Use appropriate "check mode" setting to operate:
    - pallet unclamp
    - pallet axis ("B") manual rotation by wheel handle.
    3. Place pallet axis in the nearest step location
    4. Check, if this step number is set po present APC sequnce numbers (two settings at least, it's not in one place)
    5. Could be enough.
    If it's not enough, you need to check what positions are wrong for that certain APC step.
    It's not complicated basically, the problem is to avoid next mistake. Better to ask local Okuma troubleshooter to do the adjustments

  3. #3
    Join Date
    Nov 2010
    Posts
    0
    Quote Originally Posted by Algirdas View Post
    1. Find "check mode" in manual.
    2. Use appropriate "check mode" setting to operate:
    - pallet unclamp
    - pallet axis ("B") manual rotation by wheel handle.
    3. Place pallet axis in the nearest step location
    4. Check, if this step number is set po present APC sequnce numbers (two settings at least, it's not in one place)
    5. Could be enough.
    If it's not enough, you need to check what positions are wrong for that certain APC step.
    It's not complicated basically, the problem is to avoid next mistake. Better to ask local Okuma troubleshooter to do the adjustments


    Machine can change pallet ok (palet go into machine) but the palet pool is the problem.I have a palet pool with more than 2 palets.

  4. #4
    Join Date
    Mar 2009
    Posts
    1982
    the same philosophy.
    1. You need to guide palet pool to logical sequence condition and to set this logical sequence number into control.

  5. #5
    Join Date
    Nov 2010
    Posts
    0
    Quote Originally Posted by Algirdas View Post
    the same philosophy.
    1. You need to guide palet pool to logical sequence condition and to set this logical sequence number into control.
    This I try to do but my palet pool is dead and I think because of alarm active 661 . I cannot do any action with my palet pool control panel(I have a separate control panel for palet pool).
    When I do the APC the sequence is OK until it should move the pool to take another palet in machine and because it not move it take same palet in machine.
    How can I remove the active alarm 661 PLEX?
    Thanks a lot for your answer.

  6. #6
    Join Date
    Mar 2009
    Posts
    1982
    it looks that from machine side it's all correct - machine takes back the same pallet since next is not ready.
    So, the problem located on pallet pool only. You need to operate pallet pool control at manual adjustment or service mode. Sorry, don't know much about it - there are different models with different adjustments. I would start from reading the manual

  7. #7
    Join Date
    Mar 2012
    Posts
    15
    Quote Originally Posted by tavios View Post
    How can I remove the active alarm 661 PLEX?
    Thanks a lot for your answer.
    hi

    to eliminate
    Plex 661 alarm control unit have to put pallets on hand then put the switch on magazinne to setup station out
    then press the start button next to
    it came palette station setup
    pull it out by clicking on "Carry Out" above the stop button on the right
    then press RESET on cnc machine

    done

    remember pallet must be in store that is next to the other 10

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