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IndustryArena Forum > Machine Controllers Software and Solutions > Fanuc > Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms
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  1. #21
    Join Date
    Dec 2009
    Posts
    953

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    what is the code from power supply?
    from picture i can not distinguish.

  2. #22
    Join Date
    Jan 2009
    Posts
    52

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    Have you measured power at the that top plug? (Usually 220vac). If you have power there then it may be in the power supply. Try removing all the jumpers between it and the spindle drive to make sure that another unit is not dragging it down. My documentations shows at least 1 fuse on the circuit board in the power supply. (if you check for it make sure it has been powered off for more than 20 min).

  3. #23
    Join Date
    Jun 2006
    Posts
    240

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    Quote Originally Posted by zavateandu View Post
    what is the code from power supply?
    from picture i can not distinguish.
    A068-6087-H126

  4. #24
    Join Date
    Jun 2006
    Posts
    240

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    Quote Originally Posted by gwiz View Post
    Have you measured power at the that top plug? (Usually 220vac). If you have power there then it may be in the power supply. Try removing all the jumpers between it and the spindle drive to make sure that another unit is not dragging it down. My documentations shows at least 1 fuse on the circuit board in the power supply. (if you check for it make sure it has been powered off for more than 20 min).
    I get about 215v. I pulled the power supply and found two fuses on the board that has the LED display (5 amp and 2 amp) Both are good.

  5. #25
    Join Date
    Dec 2009
    Posts
    953

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    you can power up the control power board of the power supply without beeing attached to powwer board,only to see if it gets the light led on or no.

  6. #26
    Join Date
    May 2018
    Posts
    26

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    Quote Originally Posted by Fadal Error View Post
    Power is not even getting to the power supply. It stops at the contactor which is two steps upstream. Something is keeping the contactor from closing. Would failure of the power supply shut that down?
    Sorry for late response.
    I was referring the power supply that mounted on Fanuc 0M control, the part number would be something like that A16B-1212-****, not A06B-6087 which is servo/spindle power supply.
    Hope it helps.

  7. #27
    Join Date
    Jun 2006
    Posts
    240

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    I had a technician look at the machine last week. His conclusion is that the power supply seems to be dead too. He took the power supply to see if he can fix it. Otherwise I will pick up a used on on ebay. There are quite a few available.

  8. #28
    Join Date
    Jun 2006
    Posts
    240

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    He got the power supply repaired and we powered up the machine last night. I couldn't get the x-axis to home, but I found that another guy with a Mycenter 1 had the same problem and moving the home/limit switch dogs fixed the issue.

    The ATC is not working, but I will mess with it when I get some time. I have had enough adventures with it. Hopefully I have learned enough to get it working again.

    Thanks for all the help!

  9. #29
    Join Date
    Jan 2009
    Posts
    52

    Smile Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    Please keep us updated. That way we all learn along with you.

  10. #30
    Join Date
    Jun 2006
    Posts
    240

    Re: Kitamura with Fanuc OM control - 400 408 414 424 434 servo alarms

    Quote Originally Posted by gwiz View Post
    Please keep us updated. That way we all learn along with you.
    The ATC alarm was just the carousel indexing switch on the side of the machine. It was turned to the counter-clockwise setting. When I moved it to the center neutral position the alarm went away and the machine runs fine now.

    I got that tip from somebody on another forum who replied to my old thread regarding the ATC. Somebody else was having trouble with the tool pot ejecting tools. His timely issue gave me the answer to my ignorance.

    I actually wonder how long I was fighting that issue before and the fix was that simple.

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