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  1. #1
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    Jul 2013
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    Question Servo problem after battery change

    Hello,

    I really hope that you can help me.
    We are using CNC Brother TC-31A, after the "Low battery" icon appeared, we have replaced the batteries with new ones, but then a new error appeared:
    5066. 17 **M SERVO (BATT DROP)


    Below I've written all info found in operation manual on the 5066 error message
    Error message: M SERVO (***)
    Stop level 5: The servo system stops
    Reset level 3: Turn OFF the power. (An alarm cannot be reset otherwise)
    Cause: A servo error has occurred for the M axis. The cause differs depending on (***). Refer to the servo error list.

    SERVO ERROR MESSAGE
    Display: BATT DROP
    Cause: Battery voltage drop
    Solution: Replace alkaline battery for absolute encoder backup


    Already tried multiple times to turn off the CNC, put the old batteries back, but nothing helps.
    Have no idea how to fix that, it seems like no information is available via internet, that is why I think your experience could be appreciated very highly.


    Thank you in advance,
    Artur

  2. #2
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    Re: Servo problem after battery change

    I've got a reply to the question elsewhere, decided to post it here also, just in case anyone else is searching for the solution.


    Good afternoon Mr. Andrejev

    I guess the voltage of the backup batteries was cut for longer than 20-30 minutes.
    In this case the machine 'forgot' the magazine position and you need to set it again.

    Attachment 236518

    - After clearing the start point data, move the magazine position nr.1 to the tool change area and clear the start point once again.

    - Finally disable the ATC maintenance mode (I/O), (1), (Enter), (page up) set 0 for (ATC maintenance mode) and power the machine off and on again.

    - If everything went well you can start to work with the machine as usual.


    Kind regards / Mit freundlichen Gruessen

    Thorsten Schrodt
    Technical Support

    Nomura Trading Co., Ltd.

  3. #3
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    Aug 2008
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    6
    Hello.

    I have the same problem in Brother TC-31A. Link for attachment is invalid. Can you help me?

    Regards
    Grzegorz Szczepanski

  4. #4
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    Sep 2017
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    1

    Re: Servo problem after battery change

    Quote Originally Posted by gelos73 View Post
    Hello.

    I have the same problem in Brother TC-31A. Link for attachment is invalid. Can you help me?

    Regards
    Grzegorz Szczepanski



    From the Brother TC-31A & Brother TC-22A Maintenance manual page 9.1.16-1E (printed in 1999)


    Adjust the magazine position in ATC maintenance mode.


    1. Press [MANU] or [MDI],and then[I/O].
    2. Press[1],[ENT]and[PAGEDOWN].
    3. Press [CURSOR DOWN]until[ATC MAINT.MD]is highlighted and then press [1]and[ENT].
    4. Turn the <Power> switch off and then ON again.
    5. Press[1] for [CLEAR START P DATA].
    6. Turn the <Power>switch off and then on agian if [CLEAR START P DATA]displays [0].
    7. At this time, the pot No.of the ATC postion continues from [11] in case of No.1.
    8. In the case except No.1, it press [MAGZ] pot of the ATC position turns over to the ATC position at the pot of No.1.
    9. Press [1]for [CLEAR START P DATA].
    10. Turn the <Power> switch off and then on again if [CLEAR START P DATA] displays [0].
    11. Press [MANU]or [MDI], and then [I/0].
    12. Press [1] [ENT]and [PAGE UP].
    13. Press [CURSOR DOWN]until [ATC MAINT.MD]is highlighted, and then press [1]and [ENT].
    14. Turn the <Power> switch off and then on again.

  5. #5
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    Join Date
    Jun 2018
    Posts
    19

    brother tc32 bn ft

    hello do you have service manual or parameter manual for brother cnc interface unit?
    have problems with installing 2007 model brother tc32-bn ft
    5 axis
    If so, can you send it to hasanotomasyon@hotmail.com?

  6. #6
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    Jun 2018
    Posts
    19

    Re: Servo problem after battery change

    I can help for Brother cnc 5 axis BNFT series and tapping center.,
    hasanotomasyon@hotmail.com
    whatsapp number:+905357221418

  7. #7
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    Mar 2022
    Posts
    1

    Re: Servo problem after battery change

    Quote Originally Posted by Andartur View Post
    I've got a reply to the question elsewhere, decided to post it here also, just in case anyone else is searching for the solution.


    Good afternoon Mr. Andrejev

    I guess the voltage of the backup batteries was cut for longer than 20-30 minutes.
    In this case the machine 'forgot' the magazine position and you need to set it again.

    Attachment 236518 spider solitaire

    - After clearing the start point data, move the magazine position nr.1 to the tool change area and clear the start point once again.

    - Finally disable the ATC maintenance mode (I/O), (1), (Enter), (page up) set 0 for (ATC maintenance mode) and power the machine off and on again.

    - If everything went well you can start to work with the machine as usual.


    Kind regards / Mit freundlichen Gruessen

    Thorsten Schrodt
    Technical Support

    Nomura Trading Co., Ltd.
    Hello, do you have a service manual or parameter guide for the brother cnc inter unit? Have problems installing 2007 model brother Tc32-bn Ft

  8. #8

    Join Date
    Nov 2020
    Posts
    2

    Re: Servo problem after battery change

    Hi, i had the same battery issue on a TC32A this morning.
    I changed batteries and i followed the steps to recover the alarm and it worked.
    Unfortunately now i have the tool position shifted by 3 or 4 degrees for every position.
    I didn't try to do a tool change because i'm afraid that the arm wil collide...
    How can i solve this?

    Thank you if you can help me

  9. #9
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    Jan 2018
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    1396
    Quote Originally Posted by Fauz View Post
    Hi, i had the same battery issue on a TC32A this morning.
    I changed batteries and i followed the steps to recover the alarm and it worked.
    Unfortunately now i have the tool position shifted by 3 or 4 degrees for every position.
    I didn't try to do a tool change because i'm afraid that the arm wil collide...
    How can i solve this?

    Thank you if you can help me
    Could be servo indexing or homing position have shifted and need adjusting.

  10. #10

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    Nov 2020
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    2
    Quote Originally Posted by dazp1976 View Post
    Could be servo indexing or homing position have shifted and need adjusting.
    I think so. How could it be done? I can't find it on my manual

  11. #11
    Member
    Join Date
    Jan 2005
    Posts
    14146

    Re: Servo problem after battery change

    Quote Originally Posted by Fauz View Post
    Hi, i had the same battery issue on a TC32A this morning.
    I changed batteries and i followed the steps to recover the alarm and it worked.
    Unfortunately now i have the tool position shifted by 3 or 4 degrees for every position.
    I didn't try to do a tool change because i'm afraid that the arm wil collide...
    How can i solve this?

    Thank you if you can help me
    You must change the Battery with the power on, its always best to home the machine (any machine) and then change the Battery you will have to check with the manufacture to see how to correct the out of position, they will have a recovery procedure
    Mactec54

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