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  1. #1
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    Oct 2013
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    20

    Alarm on Fanuc 20I-T

    I get Alarm 1022 M.S.T.B sgn Are not completed. What does it mean?

  2. #2
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    The lathe is a Takisawa Ex-110 cnc from year 2001 with Fanu21i-T.And we get the Alarm 1022 M.S.T.B sgn Are not completed. What does it mean?

  3. #3
    Gold Member
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    Aug 2011
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    2517
    the alarm happens when M, S or T command is not completed. after command is read machine does the function and sends back a signal to the control that the command was successful. if it doesnt complete usually it means electronics fault, but it's also possibly a switch fault somewhere. it depends on if it's M, S or T.
    try M, S and T commands separately trying to narrow down exactly which one is at fault.

  4. #4
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    Okey we have tried it separately with M,S and T command. And they work but just one block, it wont change to the next block. Thats when the alarm comes up. Does the B in the alarm stand for block change?

  5. #5
    Gold Member
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    Aug 2011
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    B is for B axis angle like B120.0 (if you have a B axis). If you dont have a B axis then I don't know.

    what happens when you run this program in auto....

    %
    O1234
    G0 T0101
    G97 S100
    M3
    G4 U5.0
    M5
    B0
    M30
    %

    Can you run the program with single block on (press start on each line) and does it run to the end?

  6. #6
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    Oct 2013
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    First when i start the program it goes G0 T0101 and Changes the tool. But when it suppose to go to G97 S100 it gets the alarm and wont run. But when i then start the program at G97 the program runs to B0 wich it says its an illegal adress. i guess we dont have a B axis. But why does it not continue from G0 T0101 to G97 S100? And we have run the program in single block.

  7. #7
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    Dec 2012
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    325
    Hi Swealf,

    Is this your first CNC machine?
    Do you know the right nc-code for your Takisawa?
    Are there prox switches (chuck) or pressure switch signals?
    Do you need a M41/M42 for high or low gear?
    Did you ZERO-RETURN the axis?

    %
    O1122( TEST-CODE )
    T0101( ROUGH CNMG )
    G50 S1000 M41 (SPEED LIMIT + LOW GEAR)
    G97 S750 M03
    G4 X5. (U5.)
    M05
    %

    Regards,
    Heavy_Metal.

  8. #8
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    Oct 2013
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    Its our third CNC but the first with this model of Fanuc. We have had manual guide I in the other lathes. We have solved the problem. Our Turret was not in the right postition but we did the procedure to get it in the right position and now its working just fine. Thanks for the help evryone

    Regards: Swealf

  9. #9
    Junior Member
    Join Date
    Mar 2009
    Posts
    10
    Hallow Swealf

    I have the same problem you had with the Turret on my EX 110 Takisawa.
    How did you manage to get the Turret in the right position? Please Help.

  10. #10
    Junior Member
    Join Date
    Mar 2009
    Posts
    10
    Hallow Swealf

    I have the same problem you had with the Turret on my EX 110 Takisawa.
    How did you manage to get the Turret in the right position? Please Help.

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