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  1. #1
    Join Date
    May 2008
    Posts
    107

    5136 FSSB problem with Fanuc 21i

    Dear all.
    My CNC center have alarm: 3156: FSSB: Number of amps is small. I have tryed to change almost every thing , but it's still. Please let me know whe and how to fix this problem, thanks you.

    Some parameter is: ( as FSSB setup documents)

    1020 x=88, Y=89, Z=90
    1023 X=1, Y=2, z=3
    1902.0=0.
    1902.1=0.
    1904.0=0.
    1905.0 X=0, Y=1, Z=0( the machine have 03 axis).
    1905.6,7 X-0, Y-0, Z-0.
    1910 to 1919= 0.
    1936= 0.
    1937- 0.

  2. #2
    Join Date
    Jul 2014
    Posts
    11

    Re: 5136 FSSB problem with Fanuc 21i

    Hi,
    did you find any solution for this problem? Am stuck with the same alarm 5136 and 750 . Please help me to fix it

  3. #3
    Join Date
    May 2008
    Posts
    107

    Re: 5136 FSSB problem with Fanuc 21i

    Quote Originally Posted by shanu4454 View Post
    Hi,
    did you find any solution for this problem? Am stuck with the same alarm 5136 and 750 . Please help me to fix it
    Hi shanu4454.
    I fixed this solution after I changed the axis card( A20B-3300-0392).
    Nam.

  4. #4

    Re: 5136 FSSB problem with Fanuc 21i

    Go to the Fanuc System FSSB page and see which axis are missing. Check the drives for U on the display.

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