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IndustryArena Forum > MetalWorking Machines > Mori Seiki Machines > Mori Seiki lathes > SERVO ALARM 401 REPEATING IN MORI SEIKI
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  1. #1
    Join Date
    Jan 2007
    Posts
    118

    SERVO ALARM 401 REPEATING IN MORI SEIKI

    FRIENDS,

    WE HAVE ONE MORI SEIKI LATHE WITH FANUC 6T CONTROLLER.

    RECENTLY WE HAD SERVO ALARM 401 AND WE HAVE REPAIRED THE DRIVE.

    AFTER REFERENCING WE SWITCHED ON THE AUTO CYCLE AND AGAIN WE GOT THE ERROR 401.

    THE DRIVE IS REPAIRED FOR ALMOST 3 TIMES.

    THE PRDY LED IS JUST COMING AND THEN EXTINGUISHED.THE MAGNETIC CONTACTOR IS NOT HOLDING.THERE ARE NO OTHER ALARM LED'S LIT.

    WHAT COULD BE THE PROBLEM AND ANY SOLUTIONS.

    THANKS,

    CHANDRU

  2. #2
    Join Date
    Dec 2003
    Posts
    24216
    Have you checked the motor commutator and brushes and any ground condition?
    Al.
    Attached Files Attached Files
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  3. #3
    Join Date
    Dec 2008
    Posts
    239

    Smile Fanuc 6T Axis drive alarm

    Procedure for installation for the Fanuc 6 T Axis card
    These procedure are applicable only with = Fanuc A20B-0007-036 SERIES OF CARDS
    Check the voltage on terminal= CN2
    Check the fuses F7,F8 & F9 IN X AXIS CARD.
    Check the R 39 (1 ohms fusible resistance)in x axis card.
    Check the Terminal voltages across =
    CH 15 = +24V
    CH 16 = +15V
    CH 17 = -15V
    CH 15 = +24V
    Check the SW1 = Must be set on 50 Hz side in Indian power conditions.
    Check the connector cable = Ribbon cable = between CN 7 of X axis to Z axis card.
    Check the jumper settings As we discussed on telephone.
    Check the voltage of Pin no 10 of CN 3 that must be between 17 to 21 V in each axis.
    If this voltage is missing than The SCR module may be faulty.
    • Check the status of LED placed on board.
    • Check the mechanical Break and its applied voltage in X axis motor.
    • Check the connection between CN1 to CAV of master PCB.
    Move the RV1 and RV2 to make DGNOS PARM = 801= 0(X AXIS) AND 800 = 0 (X AXIS)
    if still you have difficulties mail me on [email protected] or call me on +91-9430737981 (www.prabhatmishra.unitedstates.com)

  4. #4
    Join Date
    Aug 2008
    Posts
    20

    manul

    Al the man, do you have the manual for moriseiki Mill MV-40,

  5. #5
    Join Date
    Dec 2008
    Posts
    239
    Quote Originally Posted by CHANDRU View Post
    FRIENDS,

    WE HAVE ONE MORI SEIKI LATHE WITH FANUC 6T CONTROLLER.

    RECENTLY WE HAD SERVO ALARM 401 AND WE HAVE REPAIRED THE DRIVE.

    AFTER REFERENCING WE SWITCHED ON THE AUTO CYCLE AND AGAIN WE GOT THE ERROR 401.

    THE DRIVE IS REPAIRED FOR ALMOST 3 TIMES.

    THE PRDY LED IS JUST COMING AND THEN EXTINGUISHED.THE MAGNETIC CONTACTOR IS NOT HOLDING.THERE ARE NO OTHER ALARM LED'S LIT.

    WHAT COULD BE THE PROBLEM AND ANY SOLUTIONS.

    THANKS,

    CHANDRU
    you please mail me on [email protected] or call me on +91-9430737981 i will repair or guide for the repair for drive
    Regards
    prabhat Mishra

  6. #6
    Join Date
    Sep 2008
    Posts
    67
    I have a machine center MORISEIKI MV35/40.
    For the transfer from machine to pc it works
    To transfer from the PC to the machine it works
    But DNC mode the machine does not work
    when push start boton cycle start dhe green led lit ut dhe machine not work
    help me plees
    beste regard

  7. #7
    Join Date
    Aug 2015
    Posts
    36

    Re: SERVO ALARM 401 REPEATING IN MORI SEIKI

    Quote Originally Posted by CHANDRU View Post
    FRIENDS,

    WE HAVE ONE MORI SEIKI LATHE WITH FANUC 6T CONTROLLER.

    RECENTLY WE HAD SERVO ALARM 401 AND WE HAVE REPAIRED THE DRIVE.

    AFTER REFERENCING WE SWITCHED ON THE AUTO CYCLE AND AGAIN WE GOT THE ERROR 401.

    THE DRIVE IS REPAIRED FOR ALMOST 3 TIMES.

    THE PRDY LED IS JUST COMING AND THEN EXTINGUISHED.THE MAGNETIC CONTACTOR IS NOT HOLDING.THERE ARE NO OTHER ALARM LED'S LIT.

    WHAT COULD BE THE PROBLEM AND ANY SOLUTIONS.

    THANKS,

    CHANDRU
    Hello Chandru,

    Did you figure out how to solve this situation? Our Mori, a SL-25 with MF-T6 control is giving us such headache and we haven´t find the origin of the alarm.

    Any sugestion will be helpful.

    Greetings

    Ari

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