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Thread: spindle drive unit alarm EX0451

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  1. 06-15-2017, 08:12 AM #1
    metoaly
    metoaly is offline Registered
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    Apr 2009
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    spindle drive unit alarm EX0451

    I have a problem with the EX0451 alarm spindle unit (M7435) at MORI SEIKI NL1500SY. The alarm occurs at the start of the operation and the message on the unit is about F3 4C also noticed that the contactor does not work at the beginning to test the unit with the motor. I want help solve this problem
    Thanks,
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  2. 10-09-2017, 01:52 PM #2
    Angelopolus
    Angelopolus is offline Junior Member
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    Quote Originally Posted by metoaly View Post
    I have a problem with the EX0451 alarm spindle unit (M7435) at MORI SEIKI NL1500SY. The alarm occurs at the start of the operation and the message on the unit is about F3 4C also noticed that the contactor does not work at the beginning to test the unit with the motor. I want help solve this problem
    Thanks,

    Do you solve this issue?
    I have the same problem.
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  3. 10-12-2021, 01:25 PM #3
    Antonio713
    Antonio713 is offline Member
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    Re: spindle drive unit alarm EX0451

    I just had this problem this morning, found a lose board that slides in the amplifier, this cleared that alarm EX0451 and spindle drive alarm was 60.
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