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  1. #1
    Registered
    Join Date
    Sep 2016
    Posts
    1

    Post Gildemeister CTX400 Serie 2 - Spindle cannot turn!

    Hi everyone, I discovered this forum just recently, and will really appreciate it if anyone has a similar experience with this case I am having and is willing to give some tips.
    Our company owns a CTX400 Serie 2 CNC lathe machine by DMG, and its main spindle does not turn anymore!

    Here is what I did:
    1. I initialized the CNC (Closed the safety door, turned the drive on, clamped the chuck, initialized the feed to reference point, specified tool number)
    2. I set the main spindle speed to its minimum (50 rpm)
    3. I commanded the spindle to turn either CW or CCW (both does not turn)
    4. The whole drive stopped, and error message appeared, saying "No phase current in S1 axis motor lines" Then, the message told me to check "the DC link voltage, motor feed lines, and fused in the power module."
    I merely checked the three power wires going to the main spindle with the clamp ammeter, and it showed that each wire carried a constant and same amount of current upon activation.

    Sometimes the spindle would slightly twitch after command, but that's it.

    Does anyone have any idea about how to fix this? Thank you!

  2. #2
    Registered
    Join Date
    Jul 2015
    Posts
    12

    Re: Gildemeister CTX400 Serie 2 - Spindle cannot turn!

    Quote Originally Posted by Richard5635 View Post
    Hi everyone, I discovered this forum just recently, and will really appreciate it if anyone has a similar experience with this case I am having and is willing to give some tips.
    Our company owns a CTX400 Serie 2 CNC lathe machine by DMG, and its main spindle does not turn anymore!

    Here is what I did:
    1. I initialized the CNC (Closed the safety door, turned the drive on, clamped the chuck, initialized the feed to reference point, specified tool number)
    2. I set the main spindle speed to its minimum (50 rpm)
    3. I commanded the spindle to turn either CW or CCW (both does not turn)
    4. The whole drive stopped, and error message appeared, saying "No phase current in S1 axis motor lines" Then, the message told me to check "the DC link voltage, motor feed lines, and fused in the power module."
    I merely checked the three power wires going to the main spindle with the clamp ammeter, and it showed that each wire carried a constant and same amount of current upon activation.

    Sometimes the spindle would slightly twitch after command, but that's it.

    Does anyone have any idea about how to fix this? Thank you!

    Hi,

    probably you have problem with you spindle amplifier.
    How do you clamp the chuck? I have Gildemeister CTX 520 linear and I can't to clamp chuck. If I clamp it, than I can't unclamp. How to adjust the analog sensor and pressure switch?

    Best regards

  3. #3
    Registered
    Join Date
    Dec 2010
    Posts
    1
    Hello,
    The same situation is here (gildemeister nef320)
    Have you got any solution for this problem?

    Thanks, Pctvsat

  4. #4

    Re: Gildemeister CTX400 Serie 2 - Spindle cannot turn!

    Dear both,

    a typical indication of a defective spindle drive.
    Feel free to contact me on freddie@cnc-consult.com for a offer on a new/exchange unit.


    BR.
    Freddie O. Gaardbye

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