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IndustryArena Forum > Machine Controllers Software and Solutions > Fanuc > Spindle cannot Rotate (Fanuc 11T-Dainichi)
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  1. #1
    Join Date
    Sep 2006
    Posts
    126

    Spindle cannot Rotate (Fanuc 11T-Dainichi)

    Hi Guys,
    On my last post (Fanuc 11T Start up error), problem fixed.
    but now i have some problem "again".
    Spindle cannot rotate when i give command M3/M4 S... on MDI mode.
    On the operator panel, spindle drive can operate in auto/manual by toggle switch.
    If i give command on MDI and Spindle drive in manual mode, spindle can rotate by manual speed override.
    now the machine can working only in manual spindle, and i always adjust the spindel RPM with manual override.
    please somebody help me to solve this problem.
    (sorry for my english)

    Nastek

  2. #2
    Join Date
    Aug 2007
    Posts
    793
    Kind of I faced with the same problem when forgot enter all data tables into PMC parameters

  3. #3
    Check the PMC and PMC parameters. Ask the machine tool builder if they have the originals. Then compare with yours. Do notchange anything without knowing what it does.
    The Fanuc Support Center Team
    www.fanuc-support.com

  4. #4
    Join Date
    Sep 2006
    Posts
    126
    Thanks Buddy, i'll try to check one by one.

  5. #5
    If you have electronic copies of both, there are text comparison programs you can download off the net. That's what i use to compare NC parameters.
    The Fanuc Support Center Team
    www.fanuc-support.com

  6. #6
    Join Date
    Nov 2022
    Posts
    2
    I faced with the same problem. Please inform me if you solve it????.

  7. #7
    Join Date
    Nov 2007
    Posts
    352

    Re: Spindle cannot Rotate (Fanuc 11T-Dainichi)

    Has the machine a High and low and netural switch---or light ?
    M41-M42 required ?

  8. #8
    Join Date
    Jan 2013
    Posts
    474
    Quote Originally Posted by nastek View Post
    Hi Guys,
    On my last post (Fanuc 11T Start up error), problem fixed.
    but now i have some problem "again".
    Spindle cannot rotate when i give command M3/M4 S... on MDI mode.
    On the operator panel, spindle drive can operate in auto/manual by toggle switch.
    If i give command on MDI and Spindle drive in manual mode, spindle can rotate by manual speed override.
    now the machine can working only in manual spindle, and i always adjust the spindel RPM with manual override.
    please somebody help me to solve this problem.
    (sorry for my english)

    Nastek
    Spindle should have a PMC output relay, the M3/4 NC command is processed by the PMC and conditions are met then the relay switches the relay to spindle enable condition. Clearly, in manual mode fewer conditions need to be met for you to be able to start the spindle via the push button. A ladder diagram would be very useful in this case to find the automatic start preconditions.

  9. #9
    Join Date
    Mar 2016
    Posts
    325

    Re: Spindle cannot Rotate (Fanuc 11T-Dainichi)

    Just thought- did U check door switch?

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