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    Member Dhairyasheel's Avatar
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    Default CNC lathe alarm

    Our LMW CNC lathe is throwing a turret alarm A2.7 and A2.3. Request help as we do not have the electrical manual. It is a 2007 machone with Fanuc oi mate-TC control. The error is appearing after every half an hour. The turret is hydraulically operated. Model is LMW LL20T L3. Greatly appreciate if someone could share its electrical manual.

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    Default Re: CNC lathe alarm

    Maybe there's a hydraulic issue.?

    Sent from my D5803 using Tapatalk



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    Default Re: CNC lathe alarm

    That A2.7 can be searched in the ladder. Your clamp switch isn't always making. Could be it needs adjusting.



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    Default Re: CNC lathe alarm

    Does this happen in the same part of the program each time or at various places?

    I have a Fanuc 18i Mori lathe that would hang on indexing the turret if you left the last cut and headed for a safe turret change zone using G53 without a G0 or G1 move off the part first. Especially after some automated cycle. Strangest thing ever. Took me awhile to figure it out because it didn't make sense. But that's what it was doing. Wasn't hydraulics or anything.

    Does your turret index under manual indexing without fail, even after many many tries? Mine would. That's why I figured it was something else. Which as I said... it was.



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    Member Dhairyasheel's Avatar
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    Yes. It sometimes could occur even 10 minutes apart kr 15 minutes apart. The consistency of the alarm does tend to increase with use as the day proceeds. A lack of electrical manual (machine was bought used) is making it difficult. Thanks.

    Quote Originally Posted by the_gentlegiant View Post
    Does this happen in the same part of the program each time or at various places?

    I have a Fanuc 18i Mori lathe that would hang on indexing the turret if you left the last cut and headed for a safe turret change zone using G53 without a G0 or G1 move off the part first. Especially after some automated cycle. Strangest thing ever. Took me awhile to figure it out because it didn't make sense. But that's what it was doing. Wasn't hydraulics or anything.

    Does your turret index under manual indexing without fail, even after many many tries? Mine would. That's why I figured it was something else. Which as I said... it was.




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