FR-SF alarm 23 excessive error - Page 2
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  1. #21
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    thanks for all that Dave
    helpin' people out here is truly one of the more satisfying things in my little world

  2. #22
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    Hi Dave,
    Regarding PDF file that you have for testing PLG, would you please send it to me??? I have the same problem as yours.
    My e-mail is: [email protected]
    Thank you.

  3. #23
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    sent by email

    Well it was kicked back due to your spam settings.

  4. #24
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    capt dave can you send it to me too? [email protected]

    thanks

  5. #25
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    capt dave can you send it to me too? [email protected]
    sent to email.

  6. #26
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    CaptDave,
    I have seen the rear bearing on the motor begin to go bad and allow the plg gear to move into and away from the plg especially during different loads and cause this intermittant deal you have going. I have seen them get to the point that the gear has gotten into and knocked the crap out of the sensor. With only .006" gap it don't take much. Just something else you may consider.

    "Machine tools are like women. Some like you to talk dirty to them, some you have to sweet talk. Some like to be treated rough and some won't allow it. BUT THEY ALL LIKE MONEY SPENT ON THEM!" So get out your wallet!

  7. #27
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    Quote Originally Posted by Captdave View Post
    sent by email

    Well it was kicked back due to your spam settings.
    Would you please send it to following e-mail address: [email protected]
    Many thanks.
    Karanmah

  8. #28
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    I'll check the bearing when I get back in town since the cover is still off.

    I guess my son is slacking today, I called to check on how it was running and he's out fishing or something!

  9. #29
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    Got over 40 hrs on the machine and no hint of spindle hiccup, I hate to call it solved just yet but so far looks good.

  10. #30
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    Doah!!!...

  11. #31
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    Check end play as Leeland sugguested but seems to be in good shape. Buttoned it all back up this morning and going to keep our fingers crossed for a while. On to the next big adventure!

  12. #32
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    Been running just fine for the past 4 months but the problem came back today. Went through the adjustment procedure again and found the voltages had creep just outside of the very small tolerances listed. Its a real PITA to adjust, I swear you just breath wrong and it overshoots a mile.

    Hope this doesn't become a once a quarter event

  13. #33
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    Had to adjust again this morning, any thoughts as to why the voltage may be changing slightly?

    Here are the values.

    +1.0605 +/- 30m VAC
    0.00 +/- 10m VDC

  14. #34
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    it wants to go to PLG heaven Dave
    let it go to the light

  15. #35
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    As I've mentioned before, electronics isn't my cup of tea but that was my thought as well. I'll give Mits a call here in a bit and see what their thoughts are and if they have one on hand.

    Keven, would you happen to have one from your old QT-8?

    Update....

    Didn't expect anyone at Mits to answer this early in the morning but they did. The tech said that since these pots are so sensitive and being on the spindle motor where there is a lot of vibration, that once adjusted I should put a small dab of silicone over the head to keep them from moving. Looking at the picture in the adjustment procedures you can actually see the dabs of silicone.

    Sound reasonable, I'll give that a shot and see what happens.

  16. #36
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    all true

    no spares
    sorry

  17. #37
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    Well it was worth a try but started the machine back up after lunch and its out of limits again. Ordered a PLG and Pre-amp board from Mits, hope this fixes it for good

  18. #38
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    chances are it will

  19. #39
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    Received the PLG and Pre-amp board from Mits around noon, installed and adjusted it dead nuts on. Added a dab of silicone on the pots and buttoned it up hopefully this time for good

    We'll see how she does over the next couple of weeks, I really can't afford to have it down again.

    One a side note...I did find some fine carbon residue about the size of a cotton ball (assuming from the motor brushes) when I had the motor cover off changing out the PLG sensor. Blew out the motor best I could with out removing it. Is this normal?

  20. #40
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    these are AC servos so i would assume its just dirty rotten dirt from out of your lungs that built up over the years in the motor. not surprising after 20 years of service


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