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Type: Posts; User: TFGC

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  1. Replies
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    Re: Fanuc 6m-b 401, 420, 422 & 426 Y Axis Alams

    ProbleFixed: Turned out the main PCB did in fact have an issue specific to the Y axis encoder feedback (possibly a hybrid chip, but do not know for sure). After an issue with my first used PCB...
  2. Replies
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    614

    Re: Fanuc 6m-b 401, 420, 422 & 426 Y Axis Alams

    Thanks for the advice. I actually did that today with no change to the alarm. This weekend, I am going to check all the parameters dealing with encoder feedback and see if any magically changed...
  3. Replies
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    614

    Re: Fanuc 6m-b 401, 420, 422 & 426 Y Axis Alams

    Thank you for the advice. To date, here is what I've done to try and find the root issue:

    1. Swapped the Y axis servo motor with another exact match from a partial donor machine I have: 426...
  4. Replies
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    614

    Fanuc 6m-b 401, 420, 422 & 426 Y Axis Alams

    Hello-

    After several months of inactivity on my 1981 Mycenter 2, I attempted to power up and exercise the machine. Machine powered up, but Fanuc 6m-b control went into an immediate 426 Y axis...
  5. Replies
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    4,674

    FC200 Switch

    I know this is well over a year ago, but did you use the FC200 board's rotating switch (position 2) to allow for parameter setting? Once set, power down, rotate switch back to Zero (0) and reboot.
  6. Replies
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    400

    What material do you need the dies machined from?...

    What material do you need the dies machined from? Would brass or aluminum work? I also have a desire for a small benchtop bender for my CNC machining company; something like Pines CNC 15.
  7. Thread: Using 4th axis

    by TFGC
    Replies
    6
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    218

    Hi- Take a look at your Fanuc 6m-b Maintenance...

    Hi-

    Take a look at your Fanuc 6m-b Maintenance Manual. You will find a few parameters that relate directly to the 4th axis settings; specifically:

    Parameter 11, bit 0 ADLM

    -A setting of 0...
  8. Replies
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    Fanuc 6M ladder punch

    f-bu:

    Is it possible to punch the ladder out on a 6M-B control?

    Thanks,
    TFGC
  9. Replies
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    603

    If you still need some manuals post your email...

    If you still need some manuals post your email and I'll share what I have.
  10. Sorry all for the delay. It ended up being a...

    Sorry all for the delay. It ended up being a small wire (1 of 5) that came loose from it's solder point on a pcb located in the brushless tachogenerator. I thought it was a feedback error and that...
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    Fanuc 6M-B DC Servo Motor Bog-Down

    Hello-

    Here goes...while making a 1/4" deep roughing slot pass in some 6061 aluminum using a 1" diameter tool in my '81 Kitamura Mycenter 2 (with Fanuc 6M-B control and a Fanuc 3 DC spindle motor)...
  12. For any one interested in the fix; here's what I...

    For any one interested in the fix; here's what I found. The brushless tachogenerator (on my Fanuc 3 spindle motor) had one of 5 wires break loose at it's solder point on the circuit board housed at...
  13. Replies
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    464

    This is just my experience so here goes... I...

    This is just my experience so here goes...

    I own a 1981 Kitamura Mycenter 2 w/ a Fanuc 6m-b control. I experienced the same problem with the tool carousel continually spinning when commanded. ...
  14. Replies
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    797

    Hi- I have a Fanuc 6M-B Maintenance Manual that...

    Hi-
    I have a Fanuc 6M-B Maintenance Manual that contains information about that panel. It does not show electrical schematics for it though, but it might help you out. I will photocopy the related...
  15. Fanuc 6M-B DC Spindle Board A20B-0008-0378 Manual/Drawings

    Hello-

    I have lost the +15v signal on my 1982 Fanuc 6M-B DC spindle board (model A20B-0008-0378/02-08D).

    I am seeking to purchase manuals or drawings to help me trouble shoot. I've already...
  16. Spindle shutdown on an '81 Kitamura Mycenter 2 w/ Fanuc 6m-b

    Here's the scoop:

    I began drip feeding a program (I've run 30 times prior) to my 1981 Kitamura Mycenter 2 w/Fanuc 6M-B from a plugged in IBM Thinkpad. As the program homed and began to make it's...
  17. 1981 Kitamura Mycenter 2 w/Fanuc 6M-B Spindle Problem

    Here's the scoop:

    I began drip feeding a program (I've run 30 times prior) to my 1981 Kitamura Mycenter 2 w/Fanuc 6M-B from a plugged in IBM Thinkpad. As the program homed and began to make it's...
  18. Thanks all for the help. Seems that at the back...

    Thanks all for the help. Seems that at the back side of the pendant a connection had worked loose through vibration. Once it was seated correctly it fixed my rpm spindle meter, tool carousel and...
  19. Replies
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    Make sure your key is not on Edit. My 6M-B will...

    Make sure your key is not on Edit. My 6M-B will not run if my key is set to Edit. Just a thought.
  20. The button does retract out after it is pushed...

    The button does retract out after it is pushed though as opposed to staying in. Are there any sensors on the ATC carousel that could be "gunked" up so as not to be "seen" for positioning?

    I will...
  21. Sorry al- I had my electrician spray the...

    Sorry al-

    I had my electrician spray the contacts on the XYZ selector switch and it seemed to do the job.

    Now though, my ATC carousel spins non-stop when the manual ATC rotate button is pressed...
  22. Thank you Al so much for your time. I will...

    Thank you Al so much for your time. I will report back after I have gone through the process.
  23. Thank you both Al and Allyd- So far I have: 1. ...

    Thank you both Al and Allyd-
    So far I have:
    1. Checked the selector switch on the pendant...it looks good but I will clean the contacts to be sure.
    2. Looked through my DGNOS screens and found...
  24. Al- When homing each axis via the homing...

    Al-
    When homing each axis via the homing selector position YES I do have to hold the + button down until each is zeroed out.

    Correct also that I am not receiving any alarms.

    Should I start by...
  25. 1981 Kitamura M-2 Fanuc 6M-B YZ Simultaneous Movement

    Hello-

    I was warming the spindle up on my 1981 Mycenter 2 Fanuc 6M-B in MDI in the 2nd Command screen using only S and M commands. When I went to home the Z axis both the Z and Y axis moved...
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