My m4 with fanuc 6t controller - Page 3
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  1. #41
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    Quote Originally Posted by Philabuster View Post
    Machine needs to be set to AUTO, not tape to run a program from memory.

    Here's an old PM thread about how to run the 6T:

    Fanuc 6T Basic Setup Process
    There is no auto mode . good thread though saw it last night also .

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  3. #42
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    Ok I manually shifted all ranges they all function but No indicator lights , I think there is either a hydro issue or electric issue .

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    Well carefully I opened the back panel door in safe mode , And these 2 are on. The main one that has a white background is an over load light. So far fanuc says there having a hard time helping me .
    Attached Thumbnails Attached Thumbnails eletric.jpg   electric-1.jpg  

  5. #44
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    uggh they just quoted me 2800 for a rebuilt controller .

  6. #45
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    It's a Mitsubishi drive, not Fanuc. Fanuc can't help you there. I doubt Mitsubishi can either for a machine this old, but worth a shot.

    It would be worth check all the fuses, contactor heaters and connections in the drive. If you have the books for the drive it may have tests you can run.

  7. #46
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    thanks for the info .

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    Quote Originally Posted by Garwood View Post
    It's a Mitsubishi drive, not Fanuc.
    Mazak used Fanuc's before switching everything over to Mitsubishi. The 6T control on his machine is certainly a Fanuc.

  9. #48
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    its a bishi control

  10. #49
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    jumping osh1 and osh2 right now

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    Quote Originally Posted by Philabuster View Post
    Mazak used Fanuc's before switching everything over to Mitsubishi. The 6T control on his machine is certainly a Fanuc.
    Not so. That is a Mitsubishi spindle drive hooked to a Fanuc control. I bet it has a Mitsubishi DC motor too.

    I have a pair of these M4's. The one I have with a 5T is probably going to be stripped for spares for the 20 year newer mazatrol machine and then scrapped. That 5T one has a Mitsubishi spindle drive in it, might be the exact same one. Looks the same atleast. Mine is 1979. That one is 1980.

    I have some work to do to get the newer machine making parts before I can decommission the old 5T, But if you are interested in the drive Jess and can wait a couple months possibly let me know.

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  13. #51
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    I am interested in it Garwood , the time is the only kicker , I need to see what mitsubishi quotes me on fixing it , if that's crazy I may wait sure . Thanks for the offer. Jess

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    update the light on the speed control was 0 speed not over heat , so were normal as far as that goes. We do not have a ready light is the issue. Tried unlocking the spindle , all sorts of m codes . Nothing.

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    Quote Originally Posted by reedeprintice View Post
    Ok I manually shifted all ranges they all function but No indicator lights , I think there is either a hydro issue or electric issue .
    Quote Originally Posted by reedeprintice View Post
    update the light on the speed control was 0 speed not over heat , so were normal as far as that goes. We do not have a ready light is the issue. Tried unlocking the spindle , all sorts of m codes . Nothing.
    Is the machine phased backwards? Do you have any hydraulic pressure? Is the hydraulic pump running in the correct direction?

  16. #54
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    Yes , I tried reversing the phase to make sure ,it makes a weird rattle noise when you start the control. The pump is making good pressure and going the correct direction. Thanks Jess

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    I have a few of these guys showing red , is that an issue ? Jess
    Attached Thumbnails Attached Thumbnails sol.jpg  

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    taking a very close look at the spindle controller -

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    Quote Originally Posted by reedeprintice View Post
    I have a few of these guys showing red , is that an issue ? Jess
    Jess, those are ice-cube relays. The red means they are in the closed-circuit position (the coil is powered and pulling the contacts closed).

    Here's a photo from another angle.
    The red arrow is pointing toward your red indicator / window. You can see just the edge of the red paint on the end of the plated metal spoon.
    The blue arrow shows how that metal spoon moves the plastic rack back and forth to move the little contact fingers.
    The green arrow points to the electrical connection for the coil. You can power those with a 24V source to test the relay while you probe the contacts for continuity. A 20V cordless drill battery usually works for testing 24 volt relays like those.

    omron-g2a-432a.jpg

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    This capacitor appears to be bad. Might be my problem.
    Attached Thumbnails Attached Thumbnails dc.jpg  

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    Got the capictior is fixed , the spindle seems to orientate now in manual mode , I also found a ground that was off , on the pick up off the back of the main drive. Still no MDI spindle start. This is a fun one .

  23. #60
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    We have an M5 with Fanuc 6t about the same vintage as yours, here's a start of file for one of our programs:

    (empty space right here always)
    N0010 G00 T2500 (index rear turret to "safe point" for clearance)

    ( T#0101 UL 0.0470 RAD. 55 DEG. DIAMOND FACE TURN - M507 )

    N0020 G20
    N0030 G50 X21.0 Z13.625 S1000
    N0040 G00 T0101
    N0050 M08
    N0060 G97 S0248 M38
    N0070 G04 M03 U2000
    N0080 X5.5536 Z5.3376
    N0090 G96 S0360
    N0100 G99
    N0110 X5.234 Z5.3846
    N0120 G01 Z0.0295 F0.008


    Based on your earlier posts it looks like you tried M37, M38, M39 for gear selection? I can't find anything in our manuals referencing using M40, M41, M42 commands. On our M4 if we try to input anything other than M38 the machine will flat out shut down.
    Attached Thumbnails Attached Thumbnails m5ss.jpg  


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