fanuc OT PMC ladder not exist
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  1. #1
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    Default fanuc OT PMC ladder not exist

    lathe Puma 8s Fanuc OTC
    when battery dead i load parameters and pmc parameters but when turn on machine i have 3 options:
    Load PMC:
    1 Load from IO
    3 RUN
    4 Run without pmc

    when i press 3 RUN shows no ladder exist any idea how resolve this problem HELP

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    Was this machine running recently?

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    Quote Originally Posted by GENERALDISARRAY View Post
    Was this machine running recently?
    no its my firts starting

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    If you have a Fanuc 0TC control then the PMC ladder is stored on EPROM chips on the MEM board. Two sockets on the upper right corner of the board probably labeled OE1 and OE2. Having a battery go dead should not cause the machine to lose the PMC ladder. Do you have EPROMS at that location?

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    yes there is 2 chip eprom EO1 and EO2 but looks like not read ths emproms
    img-1927-1-.jpg
    img-1928-1-.jpg
    img-1929-1-.jpg

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    OK. Thanks for the pictures. The cassette just to the left of the MEM board is curious. Can you post a picture of the full label on it? Also, what board number and label is in the PMC slot on the motherboard? What are the contents of parameter 905?

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    The option parameters (P900 and up) have to be loaded before the control knows that a ladder exists (and which type).

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    yes i know first parameters 900 by hand input and others by rs232
    i try change 905 parameter also bit by bit and nothing,but is 3 or 4 position bits which no show window PMC load select when turn on ,like if change par 905 to 00000010 is no window pmc load select,but when turn machine On not load PMC and no ladder still
    below parameters from similar machine puma 8s 1995 fanuc otc i load this parameters
    N0900 P 00111000
    N0901 P 11100001
    N0902 P 00000100
    N0903 P 10001000
    N0904 P 00000000
    N0905 P 00000001
    N0906 P 00100000
    N0907 P 01010000
    N0908 P 00000000
    N0909 P 00100001
    N0910 P 00000000
    N0911 P 00000000
    N0912 P 00000000
    N0913 P 00000000
    N0914 P 00000000
    N0915 P 00000000
    N0916 P 00000000
    N0917 P 00000010
    N0918 P 00000000
    N0919 P 00000000
    N0920 P 00000000
    N0921 P 00000000
    N0922 P 00000000
    N0923 P 00000000
    N0924 P 00000000
    N0925 P 00000000
    N0926 P 00000000
    i dont know i have wrong parameters or not read eproms HMM

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    Two things.

    I don't think you have as much memory installed as these parameters suggest. All your memory slots would have to be full and they're not.

    Try changing your 901 to

    N0901 P 11100100

    or this

    N0901 P 11100010

    From what I'm gathering, only bits 0 and/or bit 5 are usable for lathe. The rest you tried are for mills.

    N0905 P 00000001 (PMC Type L 3000 steps)

    N0905 P 00100000 (PMC Type M 5000 steps)

    You might want to wait for someone smarter then me to verify before trying.

    Hope I haven't broken any rules. :-)

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    Quote Originally Posted by 13engines View Post
    Two things.

    I don't think you have as much memory installed as these parameters suggest. All your memory slots would have to be full and they're not.

    Try changing your 901 to

    N0901 P 11100100

    or this

    N0901 P 11100010

    From what I'm gathering, only bits 0 and/or bit 5 are usable for lathe. The rest you tried are for mills.

    N0905 P 00000001 (PMC Type L 3000 steps)

    N0905 P 00100000 (PMC Type M 5000 steps)

    You might want to wait for someone smarter then me to verify before trying.

    Hope I haven't broken any rules. :-)
    It sure looks like only 2 of the 4 extended memory sockets are populated yet the parameter is set to 320 meters. I am not familiar with the 2201 board which is the top one and what the OP has. On the 1212 board I know all 4 spots need to be populated for 320 meters.

    I think if it were me I would try backing the memory down.

    I'm also curious what the thing next to the memory card is that Vancbiker mentioned.
    Attached Thumbnails Attached Thumbnails 20201209_174453.jpg  

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    Cool pic. Saved it if you don't mind. They're very much the same as they are different.

    I have the board like the OP does and yes all slots need filling for max memory. It does look as if some of the slots are filled but am not sure what that would give him memory wise. Also not so sure about the stock nature of the Toshiba chips in there. Meaning is any cross reference a proper one? That is out of my league.

    Isn't the yellow box a custom made macro from Fanuc? My plug there is empty.

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    Quote Originally Posted by 13engines View Post
    Cool pic. Saved it if you don't mind. They're very much the same as they are different.

    I have the board like the OP does and yes all slots need filling for max memory. It does look as if some of the slots are filled but am not sure what that would give him memory wise. Also not so sure about the stock nature of the Toshiba chips in there. Meaning is any cross reference a proper one? That is out of my league.

    Isn't the yellow box a custom made macro from Fanuc? My plug there is empty.
    Checked 8 machines with OTs and none of them have that yellow box. A live tooled c axis machine with an 11T does though.

    If I had to guess I would say the max memory the OP can run with that setup is 120 meters. Also he could set it to 20 or 40 meters and see if that helps as that shouldn't require any physical extensions.

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    PHOTOS YELLOW BOX AND OTHERS img-8319.jpg
    img-8322.jpgimg-8320.jpgimg-8318.jpg
    OTHER PARAMETERS 900 FROM ANOTHER LATHE PUMA 6S FANUC OTC before send from puma 8s
    N0900 P 00101000
    N0901 P 11110000
    N0902 P 00000100
    N0903 P 10000000
    N0904 P 00000010
    N0905 P 00000001
    N0906 P 00100001
    N0907 P 01011000
    N0908 P 00000000
    N0909 P 00101011
    N0910 P 00000000
    N0911 P 00000000
    N0912 P 00000000
    N0913 P 00000000
    N0914 P 00000000
    N0915 P 00100000
    N0916 P 00000000
    N0917 P 00000010
    N0918 P 00000000
    N0919 P 00000000
    N0920 P 00000000
    N0921 P 00000000
    N0922 P 00000000
    N0923 P 00000100
    N0924 P 00000000

    i iput from 8s and 6s still the same problem not read pmc no ladder

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    Quote Originally Posted by 13engines View Post
    .......

    From what I'm gathering, only bits 0 and/or bit 5 are usable for lathe. The rest you tried are for mills.

    N0905 P 00000001 (PMC Type L 3000 steps)

    N0905 P 00100000 (PMC Type M 5000 steps)

    You might want to wait for someone smarter then me to verify before trying.

    Hope I haven't broken any rules. :-)
    In Fanuc speak, PMC-L and PMC-M do not denote Lathe and Mill PMC types. Fanuc L and M are different PMC types that offer different capability and processing speed. PMC-M on a 0 series needs a board plugged into the PMC slot on the motherboard. It appear that there is no board there so I have to think that his machine is using PMC-L.
    Last edited by Vancbiker; 01-24-2021 at 10:08 PM. Reason: add content

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    I was hoping that the Order Made Macro cassette (yellow module next to the MEM board) would have some other info beyond the Fanuc part number on it. Order made Macro is an option that a builder can spec to have Fanuc written custom routine macros on the control. They differ from User macros in that they are not stored in program memory nor can they be edited by a user. Don't recall seeing a lathe so equipped. Have seen mills with Order Made Macro where bolt hole patterns, pocketing, circle milling, etc were implemented.

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    So it sounds like you do not have the original 900 series parameters for this machine and are loading 900 series parameters from "similar" machines? If this is the case you may be in for some odd results. Have you tried contacting the machine builder for the correct parameter list for your specific machine.

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    Quote Originally Posted by 13engines View Post
    ......Also not so sure about the stock nature of the Toshiba chips in there. Meaning is any cross reference a proper one? That is out of my league.....
    Yes, mine too. My "official" notes from Fanuc spec Hitachi memory chips for the 0 and 10 series.

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    i find in cabinet 2 chips eprom i change memory board i change finding chips and now read ladder,its better i input parameters and diagnostic parameter but machine dont wont start up when i press green button turn on its nothing i check in diagnostic this looks its works this buttom becouse show me changinf bits when press.
    when i turn machine on jog mode stock in jog and handle,i cant change for another mode like mdi
    when machine is turned on i change on mdi and turn off ,power on then show mdi mode but cant change for another
    img-1961.jpgimg-1963.jpg

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    its was emergency bottom bad we change for new and machine works but not 100% works everything ,now i have problem with turret
    i load parameters and diagnostic from puma 8s with 12 tools i have 10 tools turret maybe that why not wont works
    please check D443 how to change this
    i find something like this check photoimg-1966.jpg

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    i have on parameter diagnostic D443 all 00000000


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