Fanuc O-M 1991 mod. - Parameter loading - Page 2
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  1. #21
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    Hi, Hmmmm…. I’m still struggling with this topic. Trying to load backup NC-parameter and DGN parameter.
    After entering 900 option parameters according to the manufacturers data sheet I’m getting alarm 911 - after power on.
    If I leave 905 = 0000 0000 I can load parameters but not sure how to verify that DGN parameter 10300 and up are loaded.
    After loading everything, the machine starts up in Not Ready mode. No alarms. Not able to select EDIT (stuck in MDI).

    Last evening I did a hardware verification.
    I find that data sheet says I/O card module: A16B-1211-0946.
    The card mounted in the machine is labeled: A16B-1211-0945. Could this be an issue for the original parameters?

    thanks for any feedback

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    Quote Originally Posted by ROY_WERNER View Post
    .....Last evening I did a hardware verification.
    I find that data sheet says I/O card module: A16B-1211-0946.
    The card mounted in the machine is labeled: A16B-1211-0945. Could this be an issue for the original parameters?
    The -945 I/O board has a greater number of I/O points than the -946 so I doubt that has any effect on your trouble.

    Alarm 911 indicates a parity alarm with the main RAM. This makes me doubt that the real trouble is with the parameter setting for the PMC board (905.3). When you leave 905 at all zeros the control is configured to not have a PMC therefore no operation panel switches will work.

    What value are you setting in parameter 901? I would try setting 11010000 to it and then load the remaining parameters from your list and see if the alarm 911 is resolved. If it is not, the next thing I would try is a replacement MEM board. As a guess your control will have one of these boards in the MEM slot..

    A16B–1212–0210
    A16B–2201–0103

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    Quote Originally Posted by Vancbiker View Post
    The -945 I/O board has a greater number of I/O points than the -946 so I doubt that has any effect on your trouble.

    Alarm 911 indicates a parity alarm with the main RAM. This makes me doubt that the real trouble is with the parameter setting for the PMC board (905.3). When you leave 905 at all zeros the control is configured to not have a PMC therefore no operation panel switches will work.

    What value are you setting in parameter 901? I would try setting 11010000 to it and then load the remaining parameters from your list and see if the alarm 911 is resolved. If it is not, the next thing I would try is a replacement MEM board. As a guess your control will have one of these boards in the MEM slot..

    A16B–1212–0210
    A16B–2201–0103
    Hi, I've a A16B-1212-0216 #06B card.
    My original opt param 901 = 0100 1000

    I'll try to add the "MUTIPLE REPETITVE CANNED CYCLE" and reduse to "TAPE MEMMORY ADDITION 20M"

    A bit confused regarding parameter loading.... Some manual says EDIT mode for loading DGN parameters. I'm stuck in MDI mode....
    But when in MDI mode - > [DGN] -> [EOB]+[INPUT] -> LSK blink -> Input blink until file completed.

    Does my DGN parameter list looks normal?
    %
    N10322 P 10110011
    N10323 P 11011001
    N10324 P 00000011
    N10400 P 00010000
    N10402 P 00000100
    N10447 P 00000100
    N10448 P 00000100
    N10449 P 00000100
    N10451 P 00000101
    N10452 P 00000001
    N10453 P 00001000
    N10454 P 00000100
    N10455 P 00000111
    N10456 P 00010000
    N10457 P 00001001
    N10458 P 00000011
    N10459 P 00000110
    N10460 P 00000010
    N10490 P 00000001
    N10491 P 01000100
    N10492 P 00000100
    N10500 P 00000010
    N10501 P 00000001
    N10504 P 00000100
    N10506 P 00000001
    %

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    Quote Originally Posted by ROY_WERNER View Post
    Hi, I've a A16B-1212-0216 #06B card.
    My original opt param 901 = 0100 1000......
    OK, that is a 32 bit memory board and I was guessing that you had a 16 bit board.

    Did a bit more checking of my configuration information. Found some conflicting information about parameter 901. Set 901 as 01010000.

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    A new mem card is quite expensive....

    I’m pretty sure that the first 911 alarm was caused by backup battery failure (after 5 weeks of holidays). Backup battery more than 6 years old :| (yeah I know…. )
    As far as I can figure out this 911 is a typical alarm for the issue.

    Is there any way to confirm that the mem card i broke without sending it to the repair shop?

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    Quote Originally Posted by ROY_WERNER View Post
    .....

    Does my DGN parameter list looks normal?
    %
    N10322 P 10110011
    N10323 P 11011001
    N10324 P 00000011
    N10400 P 00010000
    N10402 P 00000100
    N10447 P 00000100
    N10448 P 00000100
    N10449 P 00000100
    N10451 P 00000101
    N10452 P 00000001
    N10453 P 00001000
    N10454 P 00000100
    N10455 P 00000111
    N10456 P 00010000
    N10457 P 00001001
    N10458 P 00000011
    N10459 P 00000110
    N10460 P 00000010
    N10490 P 00000001
    N10491 P 01000100
    N10492 P 00000100
    N10500 P 00000010
    N10501 P 00000001
    N10504 P 00000100
    N10506 P 00000001
    %
    Since the function of DGN parameters is determined by the machine builder, not Fanuc, it is impossible for me to say without Enshu's documentation.

    Quote Originally Posted by ROY_WERNER View Post
    A new mem card is quite expensive....

    I’m pretty sure that the first 911 alarm was caused by backup battery failure (after 5 weeks of holidays). Backup battery more than 6 years old :| (yeah I know…. )
    As far as I can figure out this 911 is a typical alarm for the issue.

    Is there any way to confirm that the mem card i broke without sending it to the repair shop?
    Did it fail with the 911 alarm when setting parameter 901 to 01010000? If it did, then it is likely that one of the memory chips is defective since that setting defines the minimum basic memory amount. Basic level chips are soldered on and others are installed in sockets when additional memory is ordered.

    In your first post, you say you cleared memory. Did you do that with the RESET and DELETE buttons pressed while turning on the power? After replacing the batteries did you check voltage on connector CPA7 on the MEM board?

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    Quote Originally Posted by Vancbiker View Post
    ..... In your first post, you say you cleared memory. Did you do that with the RESET and DELETE buttons pressed while turning on the power? After replacing the batteries did you check voltage on connector CPA7 on the MEM board?
    Yes, I did the [RESET] + [DEL] on power up. After replacing (and cleaning the battery housing) I did a voltage check on the wire on the back of the battery housing. I’ll check voltage at CPA7 on mem board.

    To clarify; I can load parameters, edit P-code varalbles etc. IF I leave prm 905 = 0000 0000 - have to select [RUN WITHOUT PMC] on power up…...
    (I'm also told to try clear "sub-board" - [DEL]+S on power up while PWE=0 )
    Last edited by ROY_WERNER; 02-24-2020 at 07:20 AM.

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    Update: Voltage measured om mem card - OK
    I’m stuck in a loop here.
    - Inserts 900 parameters accordingly to Enshu data sheet
    - Power Off (waiting ca 10 sec) -> Power On
    - Alarm 911 (picture 1)1st-alarm-911.jpg
    - Power Off
    - [RESET] + [DELETE] + Power On
    - Alarm 911 (picture 2)2nd-alarm-911.jpg
    - Power Off
    - [DELETE] + Power On

    Then “Normal” alarms for empty machine state...
    (PS! If I leave parameter 905 empty - No 911 Alarm on power On)

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    Have you tried alternate settings for parameter 905 to define fewer or greater steps?

    I find it odd that your machine has the PMC-M board while VTM's very similar machine does not have that board. The PMC-M offers ability to run a larger ladder program, many more I/O points than the PMC-L, and a faster scan time. Hard to understand the need on a simple 3 axis drill/tap machine.

    None of my documentation shows any RAM on the PMC-M board. The only reference to memory type on the -0901 board shows it being a ROM board. It probably has some RAM on it but nothing shows up in my information. The manual specifically notes that the 911 alarm is MEM board RAM related.

    Since "normal" recovery measures are not working, it is time to look at other things. Fanuc notes that a failing power supply can be a cause of the 911 alarm. With old machines like this it is not uncommon for power supplies to become noisy or fail due to bad electrolytic capacitors. You need an oscilloscope to check the noise on the power supply or swap it with a known good unit.

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    Quote Originally Posted by Vancbiker View Post
    Have you tried alternate settings for parameter 905 to define fewer or greater steps?

    I find it odd that your machine has the PMC-M board while VTM's very similar machine does not have that board. The PMC-M offers ability to run a larger ladder program, many more I/O points than the PMC-L, and a faster scan time. Hard to understand the need on a simple 3 axis drill/tap machine.

    None of my documentation shows any RAM on the PMC-M board. The only reference to memory type on the -0901 board shows it being a ROM board. It probably has some RAM on it but nothing shows up in my information. The manual specifically notes that the 911 alarm is MEM board RAM related.

    Since "normal" recovery measures are not working, it is time to look at other things. Fanuc notes that a failing power supply can be a cause of the 911 alarm. With old machines like this it is not uncommon for power supplies to become noisy or fail due to bad electrolytic capacitors. You need an oscilloscope to check the noise on the power supply or swap it with a known good unit.

    Hi Vancbiker
    Yes, I’ve tried alternate settings for parameter 905. All steps. If setting 905 to PMC-L, I’m asked to [Load PMC I/O], [RUN WITH PMC] or [RUN WITHOUT PMC]. If I select [RUN WITH PMC] it’s just a fast blink on CRT, an it says something about “ladder” (don’t remember exact wording here).
    My machine has the PMC-M card installed and 32-bit mem card is A16B-1212-0216 #06B

    I think VTM's machine has the same base. My machine has options as an automatic door Open/Close (M78/M79), and also the 4th axis. In addition my machine has some GRAPH/AUX enabled. Something called “TOMATO-MINI” under AUX. Guess this is not a Fanuc “thing”(?)


    I’ll definitely verify the power supply next.
    fanuc.jpg

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    Mine has the Tomato Mini. The PMC must come in for the 4th axis and the pneumatic doors like you said. Those are the main differences from what I can tell. Have you tried calling Enshu. I've found them pretty helpful In the past.

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    Quote Originally Posted by VTM View Post
    Mine has the Tomato Mini. The PMC must come in for the 4th axis and the pneumatic doors like you said. Those are the main differences from what I can tell. Have you tried calling Enshu. I've found them pretty helpful In the past.
    Yes, Enshu has given me a GREAT service. They sent me the data sheet with opt parameter, nc- + dgn parameters. Instructions om macro recovery and so on. GREAT service from Enshu!

    Regarding the 911 alarm, Enshu told me to contact Fanuc Nordic. I’m in an (early stage) dialog with them …… I hope they answer soon

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    Good Luck, I wish I could be of more help to you.

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    Quote Originally Posted by VTM View Post
    Good Luck, I wish I could be of more help to you.
    I'll post updates (and new questions )

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    Voltage and power supply on my machine verified - OK

    Confirmation on the 3 first step on routine for re-entering /loading parameter on Fanuc OM needed.

    1. Clear mem
    2. Insert 900 (Option parameter from the manufacture)
    3. Power OFF (wait 10 sec)
    4. Power ON ( her I’m stuck with 911 alarm.....)
    Last edited by ROY_WERNER; 02-28-2020 at 11:41 AM.


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