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Remove T2 Capabilities

  • AutoMattic21
  • March 2, 2021 at 1:59 PM
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  • AutoMattic21
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    • March 2, 2021 at 1:59 PM
    • #1

    Hello,

    We have recently purchased a set of Fanuc robots from an Auction in the United States to use in our Canadian Facility.

    These robots are equipped with Teach 2 capabilities, which are illegal here in Canada, so I am looking to disable them.

    My first idea was to remove the wiring to the key switch so that even if they turned the key to T2, it wouldn't activate it, but I am now concerned about leaving the robot in a state of not knowing what operating mode it is in.

    As I am typing this, I'm thinking instead of removing the wiring, to re-route it to turn on T1, so if the key is in the T1 or T2 position, T1 is active.

    Any comments, suggestions, concerns or better ideas for me?

    Thanks,

  • Go to Best Answer
  • AutoMattic21
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    • March 2, 2021 at 2:01 PM
    • #2

    Sorry, meant to mention this in my original post. But they are R-30iA/ ArcMate 100ic Robots.

  • Nation
    Typical Robot Error
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    • March 2, 2021 at 2:07 PM
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    • #3

    I did this on some RJ3iB robots, and I wired a jumper for the T2 contact so that when the operator placed the robot into T2 mode, it would stay in T1.

    For your case though, the robot defaults to T1 even if you disconnect the teach switch entirely. You would be fine if you removed the wiring.

    In my case, it was an issue, because on that era of controller, if you removed the wiring the robot would default to T2. Fanuc fixed this on the R30iA version of controller.

    Check out the Fanuc position converter I wrote here! Now open source!

    Check out my example Fanuc Ethernet/IP Explicit Messaging program here!

  • AutoMattic21
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    • March 2, 2021 at 2:10 PM
    • #4

    Thank you!

  • Doctor_C
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    • March 2, 2021 at 2:47 PM
    • #5

    I think for R-30iA, you need to remove the wire going to the Tyco connector pin B2 (the other end from the auto/T1 switch)

    Follow it back to the T1/T2 switch contacts and pull it off there. Then try it and let us know, please.

    If I'm right, the robot will show T1 mode when you put the switch in T2, disabling T2

  • neighbour1
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    • March 2, 2021 at 3:40 PM
    • #6

    You have two choicesas it should be properly done:

    1. Buy two position switch from Fanuc - there are T1 and AUTO only, replace yours and this solves the problem.

    2. Set the system variable $SCR.$T2_LOCK_ENB = 1 (originally it's = 0) - and this also solves the problem - robot, when switched to T2, shows the message T2 disabled and that's all :smiling_face: No changing in wires needed :smiling_face:

    This system variable needs to be set in Controlled start.

  • neighbour1
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    • March 2, 2021 at 4:22 PM
    • #7

    ad. 1. And this is how it looks...

    Images

    • T1_AUTO_autoscaled.jpg
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  • fastfingers
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    • March 4, 2021 at 3:26 PM
    • #8
    Quote from neighbour1

    You have two choicesas it should be properly done:

    1. Buy two position switch from Fanuc - there are T1 and AUTO only, replace yours and this solves the problem.

    2. Set the system variable $SCR.$T2_LOCK_ENB = 1 (originally it's = 0) - and this also solves the problem - robot, when switched to T2, shows the message T2 disabled and that's all :smiling_face: No changing in wires needed :smiling_face:

    This system variable needs to be set in Controlled start.

    I have used option 2 in the past and it works just fine. I left the three position switch alone.

  • ClaudiuA
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    • March 4, 2021 at 3:56 PM
    • #9
    Quote from fastfingers

    I have used option 2 in the past and it works just fine. I left the three position switch alone.

    I third this. I always deactivate T2 after I finish commissioning a robot cell. Too many bright operators hitting my pretty yellow robots.

  • AutoMattic21
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    • March 4, 2021 at 4:57 PM
    • #10

    Thanks everyone, I think we are going to do a combo setting the system variable and taking the wiring out. Double it up to keep maintenance from messing with anything.

  • Sergei Troizky
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    • March 10, 2021 at 8:44 PM
    • #11
    Quote from AutoMattic21

    ...Teach 2 capabilities, which are illegal here in Canada, ...

    Where is this written?

    Could you refer a particular document?

    Do it well right away. It will become bad by itself.

  • AutoMattic21
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    • March 10, 2021 at 8:59 PM
    • #12
    Quote from Sergei Troizky

    Where is this written?

    Could you refer a particular document

    Not off hand, but I can assure you that Industrial Robots in Canada must be limited to 250 mm/s in teach mode. Been in the field for 12 years and that's common knowledge.

  • MoEL
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    • August 24, 2021 at 11:18 AM
    • #13
    Quote from neighbour1

    You have two choicesas it should be properly done:

    1. Buy two position switch from Fanuc - there are T1 and AUTO only, replace yours and this solves the problem.

    2. Set the system variable $SCR.$T2_LOCK_ENB = 1 (originally it's = 0) - and this also solves the problem - robot, when switched to T2, shows the message T2 disabled and that's all :smiling_face: No changing in wires needed :smiling_face:

    This system variable needs to be set in Controlled start.

    Hello,

    I get that message when trying to modify that variable

    Variable/ field write-protected

    Is there an other option to modify it?

    Thank you


    Edit:

    Found a solution:

    I created a program and run it

    Code
    $SCR.$T2_LOCK_ENB = 1

    and T2 is Disabled now

    Thanks again

    Edited once, last by MoEL (August 24, 2021 at 11:28 AM).

  • DS186
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    • August 24, 2021 at 11:22 AM
    • #14

    Make sure you are in controlled start. Otherwise it is not possible to change the variable.

  • MoEL
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    • August 24, 2021 at 11:30 AM
    • #15
    Quote from DS186

    Make sure you are in controlled start. Otherwise it is not possible to change the variable.

    Thank you,

    I disabled it with a program, but it is fine to know that

    Thanks

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