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Asynchronous speed

  • eusty
  • June 3, 2014 at 8:41 PM
  • Thread is Resolved
  • eusty
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    • June 3, 2014 at 8:41 PM
    • #1

    I've a strange issue with an Asynchronous axis rotating at half speed.

    The issue is intermittent, mostly it runs at exactly half speed, other times at the correct speed when you monitor $VEL_AXIS[?]

    I set $OV_ASYNC in my main loop program, so it's not being overwritten anywhere.

    Code
    IF $OV_ASYNC<>?? THEN
    
    
    $OV_ASYNC=??
    
    
    ENDIF

    The movement command is in the SPS.

    I'm confused as I can't think of anything which would modify the speed, I've mentioned it to Kuka UK and they are stumped too....open to ideas ???

  • panic mode
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    • June 3, 2014 at 9:18 PM
    • #2

    is the axis permanently asynchronous or you switch back and forth?

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

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    SkyeFire
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    • June 3, 2014 at 11:30 PM
    • #3

    What about $VEL_EXTAX and $ACC_EXTAX? Are you checking or explicitly controlling them? I've had trouble with that in the past.

  • eusty
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    • June 4, 2014 at 6:24 AM
    • #4

    I'll get them to take a look at it (the system is in the US).

    The axis is permanently asynchronous.

  • eusty
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    • July 10, 2014 at 6:33 PM
    • #5

    Only now got over to the US and indeed it was $VEL_EXTAX which was causing the issue.

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    SkyeFire
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    • July 11, 2014 at 9:31 AM
    • #6

    Thanks for the update.

  • Shubham Jain
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    • October 17, 2019 at 7:58 PM
    • #7
    Quote from eusty

    I've a strange issue with an Asynchronous axis rotating at half speed.

    The issue is intermittent, mostly it runs at exactly half speed, other times at the correct speed when you monitor $VEL_AXIS[?]

    I set $OV_ASYNC in my main loop program, so it's not being overwritten anywhere.

    Code
    IF $OV_ASYNC<>?? THEN
    
    
    $OV_ASYNC=??
    
    
    ENDIF

    The movement command is in the SPS.

    I'm confused as I can't think of anything which would modify the speed, I've mentioned it to Kuka UK and they are stumped too....open to idel

    for which purpose we use $ov_async and when ? :question_mark::question_mark:

    SHUBHAM JAIN

  • panic mode
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    • October 17, 2019 at 8:00 PM
    • #8

    check manual...

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

  • Shubham Jain
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    • October 17, 2019 at 8:44 PM
    • #9
    Quote from panic mode

    check manual...

    i am not getting from manual, please tell me :blumen:

    SHUBHAM JAIN

  • panic mode
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    • October 17, 2019 at 8:54 PM
    • #10

    i cannot help if you don't share what exactly is preventing you to get the info from the manual

    Images

    • ov_async.png
      • 62.48 kB
      • 818 × 555
      • 41

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

  • Shubham Jain
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    • October 17, 2019 at 9:04 PM
    • #11
    Quote from panic mode

    i cannot help if you don't share what exactly is preventing you to get the info from the manual

    DEF turn_0( )

    ;FOLD INI;%{PE}

    ;FOLD BASISTECH INI

    GLOBAL INTERRUPT DECL 3 WHEN $STOPMESS==TRUE DO IR_STOPM ( )

    INTERRUPT ON 3

    BAS (#INITMOV,0 )

    ;ENDFOLD (BASISTECH INI)

    ;FOLD USER INI

    ;Make your modifications here

    ;ENDFOLD (USER INI)

    ;ENDFOLD (INI)

    $async_axis = 'b0001'

    $ov_async = 30 what is the use of this variable??:question_mark::question_mark:

    asyptp {e1 0}

    END

    SHUBHAM JAIN

  • panic mode
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    • October 17, 2019 at 9:07 PM
    • #12

    It is exactly what it tells in the screen-capture of manual i shared in previous post.

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

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