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Thread: HEIDENHAIN 151 TNC

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  1. 10-02-2008, 06:37 PM #1
    lazerracing
    lazerracing is offline Registered
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    Question HEIDENHAIN 151 TNC

    On a tnc 151
    When I power up I get a error message
    "relay. ext. dc voltage missing "
    Any help would be appreciated.
    M.L.
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  2. 10-02-2008, 10:43 PM #2
    kdhBOSS5VRAM
    kdhBOSS5VRAM is offline Registered
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    Heidenhain

    That is normal. Usually the first thing you when you turn on the machine is wait for the prompt and then press the CE button. After that the next step is to start the drives when that message comes up.

    Kevin
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  3. 10-03-2008, 12:44 AM #3
    lazerracing
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    start up

    Kevin;
    The message"relay.ext. dc voltage is missing" is after the initial startup "power interrupted "that I always clear with the CE.
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  4. 10-03-2008, 01:02 AM #4
    machintek
    machintek is offline Moderator
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    You will get this IF you powered up with the Emergency Stop button pushed in or if you have a dead 24VDC power supply.

    George
    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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