dimmers do not dim HELP!!!!???

Discussion in 'General Discussion' started by ADL, May 31, 2007.

  1. ADL

    ADL

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    i have a installaion with about 41 units its was wired up by another sparky and i now have a slit problem i can turn my 4 channal 2 amp dimmers on at the switch and at the dimmers them selves but i can not dim them i have a DC reading form my meter of about 31 .5 between positive and negative cbus cables and my programing if fine please advise:eek: :eek: :eek: :confused:

    PS the client is starting to saspect im an idiot but we all are in our own way please advise
     
    ADL, May 31, 2007
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  2. ADL

    Phil.H

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    Sounds a bit fishy to me ????
     
    Phil.H, May 31, 2007
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  3. ADL

    ashleigh Moderator

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    Please check the simple and obvious things:

    only 2 clock generators enabled

    one burden only enabled (more = bad)

    groups are programmed correctly into switches and dimmers

    Your problem is almost certainly something simple - perhaps a mistake made by the previous guy? There have been thousands of these things installed, 99% without incident.
     
    ashleigh, May 31, 2007
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  4. ADL

    Ross

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    Hmm,
    Make sure both sides of the dimmer, as in the Active and Neutral are on the same phase. As they are triac's you could be 120 deg out of phase.
     
    Ross, May 31, 2007
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  5. ADL

    NickD Moderator

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    Did you program with Toolkit or using Learn Mode?

    If programming via learn mode and you *exit* learn mode with a long press on a *relay* the switches will be configured as On/Off rather than dimmers, which would give the behaviour you describe.

    If this is the case you will need to re-learn the associations and exit learn with a long press on a dimmer.

    If you have network problems, often putting the network into learn mode and exiting without making any associations can sort out clock and burden issues, however be aware that if you have programmed using toolkit, and you do start making associations in learn mode, this may put your network out of sync with whats in your database.

    Let us know what you find out!

    Nick
     
    Last edited by a moderator: Jun 1, 2007
    NickD, Jun 1, 2007
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  6. ADL

    Age

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    I think Ross might have hit the nail on the head. If a dimmer does not have the same phase connected on both sides (ie is shared across 2 phases), it will not dim.

    Think of it this way... 1 Phase per Din Rail or Pro Series Dimmer.
     
    Last edited by a moderator: Jun 1, 2007
    Age, Jun 1, 2007
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  7. ADL

    ADL

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    still working on it

    thank you for the advice and to answer some question in an a attempt narrow this problem down i am using toolkit version 1.6.1 and all switchs are on there default functions no ajustments have being made in the leaner modeapplication this system is run on a threee phase system and i am going to convert it to a single phase system inorder to sort this problem out..
    Any more good ideas would be welcome and thanks for the advice so fare again;) ;)
     
    ADL, Jun 1, 2007
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  8. ADL

    ADL

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    Problem solved

    i have made it into a single phase system and has solved the problem thanks for the help:D :D
     
    ADL, Jun 2, 2007
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