Dimmer not dimming

Discussion in 'C-Bus Wired Hardware' started by theduke, Feb 2, 2018.

  1. theduke

    theduke

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    Hi guys,

    I have got a weird issue on a new site I just programmed.
    Electricians wired the system and I programmed it.

    It is a basic system with no touch screen or logic units.
    The system consists of heap of switches, a relay, couple of 0-10V and 2 L5508D1A dimmers.

    Dimmer 1 works fine, dims down lights and some other lights.
    Dimmer 2 does not dim. anything from 1-100% is on and 0% is off.
    We changed the dimmer but it does not make any difference.

    Dimmer 1 and 2 got the same down lights connected. We connected 1 of the down lights directly to dimmer 2 and it still did not dim.
    Programming on the dimmers is the same except for the group addresses.

    All the basics on the C-Bus are good, clock, burden, voltage etc.

    I am starting to suspect a 240V issue.

    Anyone seen this problem before?

    Any help appreciated.

    Cheers,

    Roeland
     
    theduke, Feb 2, 2018
    #1
  2. theduke

    NickD Moderator

    Joined:
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    Is the power supply connection for the dimmer on the same phase as its loads?

    NIck
     
    NickD, Feb 2, 2018
    #2
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