Help - I'm in the dark

Discussion in 'C-Bus Wired Hardware' started by znelbok, Feb 2, 2005.

  1. znelbok

    znelbok

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    I'm in the dark

    Well

    Got up this morning and nothing happenend. Some of the key units had their LED lit up (when they shouldn't have).

    Took a look in the board and both my dimmer and relay were dead (no link or c-bus light). Yes a small installation with only two modules for lights

    Everything else appears to be OK (bridge and CNI), except the Aux input module may be stuffed, all the "load" leds are on and only one is configured.

    Had awindy night and power was lost around 3 this morning.


    Can anyone suggest if there is a way to tickle them into life at all, any tricks out there.

    Thanks

    Stuck in the dark

    update

    Pulled the dimmer and it appears to be OK. All I can suggest at the moment is that the phase voltage is low and not allowing the c-bus module to start (same applies to the other gear not working).

    They all start when on a different phase.

    How sensitive are the din rail module to voltage fluctuations?
     
    Last edited by a moderator: Feb 2, 2005
    znelbok, Feb 2, 2005
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  2. znelbok

    ashleigh Moderator

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    Location:
    Adelaide, South Australia
    Are you in Melbourne or Sydney?

    There was severe weather last night across the whole of Eastern Australia. There are reports of substantial power blackouts and substation damage, especially in Victoria.

    Its possible you have suffered either a brown out (low phase voltage, typically about 100V if one of the feeder phases goes), or a voltage spike / surge when some of the Victorian substations exploded :)

    I cannot comment on the performance of C-Bus devices in the presence of such abnormal events - apart from that brown out conditions will operate outside the specified voltage range so its not surprising if the behaviour is a bit unusual.

    Might be an idea to grab a multi-meter and measure your phase voltage...

    Keep us posted on anything you find out - it will be interesting to see how you installation has held up to such unusual events.
     
    ashleigh, Feb 2, 2005
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  3. znelbok

    znelbok

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    Thanks ashleigh

    I'm in Wollongong, and yes severe weather was the casue.

    Everything came up fine a couple of hours ago.

    What caused the alarm bells to ring was that there were devices (such as a large TV, one computer and numerous small devices) running fine on the same phase as the c-bus units (and the other non working items). Hence my first assumption was that power was OK. Something tiggered a though that it may have been low voltage so I tried a different phase and they came up allright (had the dimmer on two phases, but it was good enough for proving the point)

    I did not have my meter with me to check so I was in the dark (pun intended) as to what the phase voltage was.

    So basically two phases were fine, one had low volts (presumably), low enough tha the c-bus units (and two of three computers, the amp) would not operate.
     
    znelbok, Feb 2, 2005
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