cbus both outputs at once?????

Hi

I have this cbus system which is in a 3 story house level 1 and two ar wired up with a cbus cable between both levels to let two way switching.When client switchs the ground floor gym light on upstairs bathroom fan comes on. when they turn on lounge down stairs upstairs bedroom comes on????
The plaste boards screw up the cables I fix it best as I can the cbus 12 way module also flicks instead of been on soild.........................

 

Hi Mr Security,

Sounds like the floors possibly may have been configured independently using learn mode or two different people have been configuring the C-Bus from different PCs using Toolkit eg client's PC and installer's laptop before the inter-floor link was in place. Another possibility is that an unravel was done from Toolkit moving around a few units whilst the inter-floor cable link was down/faulty due to the plaster screw damage that you mentioned. These situations would allow for the same group addresses to be applied to multiple loads/switches.

At any rate, the simplest fix requires running Toolkit on the network and reallocating the correct loads to the correct switch buttons where there is a discrepancy. Ensure you do this from the PC that has the latest Project File/Tag database on it.

Are you saying one of the LEDs on the 12 port module is flashing? If it is the top LED, the 'Unit LED', there is no problem, it is just in local override mode. Just press and hold any button on the relay for a few seconds and it should stop flashing (be solid on).

If it is the bottom LED, the 'C-bus LED' flashing then this indicates a low voltage on the C-Bus and you may have insufficient power supplies for the number of units on the network or one of the power supplies may have failed. This low voltage could also explain why units have moved between C-Bus addresses, for instance if an unravel was completed at a time some units were not contactable on the network due to a low voltage at their end of the cable.

Once you open Toolkit and then the Project, you can click on the Network (probably 254) and it will give you 'Current Consumption' and 'Current Supply' figures. Also, once the network scan is done, scroll the network window way over to the right and the voltage at each unit is displayed. Report these figures back here.

If you want to note where you are located, a local C-Bus specialist may be able to assist you more onsite if it seems too hard for you to do yourself.

Regards,

Brad