Shutter relay - multiple motors

Hi

Assuming that I want to open/close windows only together with one another, is it possible to run more than one motorized window winder from the same c-bus shutter relay provided, of course, that the total load remains under 2A?

Thanks

M

 

Connecting multiple motors together off a single relay is not a good idea. Relay contact life would be shortened significantly under these circumstances, although how much the life will be reduced varies with the exact type and construction of the motors used.

 

most motor makers discourage this also.

 

There are some non C-Bus controllers that do allow multiple motors to be connected, but they have seperate terminals for each montor - there is no parallel wiring involved. These can then be connected to a C-Bus relay for integration into the C-Bus system. I have one running two roller shutters in unison.

You should be able to use two controllers and have use the same group names, that way the appear to be one and whenever one goes up so will the other.

Mick

 

Multiple motors

Hi ,
I have 3 230v vertical blinds running off 1 shutter relay all in one room aprox 300mm apart ,generally they work fine but occasionally one won't open , this is generally when wife only touches Saturn quickly but if you hold it longer never a problem .
Regards conor

 

Make sure that the FailSafe time in all shutter relays sharing the same group is identical, otherwise you might get some strange behaviour as one unit thinks the blinds are closed when another thinks they are open.

 

It will work, just don't expect the Shutter Relay unit to last a long time in this configuration. You'll also probably struggle to get a successful warranty claim out of either Clipsal or the motor manufacturer if anything fails.