30-10-2014, 11:02 PM
(30-10-2014, 11:44 AM)thm Wrote: Appreciate all the help, going to do this ate the weekend, will let you know how I get on.
Brian,
there is a table in the installation manual that lists the various contacts.
Some of them are marked as NC (that means Normally Closed or that the respective contacts should make contact) and are generally safety devices like photocells. There should be a piece of wire (jumper) between the two contacts of each NC pair to short-circuit them, unless of course you have actually installed the respective safety device (which you should leave for the end of the installation).
The ones marked NO are for movement command devices (pushbuttons etc). For example, to command the gate to move (open or close) you should briefly (in the order of 1 sec) make contact between #23 and #24.
The NC and NO are "dry contacts" meaning you should not provide your own voltage to them or you may damage the board. The board itself monitors those contacts and can tell when there is circuit continuity or not (when contact is made or broken) and uses their state as a signal for how to behave. This is especially important in case of intercoms and access-control devices that may provide their own voltage (say 12VDC) as output. In these cases, one has to use an intermediate relay that gets activated by the voltage provided by the intercom and, in turn, closes the dry contact of the board.
#23 and #24 are the contacts you are looking for connecting your intercom but, as described above, the connection should be voltage-free.
Keep in mind that commanding a gate without having visual contact with it may be hazardous: for example, you might accidentally command it to close when already open. The typical solution is to activate automatic closing (which makes proper installation of safety photocells all the more important) and program the pushbutton command as an OPEN-only command. The later, unfortunately, doesn't look like it is supported by your control board, so you should set DIP-switch 2 to ON (activate residential function) and either install the pushbutton/intercom next to a window overlooking the gate or install a camera watching the gate area.
Remotes may be per-programmed or not. In either case, the manual describes the procedure to memorize them to the board, so it shouldn't bother you too much.
