Urgent help please adding keypad to electric gate

[cider]

Looks like you need a NO dry relay in a keypad that runs on 12vac? NO contact goes across "OPEN" on the controller. I assume when this is shorted the gates will open? You could test it out...

Issue would be how to get the gates to shut after a period of time? Unless this is not required? Maybe there is a keypad that counts down on a timer and will then blip a relay that could be wired across "CLOSE"? Otherwise you could manage it using a multifunction timer of some sort.
Have you tried contacting the manufacturer? They may be able to recommend something...

Thanks. Currently the gate does not auto close and needs to stay the same.

 

[SpecialK]

Thanks. Currently the gate does not auto close and needs to stay the same.

Do you just want the gate to open using a keypad? Is it OK the gate then stays open until shut on the fob etc? Basically any keypad will do that. Just needs a dry pulsed NO contact which pretty much every keypad does. Get one that can run on 12vac as you have that available in the controller.

 

[cider]

Do you just want the gate to open using a keypad? Is it OK the gate then stays open until shut on the fob etc? Basically any keypad will do that. Just needs a dry pulsed NO contact which pretty much every keypad does. Get one that can run on 12vac as you have that available in the controller.

Thanks. the controller is 24v though looking at the image or is that just to drive the gates?
Yes. Just want to open and close the gate separately as it currently does. The current wiring configuration does this on the sbs set of terminals being used. I think i just need to put another pair of wires in there and the keypad will make a temporary short across them using the n/o relay

 

[Harry Bloomfield]

Get one that can run on 12vac as you have that available in the controller.

No, it is 24v ac

 

[cider]

So i have got a RGL KP50. Ive wired a temporary power supply using an old 12c plug i found im a draw and got it programmed at home. It has multiple relay options but just using the lock 1 set to temporarily short the sbs gate control terminals which the existing set up uses. So enter code to open and again to close as required. My last question is the key pad can be 12 or 24 volt dc. Can i just power from the existing 24v transformer /psu which is in the top of the gate controller as per below ? What is a little confusing is both wires are blue with no obvious polarity markings. Im presuming i just test with a multimeter?
Or should i add a separate small psu using the available 230v ac supply to the main 24v psu

 

[Harry Bloomfield]

The spec says 12 to 24v dc max 150ma.

Were it me, I would add a bridge rectifier, to the 24v ac, followed by a smoothing capacitor, then a 7815, 15v regulator. That would all easily fit into the existing gate control enclosure. Whereas, if you go the route of an entirely separate PSU, it would involve more mains wiring, plus an additional enclosure to accommodate the PSU.

 

[sparkymarka]

And it says AC …

 

[Harry Bloomfield]

And it says AC …

It says DC in the spec., but the black PSU in the diagram, is marked 12/24v DC and 12/24v AC too.

 

[cider]

The spec says 12 to 24v dc max 150ma.

Were it me, I would add a bridge rectifier, to the 24v ac, followed by a smoothing capacitor, then a 7815, 15v regulator. That would all easily fit into the existing gate control enclosure. Whereas, if you go the route of an entirely separate PSU, it would involve more mains wiring, plus an additional enclosure to accommodate the PSU.

Thanks, could you possibly give me more detail on this ?
Separately i was presuming 150ma was the maximum load the relay contacts would take.

 

[sparkymarka]

There will be next to nothing on the relay load side …

 

[Harry Bloomfield]

Thanks, could you possibly give me more detail on this ?
Separately i was presuming 150ma was the maximum load the relay contacts would take.

It seems, reading the document @sparkymarka quoted, that the keypad can be connected and run, directly from the 24v ac supply, available from your gate's internal PSU. You don't need the gubbins I mentioned.

The 150mA in the spec., refers to the maximum current demand, of the entire keypad unit itself. 150mA, the maximum extra load of the keypad, will hardly been noticed by that gate PSU.

 

[cider]

I hadn’t spotted it was AC on the outlet side of the psu ! Ok will just wire supply to keypad from that. Thanks everyone. Will post up finished job