Did I get this right, I wonder?

[Oddvar R]

Hi. I was hoping someone could look at this board and check if I got it right? Compared to the layout? It's the placement of the 22m resistors, that says"22M from NC to Com on both contacts." Sorry, but relays get the better of me, or worse.

[sluckey]

Wrong.

[pompeiisneaks]

wrong, the first two posts are for the relay 5v contacts to enable the switch. The two you need are to go from pins 2 to 3 on either side. Part of what makes this confusing as well is that you've got a hoffman relay (I used them on my build too) but you're looking at the dumble style relays that send all the pins over to the one side.

~Phil

[Oddvar R]

Thank you, it's a bit confusing this, I have at least three different layouts, but then again, relays are not my usual cup of tea...

[pompeiisneaks]

Yeah it's a mental mapping exercise.

The first two pins top and bottom on the left on yours compare to the top and bottom leftmost pins in the layout to the LEFT of the diode. That's the relay power on/off for the coil

Then the pinout on the dumble is labelled by me as "Top and Bottom" pins 1,2,3 (T1,T2,T3,B1,B2,B3) relate like so:

T1,B1,T2,B2,T3,B3

which they've written as

(Com=common, NC=Normally Connected, NO=Normally Open)
Com1,Com2,NC1,NC2,NO1,NO2

on the layout.

Does that help?

See Picture:

Relay 2.jpg

~Phil

[Oddvar R]

Thanks a lot, that's very clear. I am also wondering where the two voltage leads from the 12v transformer is coming inn. Some say only one goes in, others indicate two on each side of the diode, others has one coming from the main board?

[norburybrook]

Thanks a lot, that's very clear. I am also wondering where the two voltage leads from the 12v transformer is coming inn. Some says only one goes in, others indicate two on each side of the diode, others has one coming from the main board?

the rectified voltage comes from the rectifier board and then to the regulator input then to the output where it's now 12v and into the striped end of the diode on the board, the other end goes to the switch on the rear, which goes to the footswitch as well.



M

[pompeiisneaks]

Yup exactly as Marcus says, you send in 12v to the + side and the rest goes off to the switches to 'complete' the circuit for the relay coil.

Edit: to clarify that's the red + and the black - on the left side of my picture, the 12V + and -. (minus goes off to the switches which either provide it reference to ground to 'activate' the relay, or open to block reference to ground keeping the relay at it's unpowered setting.

~Phil

[Oddvar R]

Thanks guys, much appreciated. I am using, for some reason, two layouts at once, they differ a bit in the lead connections, so I am trying to get it as right as possible the first time.

[amplifiednation]

The relay works the same as a regular DPDT toggle switch. One pair of contacts is connected when off, and when engaged it switches to the other set of contacts.