1
\$\begingroup\$

I'm making this circuit:

I've bought an Omron G5LA-1 non-latching SPDT relay. It looks like this (from the datasheet):

I'm struggling to figure out how I wire this up though. I believe I need to ignore a pin, but I'm not sure which. I also don't know what gets wired to which pin.

I have the circuit wired up with the power, tumbler switch, and capacitor so far.

The keyboard just looks something like this, where 2 of the 26 contacts would be connected:

Any guidance with figuring out what goes to which pin is much appreciated!

\$\endgroup\$
4
\$\begingroup\$

Ignore pin 4, that's the normally closed contact. It's that simple. Note that the diagram is looking at the bottom of the part, not from the top through it.

1 and 3 are the switch that closes when the coil is energized, it doesn't matter which is which, and they go to the keyboard.

2 and 5 are the coil.. again it doesn't matter which is which.

Test it out before hooking it up to the keyboard- you should hear the relay clacking as it operates with the "tumbler switch".

When you do hook it up, keep the connections neat, shorts kill parts.

\$\endgroup\$
  • \$\begingroup\$ Thanks for your swift reply Spehro! It works perfectly, thanks a lot! :) \$\endgroup\$ – Danny Beckett Mar 19 '14 at 6:01

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.