Hi
I am working with some sensory equipment, mainly programming and RS232 wiring (12v).
I intend to use a SSR that has a 12V input to close a 5v circuit.
Sadly I seem to have hit a snagg , I am not the best person with electronics and I have not used relays much.
The problem is I have an OPTO22 DC60S5 SSR, and it has 4 pins on each side,+1 , 2 and 4 ,3+.
Now I assumed if I delivered 12V to 4 and 3+ , it would switch +1 and 2 on.
Thing is +1 and 2 seems tp be closed before I even apply 12V...???
I was told a resistor was not needed as the relay has 1000ohm resistor inside it,,,do I have to calculate the amps??
Why is 1 and 2 connected?
Anyone have any ideas as to what I am doing wrong??
I am working with some sensory equipment, mainly programming and RS232 wiring (12v).
I intend to use a SSR that has a 12V input to close a 5v circuit.
Sadly I seem to have hit a snagg , I am not the best person with electronics and I have not used relays much.
The problem is I have an OPTO22 DC60S5 SSR, and it has 4 pins on each side,+1 , 2 and 4 ,3+.
Now I assumed if I delivered 12V to 4 and 3+ , it would switch +1 and 2 on.
Thing is +1 and 2 seems tp be closed before I even apply 12V...???
I was told a resistor was not needed as the relay has 1000ohm resistor inside it,,,do I have to calculate the amps??
Why is 1 and 2 connected?
Anyone have any ideas as to what I am doing wrong??