Need Help with Solid State Relay wiring

[cdjnight]

I have a boost controller that has 12volt two wire leads that go to a 12volt air solenoid. The controller can only handle a 3amp load. I need to control a device that has a larger load, so I am adding a Hella solid state relay... http://www.summitracing.com/parts/hl...FYQ-aQod4oUGNw
and I have no clue how to wire it in.
Here's the Hella diagram. http://hellahd.com/index.php/default...001-931773987/

30 goes to +battery lead
87 goes to +of higher current load
85 ????
86 ????

I know its not the same as a mechanical relay so 85 and 86 is what I need help with. Keeping in mind my control wires normally open and close a 12v solenoid.

I've gathered that 85 probably just gets attached to a chassis ground.
And 86 needs to be a switched -negative. How do I achieve that with my current outputs?

[motorhead]

85 is a permanent ground, 30 is the + side of the battery sized big enough for you load amperage, 86 is your control circuit(note it needs to be a negative trigger. 87 goes to the plus side of your load or whatever you are controlling.

[cdjnight]

Originally Posted by motorhead

85 is a permanent ground, 30 is the + side of the battery sized big enough for you load amperage, 86 is your control circuit(note it needs to be a negative trigger. 87 goes to the plus side of your load or whatever you are controlling.

Thank you now I just need to find out if my controller is switching both + and - if it is I'm golden. Just attach - to 86. If its not I will definitely need some help.

[motorhead]

Originally Posted by cdjnight

Thank you now I just need to find out if my controller is switching both + and - if it is I'm golden. Just attach - to 86. If its not I will definitely need some help.

Can you send me a link to the controller? I could look at how it gets wired.

[cdjnight]

Originally Posted by motorhead

Can you send me a link to the controller? I could look at how it gets wired.

http://www.innovatemotorsports.com/s...1%20Manual.pdf

[motorhead]

Your controller is switching the postive. Can I ask what load you are going to control with the boost controller that is more than 3 amps?
To do it with the solidstate relay you have, you would need another relay that accepts a 12+ trigger and then wire the ground through the contacts to send a -12 trigger to the relay you have. If it was me I would find a relay the will handle the current you need that accepts a +12 trigger. It would really simplify things.

[HadA68]

Originally Posted by cdjnight

http://www.innovatemotorsports.com/s...1%20Manual.pdf

Why not use the relay that the manual suggests? It has a 12Vdc control and capable of switching 40amps. Might be overkill for your application but it will work.

http://www.waytekwire.com/item/75411...36-Mini-Relay/

[motorhead]

Originally Posted by HadA68

Why not use the relay that the manual suggests? It has a 12Vdc control and capable of switching 40amps. Might be overkill for your application but it will work.

http://www.waytekwire.com/item/75411...36-Mini-Relay/

I agree, but it seems as though he's looking for solid state for some reason. That's why I ask what he was controlling and what the amperage is.

[HadA68]

Originally Posted by motorhead

I agree, but it seems as though he's looking for solid state for some reason. That's why I ask what he was controlling and what the amperage is.

Then I would use this relay:

http://www.waytekwire.com/item/75533...atching-Relay/

Assuming 15amps is sufficient

[motorhead]

Originally Posted by HadA68

Then I would use this relay:

http://www.waytekwire.com/item/75533...atching-Relay/

Assuming 15amps is sufficient

That's a latching relaying. That would be the wrong relay for his application.

[Rainbow1616]

Just get a solid state relay with a higher current. Amazon has a million of them cheap. Depending on the load though you may have to add a heat sink to it.

[cdjnight]

Originally Posted by motorhead

Your controller is switching the postive. Can I ask what load you are going to control with the boost controller that is more than 3 amps?
To do it with the solidstate relay you have, you would need another relay that accepts a 12+ trigger and then wire the ground through the contacts to send a -12 trigger to the relay you have. If it was me I would find a relay the will handle the current you need that accepts a +12 trigger. It would really simplify things.

I'm controlling a 12 volt pump, IE...changing its duty cycle, changes its output presure

Originally Posted by HadA68

Why not use the relay that the manual suggests? It has a 12Vdc control and capable of switching 40amps. Might be overkill for your application but it will work.

http://www.waytekwire.com/item/75411...36-Mini-Relay/

The manual suggested relay is only to power the gauge not the output of Solenoid control.

Originally Posted by motorhead

I agree, but it seems as though he's looking for solid state for some reason. That's why I ask what he was controlling and what the amperage is.

Yes I'm looking for solid state control because it will be cycling millions of times. Not something you would do with a mechanical relay. Amperage of pump I am controlling is upwards of 20A

[motorhead]

Originally Posted by cdjnight

I'm controlling a 12 volt pump, IE...changing its duty cycle, changes its output presure



The manual suggested relay is only to power the gauge not the output of Solenoid control.



Yes I'm looking for solid state control because it will be cycling millions of times. Not something you would do with a mechanical relay. Amperage of pump I am controlling is upwards of 20A

So you are going to use the relay for PWM to rapidly cycle the pump to try to maintain a certain pressure at a certain boost? Why not use a Boost-A-Pump instead? Just curious. I would call Hella. The spec for that relay doesn't give a rating for an inductive load which is what a fuel pump is.

[cdjnight]

Originally Posted by motorhead

So you are going to use the relay for PWM to rapidly cycle the pump to try to maintain a certain pressure at a certain boost? Why not use a Boost-A-Pump instead? Just curious. I would call Hella. The spec for that relay doesn't give a rating for an inductive load which is what a fuel pump is.

A friend sent me this relay.