This is what I mentioned in my first post. If both buttons are pressed I’m sure there will be a short. I have it fused, but still. This is another reason why I was trying to use more than one relay to accomplish this.

 

Okay, below is a schematic using two SPDT relays, each controlled by a PB switch:
If both buttons are pressed it just applies the battery voltage to both motor terminals, and the motor does nothing since there is no voltage difference across the motor terminals, so no concerns about a short.

 

Ok. That’s exactly what I’m looking to do. However that schematic might as well be in Swahili. Can you explain which wire goes to which terminal on relays?

 

To be clear, if you turn off the ignition or ACC, unless you go out of your way to make the bar retract, it won’t.

It is not simply removing power that will make the bar retract, it is removing power from the relay when there is otherwise power to the system that will make it retract.

So, the solution most sensible to me, even understanding what effect you want but ignoring your attempt to work around a non-problem, you would wire one latching button to a relay. The, when energized by pushing the switch to the latched ON position would raise the bar but when pushed again to OFF would lower the bar.

Removing power by shutting off the vehicle would not lower the bar unless you went out of your way to provide non-switched power to the actuator—but if shutting off the vehicle removes power from the actuator, it can’t do anything. If that is the current arrangement, it is easy to fix by routing power to the actuator through a relay that is not powered when the vehicle is off.

Even with this requirement, it is much simpler and more reasonable to do than working out how to deal with two independent switches that have mutually exclusive operation. In fact, even it you did go to that trouble, you would just be making a weird version of the preferred solution where you would be able to leave one switch (retract) constantly on and just use the other to operate the bar.

 

So, first of all, the switch panel that I want to connect it to is battery powered and not switched powered. Second, that would mean that when the truck was running, the button would need to stay pressed in order to keep the actuator extended. I was trying to avoid that

 

Can you explain which wire goes to which terminal on relays?

The diagram is similar to that for most relays.
If you post the pin connections of the relay you will use, I can show you.

In the example below, the common goes to the actuator, the N/C goes to ground, and the N/O goes to the battery volage.
The coil goes to the PB and ground, of course.

 

The diagram is similar to that for most relays.
If you post the pin connections of the relay you will use, I can show you.

In the example below, the common goes to the actuator, the N/C goes to ground, and the N/O goes to the battery volage.
The coil goes to the PB and ground, of course.

View attachment 331457

Where does the second wire of actuator go?

 

So, first of all, the switch panel that I want to connect it to is battery powered and not switched powered.

That makes no sense.
What is "switched powered"

My assumption was that the switch is connected to the battery power.

that would mean that when the truck was running, the button would need to stay pressed in order to keep the actuator extended. I was trying to avoid that

No, it wouldn't.
Depressing the switch simply removes power from the actuator, so it will stay in whatever position it was set to.
You keep having this mistaken idea that removing the power to the actuator will somehow change its position.

 

Where does the second wire of actuator go?

To the common of the other relay controlled by the second switch.

 

That makes no sense.
What is "switched powered"

My assumption was that the switch is connected to the battery power.
No, it wouldn't.
Depressing the switch simply removes power from the actuator, so it will stay in whatever position it was set to.
You keep having this mistaken idea that removing the power to the actuator will somehow change its position.

Sorry, this was in response to Ya’Akov’s post.
Switched power means it’s only powered when car is on. Maybe you know it as ignition power?
Control panel is connected straight to battery as I need to operate with vehicle off

 

Depressing the switch simply removes power from the actuator, so it will stay in whatever position it was set to.
You keep having this mistaken idea that removing the power to the actuator will somehow change its position.

I think you are confusing different posts. That was in response to using a DPDT relay. Using 2 SPDT relays I understand. With the DPDT relay, depressing the switch WOULD change actuator position.

 

So, first of all, the switch panel that I want to connect it to is battery powered and not switched powered. Second, that would mean that when the truck was running, the button would need to stay pressed in order to keep the actuator extended. I was trying to avoid that

OK, it’s your truck, your project, and definitely your prerogative to do what3ver you choose.. I am not sure we’ve actually communicated but best of luck with the project. I hope it turns out to be exactly what you want.

 

OK, it’s your truck, your project, and definitely your prerogative to do what3ver you choose.. I am not sure we’ve actually communicated but best of luck with the project. I hope it turns out to be exactly what you want.

I appreciate your response and suggestion. I’m just trying to figure out a way I can do this so it operates exactly as it did on the DPDT switch as that worked ideally.

 

That is in response to using a DPDT relay. Using 2 SPDT relays I understand

Now I'm confused.
I thought you had no interest in using a DPDT relay with one switch.

 

Now I'm confused.
I thought you had no interest in using a DPDT relay with one switch.

Oh boy. I don’t. I was responding to Ya’Akov’s post.
I am going to go with your wiring of the 2 SPDT switches and see if everything works the way I want it to. Thank you for all your suggestions

 

If you post the pin connections of the relay you will use, I can show you.

Here are the relays I plan on using. Is the wiring the same as what you posted above?

Is the wiring for the second relay exactly the same or do the NO and NC need to be reversed? Thanks

 

Here are the relays I plan on using. Is the wiring the same as what you posted above?

Yes.

 

Yes.

Is the wiring for the second relay exactly the same or do the NO and NC need to be reversed? Thanks

 

Is the wiring for the second relay exactly the same or do the NO and NC need to be reversed? Thanks

Both are identical.
That way, when both switches and relays are off, both motor relay contacts will be connected to ground, and there is no voltage on the motor windings.

 

Both are identical.
That way, when both switches and relays are off, both motor relay contacts will be connected to ground, and there is no voltage on the motor windings.

Perfect. I will attempt this tomorrow. Thank you again