Blackbuck 6 Momentary Switch Question

[Ricker]

Hey everyone, I have a quick question about installing my momentary switch on my Blackbuck 6 Driver. I have installed it exactly like x-wossee has it in the diagram. When I went to test it with my test load, for some reason when I pressed the momentary switch down, it turned the current off to the test load and DMM, and turned it back on when I let off of the switch. I know the switches legs that are pointed towards each other are connected, and the others are not connected until pressed. I confirmed this with my DMM as well. So I know the legs I'm using are correct.
Am I an idiot and reading the diagram wrong, thus wiring it wrong? It doesn't seem to make sense due to the current being able to bypass the switch all together the way I have it wired currently.
Is it only meant to be wired like this using an ON/OFF switch as he has shown?
If so, is it possible to run the momentary switch i am currently using in line with just the single ground wire going to the driver, or is that not okay due to too high amperage?
Thanks for everyone's time and help!

 

[dden4012]

Open is on by default. That would leave closed to being off. Right? In other words if you just didn't use that feature and hooked it up like usual it would work and those pads would be an open circuit. If closing the circuit powers it down then there you go that's how it works. If the driver requires you to solder bridge those two pads if not in use then I'm completely wrong.

 

[paul1598419]

Looks like a TTL input to me. That would make a high, on, and ground, off. I'm not familiar with this driver though, so maybe someone who is will chime in.

 

[Ricker]

Open is on by default. That would leave closed to being off. Right? In other words if you just didn't use that feature and hooked it up like usual it would work and those pads would be an open circuit. If closing the circuit powers it down then there you go that's how it works. If the driver requires you to solder bridge those two pads if not in use then I'm completely wrong.

It is closed DISCONNECTED by default, only open CONNECTED when it's pressed.

Edit: I have the closed and open backwards, I wasn't thinking.

 

[dden4012]

It is closed by default, only open (connected) when it's pressed.

http://www.aecsensors.com/html/a-push-button-switches.html

I think you want a normally closed (N.C.) momentary switch if when you complete the circuit the laser turns off. That way when you press the switch button the switch will disconnect (open) the circuit and the laser turns on. If your host has a tail cap button it would act as an arming switch.

 

[BobMc]

dden is correct you need a "normally closed" switch. His explanation is on point. Good explanation dden.

 

[paul1598419]

This is just how a TTL input would work. I think that is what it is. If it has 5 VDC on the pad with the switch open, that would clinch it. The switch grounds the pad bringing it 0 VDC.

 

[Shotgundrums]

Ya know, I was wondering this myself. Thanks for asking the question, Ricker!! And for all others' input, too

 

[Ricker]

My terminology was backwards it is only connected when pressed.

So that means I do have exactly what you're saying Dden, how is it shutting off when i press the button down, closing the loop? And could I just run it in line with JUST the ground, making it work that way?

 

[paul1598419]

My terminology was backwards it is only connected when pressed.

So that means I do have exactly what you're saying Dden, how is it shutting off when i press the button down, closing the loop? And could I just run it in line with JUST the ground, making it work that way?

That pad is like a TTL input. When it is high (5 VDC), it is on. When it is low (ground), it is off. The switch grounds the pad that seems to float at 5 VDC. That is why it won't work the way you want it to. To use it you will have to find a switch that opens the circuit when it is pushed. Hope that makes sense to you.

 

[RB astro]

That pad is like a TTL input. When it is high (5 VDC), it is on. When it is low (ground), it is off. The switch grounds the pad that seems to float at 5 VDC. That is why it won't work the way you want it to. To use it you will have to find a switch that open the circuit when it is pushed. Hope that makes sense to you.

I would think that switch may have both N.C and N.O contacts wouldn't it?
If so, he can solder it to the appropriate contact.

 

[paul1598419]

It's a tactile switch. Most have only push to connect, but some momentary switches do have a double throw configuration. You would have to choose your switch carefully in order to get that effect.