Timer Question
Timer Question
(OP)
I have a need for a timer that can do the following,
We burn in components and sometimes need to pulse the burn in. The typical voltage is 12V and I can intercept the wiring between the power supply and the burn in board.
I'd like the ability to be able to pulse for a short period of time <1 min and also to allow it to run for a longer period of time <5 mins.
Is there something off the shelf that can do this for me, and where would I go looking for it.
Also, if I am in the wrong area (forum), that's more proof of how lost I am ;)
We burn in components and sometimes need to pulse the burn in. The typical voltage is 12V and I can intercept the wiring between the power supply and the burn in board.
I'd like the ability to be able to pulse for a short period of time <1 min and also to allow it to run for a longer period of time <5 mins.
Is there something off the shelf that can do this for me, and where would I go looking for it.
Also, if I am in the wrong area (forum), that's more proof of how lost I am ;)
drawn to design, designed to draw





RE: Timer Question
Here's one of the UK catalogue pages to give you a start: http://uk
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If we learn from our mistakes I'm getting a great education!
RE: Timer Question
RE: Timer Question
1) Do you want it to repeat each burn in cycle once initiated and until you command it to stop? If so, that's called a "Repeat Cycle Timer" function.
2) If you want to initiate it and have it run once for the set time, then shut off until you initiate it again, that's called a 'One Shot Timer" function.
"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
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RE: Timer Question
This would be a repeat cycle timer. I think at this stage I am going to call Omron/Newark and see what they recommend.
drawn to design, designed to draw
RE: Timer Question
Hope that helps
RE: Timer Question
htt
Check them out. You can download and mess with the software, writing your whole app and simulating it before you buy anything.
The nice thing about a smart relay approach is that you can read back some part of your test hardware, say, a microswitch, that detects when the part broke. You can have this detection stop the cycling and ring a bell or turn on a red light, etc..
Keith Cress
kcress - http://www.flaminsystems.com
RE: Timer Question
I contacted factorymation this morning and the tech there was very helpful with my product selection. Now I wait for the UPS man to arrive.
drawn to design, designed to draw
RE: Timer Question
You can start the programming while you wait.
Have fun.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Timer Question
I thought the unit was a 24V powered unit capable of turning on/off my power regardless of the voltages.
drawn to design, designed to draw
RE: Timer Question
Keith Cress
kcress - http://www.flaminsystems.com
RE: Timer Question
drawn to design, designed to draw
RE: Timer Question
Let us know how you get on with the replacement.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Timer Question
Is there another option for me?
drawn to design, designed to draw
RE: Timer Question
xnuke
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Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Timer Question
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If we learn from our mistakes I'm getting a great education!
RE: Timer Question
drawn to design, designed to draw
RE: Timer Question
You will have large inrush on closing and some inductance on opening. The relays in smart relays do not like that at all.
So as XNuke suggests you need some interposing relays.
Back to the same place...
http://ww
You'll want some relays with AT LEAST a 10A rating. I'd go for more. Like 15 or 20A personally. You will also want panel mounting sockets.
Think about a push to test button too. Some relays come with that feature. If it could be useful in your case go with that option. Sometimes in test setups that can be useful. "Is that lamp pointed/working correctly?"
How often are you cycling these relays? If you are running clickity, clickity, clickity, standard relays might also have issues.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Timer Question
drawn to design, designed to draw
RE: Timer Question
Keith Cress
kcress - http://www.flaminsystems.com