emptying unwinder sensor
emptying unwinder sensor
(OP)
The machine is an horizontal spooler used to unwind reels full of Mig welding wire
I want to install some kind of warning devise that signals once a reel full of wire if almost empty
I am planning to use an already installed distance sensor that sends a 0-10V to the unwinder´s motor controller for speed compensation due to the fact the diameter decreases
The signals for the distance sensor are:
Full reel: 2 V
Empty reel: 6,75 V
I was thinking on a relay the switches ON at 6V.
Any helpful ideas will be appreciated
I want to install some kind of warning devise that signals once a reel full of wire if almost empty
I am planning to use an already installed distance sensor that sends a 0-10V to the unwinder´s motor controller for speed compensation due to the fact the diameter decreases
The signals for the distance sensor are:
Full reel: 2 V
Empty reel: 6,75 V
I was thinking on a relay the switches ON at 6V.
Any helpful ideas will be appreciated





RE: emptying unwinder sensor
"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
RE: emptying unwinder sensor
Can I buy one or what?
RE: emptying unwinder sensor
Here's one, the Allen Bradley Micro810 (full disclosure, I work for them, different division, but it's a product I know).
If you get the version that has 24VDC inputs, it comes with 4 relay outputs and 8 digital inputs, but 4 of them can be converted to 0-10VDC analog inputs in programming. So you would take your analog signal from the sensor into one of those and once the unit has it, you can program the outputs to trigger off of the values. Programming can be done on the front plate, or on a PC with free software. You can usually buy one for under US$100.
There are dozens of other suppliers such as Siemens (who originated the idea), Moeller, Mitsubishi, Schneider, Teco, LG, the list goes on and on, and many of them brand-label products from each another. Many do not come with the ability to accept an analog input however, unless you add another accessory to it, which increases the size and cost.
"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
RE: emptying unwinder sensor
Siemens Logo. So to do what I want I need to add the analog module for it
thanks
RE: emptying unwinder sensor
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: emptying unwinder sensor
RE: emptying unwinder sensor
RE: emptying unwinder sensor
April 1st was one month ago...
Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.
RE: emptying unwinder sensor
Strangely enough, ebay doesn't have any simple voltage monitor boards under $10. Here is the how to picture. Just want to remind people how easy it is to make a relay driver with this chip.
It looks like maybe I can't upload two pictures. If one only shows up this is a plasma pipe cutter I updated for a union welding school. It was donated to one school and they and the factory couldn't get it to work. It was a one of a kind R&D model that never made it into production. My friend got it for his union school and I was donated. I like welders We made a massive pipe cutter that will do up to a 30 inch pipe about 40 feet long. The frame weighs about 5 tons. We also did an 8 by 8 foot CNC plasma cutting table. Some weld shops don't have a problem building things.
RE: emptying unwinder sensor
RE: emptying unwinder sensor
Keith Cress
kcress - http://www.flaminsystems.com