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Farm Machinery
Workshop Projects
Making auto weigher. Electronics.
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<blockquote data-quote="milkloss" data-source="post: 5966030" data-attributes="member: 56"><p>Not sure it will quite be as simple as that if the conveyor has a bit of momentum but I guess you can tweak the weight to sort that. Make sure the relay will have the capacity to switch the motor.</p><p></p><p>I would use a weighing thingy with relay (never seen one tbh) to break the current to a contactor, you need a normally closed (NC) relay on the weigher. That way: underweight gives power to contactor momentary on switch so you can turn on. When up to weight relay breaks the power in the contactor coil and makes it dead until you momentarily push the on button again. Gives you a chance to remove bag, put the empty one under and push the button.</p></blockquote><p></p>
[QUOTE="milkloss, post: 5966030, member: 56"] Not sure it will quite be as simple as that if the conveyor has a bit of momentum but I guess you can tweak the weight to sort that. Make sure the relay will have the capacity to switch the motor. I would use a weighing thingy with relay (never seen one tbh) to break the current to a contactor, you need a normally closed (NC) relay on the weigher. That way: underweight gives power to contactor momentary on switch so you can turn on. When up to weight relay breaks the power in the contactor coil and makes it dead until you momentarily push the on button again. Gives you a chance to remove bag, put the empty one under and push the button. [/QUOTE]
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Making auto weigher. Electronics.
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