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Author Topic: 4060 Counter at Power UP  (Read 3046 times)

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Offline Del TapparoTopic starter

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4060 Counter at Power UP
« on: December 11, 2012, 11:05:25 pm »
Does anyone know if a 4060 counter will retain its count? i.e. When I power it up without a reset, will it continue counting from previous count?

I wouldn't think so, yet I have a device that appears to work that way.
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Offline ivan747

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4060 Counter at Power UP
« Reply #1 on: December 11, 2012, 11:59:27 pm »
It shouldn't retain anything.

Are you sure the voltage drops to 0 when you cut the power to your circuit?
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Offline Del TapparoTopic starter

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Re: 4060 Counter at Power UP
« Reply #2 on: December 12, 2012, 12:16:15 am »
Yes. The circuit only has the one chip (4060). It runs a motor for a specified period of time, stops for a delay period, reverses the motor, and repeats. The motor operates an arial tramway. The cars always stop at the station (end points), after proper setup of course. When you cut power, the tram stops anywhere between the ends. But when you power up, it always runs to the end point and stops properly. There are NO limit switches or any kind of position sensing. The only thing that makes sense to keep all of the timing in sync, is the 4060 retains the count.
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Offline ivan747

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4060 Counter at Power UP
« Reply #3 on: December 12, 2012, 01:02:32 am »
Perhaps the 4060 continues to receive power from a battery or large capacitor, therefore keeping its count.

 I don't like the idea of a tramway without feedback, sounds dangerous.
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Offline Del TapparoTopic starter

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Re: 4060 Counter at Power UP
« Reply #4 on: December 12, 2012, 01:10:54 am »
Power can be off for long periods of time (30 mins, 1 hour), and it still works. (The tram is a model)
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Offline ivan747

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4060 Counter at Power UP
« Reply #5 on: December 12, 2012, 01:20:14 am »
I don't know what else could else going on but I doubt the chip is retaining its count. Try to hook up a multimeter in parallel with the motor (autoranging off) and see if the motor still tries to run when the carts reach the end.
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Offline Del TapparoTopic starter

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Re: 4060 Counter at Power UP
« Reply #6 on: December 12, 2012, 02:01:14 am »
OK. I finally figured it out. I was trying to under stand the controller without actually setting up the whole system. The tram cars just hit an end stop and the motor keeps running. Nothing to do with the 4060. I knew the units motor kept running, but just assumed I had a bad one, because I didn't understand it. A friend just loaned me his, and it does the same thing.

Sorry to waste your time. Thank you for the response.
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Offline Simon

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Re: 4060 Counter at Power UP
« Reply #7 on: December 12, 2012, 07:13:06 am »
Quote from: Del Tapparo on December 12, 2012, 02:01:14 am

Sorry to waste your time. Thank you for the response.

No waste of time, you sorted it out didn't you ?  :)
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