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Thread: ATO programming issue

  1. #1
    Regular Vistor
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    ATO programming issue

    Hi all, I currently am running a BRS 50ml peristolic pump for my ATO on my 2016 Apex. I am using floats to control it, bottom for on off and top float to shut off /alarm if failure of bottom float. It is controlled through a breakout box. My issue is, the switch calls for the pump to turn on, but it don’t turn on. I can turn the pump on in fusion, but once in auto, it stops turning on when it should. It is plugged into my EB832. Do any of you see an issue with the program?

    Program:
    Fallback Off
    Set off
    If ato_b closed then on
    If ato_t open then off
    Defer 010:00 then on

  2. #2
    Frequent Contributor zombie's Avatar
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    You need to wait 10 minutes for it to activate and you need to verify that the floats currently read closed for both for it to turn on.

    You also need failsafes like a min time statement to prevent short cycling and a when statement to limit run time, but get just this part working first.

    Sent from my SM-G965U using Tapatalk

  3. #3
    Regular Vistor
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    Quote Originally Posted by zombie View Post
    You need to wait 10 minutes for it to activate and you need to verify that the floats currently read closed for both for it to turn on.

    You also need failsafes like a min time statement to prevent short cycling and a when statement to limit run time, but get just this part working first.

    Sent from my SM-G965U using Tapatalk
    I have waited the 10 minutes and more for it to turn on. I also have looked at the floats to verify.

    It is a small distance the float has to move between on and off......I thought maybe that could be the problem, but I have talked to others who successfully operated with just 1 float for on/off. I guess I’m thinking if I watch the breakout box switch change and call for water, I should be able to wait 10 min and it will start. Are there any variables that come into play during that 10 minutes that could stop it from coming on? Also can you give me a suggestion on wording the program better? Thank you for your help

  4. #4
    Frequent Contributor zombie's Avatar
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    Have you verified both floats close when low and open when high?

    If so, just temporarily move them both higher and delete the defer for testing purposes. Once verified, use a code like this.

    Fallback Off
    Set off
    If ato_b closed then on
    If ato_t open then off
    Defer 000:10 Then ON
    Defer 000:04 Then OFF
    When On > 005:00 Then OFF
    Min Time 060:00 Then OFF

    Sent from my SM-G965U using Tapatalk

  5. #5
    Frequent Visitor Todd's Avatar
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    Quote Originally Posted by Sevitz5 View Post
    Are there any variables that come into play during that 10 minutes that could stop it from coming on?
    Yes, the ato_b switch must stay CLOSED for a continuous 10 minutes, before the outlet can go ON. So if the switch is bouncing, that could extend the time delay. While testing, either delete the DEFER as suggested or set it to a few seconds.

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