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Controllsperts?

Discussion in 'Commercial' started by Zman, Nov 16, 2017.

  1. Zman

    Zman Hanging by a Thread

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    Can anyone explain the differences between analog and binary. I got a decent explanation from someone smarter than me, which is just about anyone,but just want to hear different interpretations.
     
  2. Rather B Riding

    Rather B Riding Behind bars

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    I know nothing
    100011101001101100000110101010011
     
  3. jettinvr6sc

    jettinvr6sc New Member

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    Binary is On or Off
    Analog is modulating. Like 0-10vdc or 2-10vdc etc..



    Sent from my SM-N910T using Tapatalk
     
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  4. LemonWizard

    LemonWizard Blinky Lights Wizard

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    Doesn't get simpler that this.

    @Zman Is temperature analog or digital?
     
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  5. Sdeery

    Sdeery Machinist in training

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    [​IMG]
    sdeery
     
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  6. knave

    knave Undeterred

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    So on the CPC boards they have The relay boards which are digital, which also can have an analog output of 1 - 5 vdc, to the “digital” scrolls, lol

    Edit: it does make sense. the scroll is either “0” unloaded or “1” loaded, and the 1 - 5vdc signal to the scroll control board determines the % of loaded runtime.
     
  7. knave

    knave Undeterred

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    Thanks for asking this I learned something.
     
  8. crackertech

    crackertech assholiness *

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    That’s a multi flex board.:chairshot:
     
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  9. knave

    knave Undeterred

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    And so! (That’s a Paulie saying but who cares)
     
  10. LemonWizard

    LemonWizard Blinky Lights Wizard

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    Took a little while to understand that during last remodel. Kept wondering why the pressures were screwy and the thing was making a racket. Finally said the hell with the "modulation" BS and cranked each compressor to 100% so we could determine if the compressors actually worked.
     
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  11. Zman

    Zman Hanging by a Thread

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    That's the one I got.:)
     
  12. Zman

    Zman Hanging by a Thread

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    :headscratch: Analog?
     
  13. Zman

    Zman Hanging by a Thread

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    The Digital pic looks like a temperature schematic symbol...:headscratch:
     
  14. LemonWizard

    LemonWizard Blinky Lights Wizard

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    :pbj:You've got it.
     
  15. LemonWizard

    LemonWizard Blinky Lights Wizard

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    The digital would be more like a thermostat responding to temperature changes than it would the temperature itself. But yes I see what you're saying.
     
  16. pintofstout

    pintofstout New Member

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    Analog is usually either 0-10vdc, 2-10VDC, or 4-20ma. Or, with digi scrolls, it's 0-5 vdc.

    That stuff handles floating controls that have to match some sort of load.

    Binary generally is just a switch on or off, but can also set values on floating controls via PWM (Pulse width modulation). In PWM control, the binary output is timed and the time closed vs. Time Open equals a certain value.


    Sent from my iPhone using Tapatalk
     
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  17. heavyevans

    heavyevans FNG

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    Just so you guys know, 0VDC - 10VDC is a 0mA - 20mA signal with a 500 Ohm resistor in the circuit and a 2VDC-10VDC is a 4mA-20mA signal with a 500 Ohm resistor in the circuit.
    If I have the choice of selecting the signal, I will choose VDC because it is easier to troubleshoot. A mA signal requires disconnecting wires and placing a meter in series with the signal.
    The mA signal is always the only choice when the cable length is so long that a voltage drop would occur.
     
  18. HMD

    HMD does it matter?

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    run an air line!
     
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  19. crackertech

    crackertech assholiness *

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    20 pound
     
  20. HMD

    HMD does it matter?

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    18 will work, 20 is more better