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[Solved] Electro-thermal actuator - common GND DC and AC - how to connect?

Egot 1233 10
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 18209902
    Egot
    Level 6  
    I want to connect an EMO TM electro-thermal actuator. In the wiring diagram there are wires
    1) GND (COM) - I read this as common ground
    2) 24VAC AC supply -
    3) Y valve control 0-10VDC (direct current)
    4) not connected
    Electro-thermal actuator - common GND DC and AC - how to connect? .
    As 24VAC power supply I want to use a toroidal transformer with two wires of the same colour coming out of it
    Electro-thermal actuator - common GND DC and AC - how to connect?
    The 0-10VDC control voltage is from the PLC where the analogue output and the second Ground output are marked
    Electro-thermal actuator - common GND DC and AC - how to connect?

    The question is how to connect all this
    and especially where to connect GND, which is supposed to be common for both 24V AC and 0-10 DC voltage
    Attachments:
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  • #2 18210129
    gag70
    Level 24  
    On the controller, you do not connect under AI (input) but under AO (output).

    The GND of the actuator must be connected to the Ground of the controller. If the controller has an isolated power supply, you still connect G0 (or 0VAC or GND or whatever it is called) of the power supply from Ground.
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  • #3 18210140
    Egot
    Level 6  
    Yes of course my mistake in the description - in the controller I connect under AO (output) - I corrected the schematic.
    The question remains how to connect the transformer - one wire under 24VAC. And the other?
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  • #4 18210146
    gag70
    Level 24  
    I have written above but it may not be clear. A photo of the controller with a description of the slats would be useful, then the problem will be solved.

    There could also be a symbol or a link to the data sheet.
  • #5 18210150
    Andrzej42
    Level 31  
    You have to use two power supplies: 24VDC and a 24VAC trafo - where GND will be common for DC and AC
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    #7 18210159
    gag70
    Level 24  
    Andrzej42 wrote:
    You have to use two power supplies: 24VDC and a 24VAC trafo - where GND will be common for DC ii AC
    .
    It depends on the controller. In ventilation and heating, 24VAC power was the standard until recently, and is still very common. New products tend to be universal, accepting AC and DC power
  • #8 18210163
    Egot
    Level 6  
    gag70 wrote:
    Andrzej42 wrote:
    You have to use two power supplies: 24VDC and a 24VAC trafo - where GND will be common for DC ii AC
    .
    It depends on the controller. In ventilation and heating, 24VAC power was the standard until recently, and is still very common. New products tend to be universal, accepting AC and DC power
    .
    My Loxone has a 24VDC power supply.
  • Helpful post
    #9 18210172
    gag70
    Level 24  
    Well, unfortunately two power supplies. The actuator only accepts AC, the controller only DC

    +24V power supply on:
    - +24V on the power plug on the controller

    0V of DC power supply on:
    - one 24VAC trafo lead,
    - Ground at the power plug on the controller,
    - Ground on analogue outputs connector AO
    - 0V of the actuator

    Second trafo lead on:
    - 24VAC at the actuator

    AO of the controller to:
    - 0-10V input of the actuator

    Both supplies via 1A fuses. Can be glass radio either 5x20 or D01 inserts ...
  • #10 18210178
    Egot
    Level 6  
    The last answer seems clear - I'll sit on it in the coming days and share the results
  • #11 18314402
    Egot
    Level 6  
    It took a while because I had other pressing matters, but I finally followed the advice and ... it works!
    Thank you for your help!
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Topic summary

The discussion revolves around connecting an EMO TM electro-thermal actuator, focusing on the integration of a 24VAC power supply and a 0-10VDC control signal from a Loxone miniserver. Key points include the necessity of a common ground (GND) for both AC and DC systems, with recommendations for wiring the transformer and the actuator. It is emphasized that two separate power supplies are required: one for 24VAC to power the actuator and another for 24VDC for the controller. The correct connections involve linking the GND of the actuator to the controller's ground and ensuring proper voltage inputs to the actuator from the controller's analogue output.
Summary generated by the language model.
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