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0-10VAC analogue output to control valve actuator

Created by: AutoGen_5279825 at: 11/9/2023 11:09 AM (5 Replies)

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11/9/2023 11:09 AM	Rate (0)
AutoGen_5279825 Joined: 11/9/2023 Last visit: 11/10/2023 Posts: 3 Rating: (0)	Hello! I am trying to design a LOGO! interface between a Nest thermostat and a fan coil unit. The fan coil unit has two 3-way valves, one for the hot circuit and one for the cold circuit, which are controlled by 24VAC electric valve actuators. These actuators expect a 0-10 VAC signal to tell them how far to open the valve. From the documentation, it appears that LOGO! expansion modules only supply analogue output in DC. Is there a recommended way to generate a 0-10VAC output? Thanks! Don in London
	Last edited by: AutoGen_5279825 at: 11/09/2023 13:43:51 Last edited by: AutoGen_5279825 at: 11/09/2023 13:44:58
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11/9/2023 2:11 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/6/2024 Posts: 34148 Rating: (4254)	Do you have a description or a link to the valves? I've never heard of 0-10VAC.

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11/9/2023 4:08 PM	Rate (0)
AutoGen_5279825 Joined: 11/9/2023 Last visit: 11/10/2023 Posts: 3 Rating: (0)	Here's the data sheet - Sauter typically used in commercial HVAC systems. Attachment sauter axm 117s valve actuator.pdf (535 Downloads)
	Last edited by: AutoGen_5279825 at: 11/09/2023 16:16:15
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11/9/2023 4:13 PM	Rate (1)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/6/2024 Posts: 34148 Rating: (4254)	I don't see anything of 0...10VAC. I read only 0...10V and that is DC, not AC.

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This contribution was helpful to 1 thankful Users AutoGen_5279825

11/9/2023 4:23 PM	Rate (0)
AutoGen_5279825 Joined: 11/9/2023 Last visit: 11/10/2023 Posts: 3 Rating: (0)	OMG I had assumed that since the power source is 24VAC the signal would be AC as well, but you are right! In that case this will be much easier, many thanks!

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This contribution was helpful to 1 thankful Users ixo65

11/9/2023 4:26 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/6/2024 Posts: 34148 Rating: (4254)	Good luck. Sometimes it's really good to have a second pair of eyes looking over it ...

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This contribution was helpful to 1 thankful Users AutoGen_5279825

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