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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 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
AutoGen_5279825 Posts: 3 Rating: (0)	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 Joined: 12/18/2014 Last visit: 9/3/2025 Posts: 35916 Rating: (4496)	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 Posts: 3 Rating: (0)	Here's the data sheet - Sauter typically used in commercial HVAC systems. Attachment sauter axm 117s valve actuator.pdf (644 Downloads)
AutoGen_5279825 Posts: 3 Rating: (0)	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 Joined: 12/18/2014 Last visit: 9/3/2025 Posts: 35916 Rating: (4496)	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 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!
AutoGen_5279825 Posts: 3 Rating: (0)
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This contribution was helpful to 1 thankful Users ixo65

11/9/2023 4:26 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/3/2025 Posts: 35916 Rating: (4496)	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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