12/29/2021 6:22 PM | |
Joined: 12/19/2021 Last visit: 1/9/2022 Posts: 19 Rating:
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Waow, by setting gain to 1 and offset to 0 did solve it and works now correctly. As I did not set this gain in the PI, it has been set automatically, and seems I have overlooked this one. Can I ask you another question? If I would like to use a 3 way valve with a two direction 220V motor instead of a proportional valve (4 to 20mA), how could we program two digital ouputs one to open the valve and one to close depending on PI controller deviation? Thanks ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 12/30/2021 08:41:10New subject after splitting |
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12/29/2021 6:29 PM | |
Joined: 12/19/2021 Last visit: 1/9/2022 Posts: 19 Rating:
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Many Thanks. Will be another option which I will used. |
12/29/2021 6:39 PM | |
Joined: 12/19/2021 Last visit: 1/9/2022 Posts: 19 Rating:
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Do you have an example how to program a 3 point step controller? |
12/29/2021 6:45 PM | |
Joined: 12/18/2014 Last visit: 9/12/2024 Posts: 33750 Rating:
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Or try this with two PI controllers.
AttachmentPI_controller_example_0BA8.Standard_V2.zip (677 Downloads) |
12/30/2021 1:17 PM | |
Joined: 12/18/2014 Last visit: 9/12/2024 Posts: 33750 Rating:
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Here is an example of a 3-point step controller. It has two hysteresis areas. Attachment3-point_step_controller_0BA8.Standard.zip (674 Downloads) |
12/31/2021 6:13 PM | |
Joined: 12/18/2014 Last visit: 9/12/2024 Posts: 33750 Rating:
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You can use Solid State Relays ... |
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