10/14/2018 3:55 PM | |
Posts: 5 Rating: (0) |
Hi Hadi, I understand this might be unrelated, but this is my first time here and I am facing commissioning deadline. I am using CONT_C in a function block. I call the FB in a Cyclic Program (OB32). when the PID is in manual I can change the Block CV by entering a manual value of 0-100%. The problem is starts when I put the loop in Automatic. It is a simple Flow control loop. As soon as I put the loop in Automatic, the loop becomes very unstable. Proportional gain is 0.1, Ti is 0 ms, PV_FAC=1. Derivative is also 0. SP=1100, PV (0-1800). ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 10/15/2018 9:05:29 AMNew subject after splitting |
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10/14/2018 4:01 PM | |
Joined: 12/18/2014 Last visit: 4/23/2024 Posts: 32871 Rating: (4064) |
One post for the same problem is enough. You don't Need to make 3 posts. |
10/15/2018 9:15 AM | |
Joined: 6/19/2017 Last visit: 4/23/2024 Posts: 7956 Rating: (162) |
Closed cause question posted twice.
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