Your explanation of how the feef forwrad in Level control works is very clear and easy to understand. Thank you vey much.
Yes, we have a second loop, flow control, using the LIC output as its remote setpoint.
Thank you for the advice, we do have some protections like Low Low level shutdown, and pressure controls firing etc..
What I would like to learn is how to integrate the Steam flow into the Drum Level controller PID. ALL I know is Steam flow will be a feed forward action...If you could please...
I am using SLC-503 to control the Drum Level with 3 elements.
Can sommeone please:
1. Explain the relation of Steam Flow and Drum Level in the LIC? I understood that Steam vill be a feedforwarded, then what is the role of Drum level?
2. What is the Gain and Reset and/or rate I should start...