Hello everybody,
It's been a good while, hope everyone is doing well!
I've recently been task to setup a P.I.D. to control the water level in our sludge collection hoppers. I am using an Einfield S2-025-U-04 proportional control valve with an SMC cylinder and a SICK linear transducer for positional feedback of the cylinder to the Einfield valve.
I have a P.I.D. setup and controlling somewhat but cant seem to figure out how to completely take out the pulsation of the water level due to the output of the P.I.D. constantly updating and changing the output.
This is the first time I have ever touched a P.I.D. "As you can probably tell" so I don't know if this can be tuned out in the P.I.D. instruction completely or if I need to write logic to open up the acceptable window for level and only allow the P.I.D. to run when its outside that window.
Ideally I would like to keep the water level at around 15 in. I believe I could stand to do a plus or minus 1 in using compare statements to enable or disable the P.I.D. Not sure the best course to take.
Any help would be greatly appreciated.
Thanks,
It's been a good while, hope everyone is doing well!
I've recently been task to setup a P.I.D. to control the water level in our sludge collection hoppers. I am using an Einfield S2-025-U-04 proportional control valve with an SMC cylinder and a SICK linear transducer for positional feedback of the cylinder to the Einfield valve.
I have a P.I.D. setup and controlling somewhat but cant seem to figure out how to completely take out the pulsation of the water level due to the output of the P.I.D. constantly updating and changing the output.
This is the first time I have ever touched a P.I.D. "As you can probably tell" so I don't know if this can be tuned out in the P.I.D. instruction completely or if I need to write logic to open up the acceptable window for level and only allow the P.I.D. to run when its outside that window.
Ideally I would like to keep the water level at around 15 in. I believe I could stand to do a plus or minus 1 in using compare statements to enable or disable the P.I.D. Not sure the best course to take.
Any help would be greatly appreciated.
Thanks,