Cody Anderson
Member
Hello All,
I am trying to figure out the best way to control a system I am working on. I have 2 bags of peanuts being lifted up by hoist. I am keeping track of the weight of each bag using a hangable scale. The scale is between the bag and hoist. Each bag is hung over a vibrator station. The peanuts fall into a square box vibrator and then sent into a roaster/mixing bowl. I am controller the vibrators with a 4-20 Ma signal.
I have two types of peanuts. Bigs and Smalls. I want to be able to choose a percentage of each type to mix. So say 90 percent bigs and 10 percent smalls. Their old system ran at about 12,500 lbs/hr so I am trying to maintain that flow still. The bags weigh about 2100 lbs. I will definitely want to keep track of the weight loss and I know I would use that in the PID loop, but is this the best or only way to control this system accurately?
Thanks in Advance!
Cody Anderson
I have set up a temperature PID loop before, one that really didn't have to be super reactive. I don't have a ton of experience on PID loops.
I am trying to figure out the best way to control a system I am working on. I have 2 bags of peanuts being lifted up by hoist. I am keeping track of the weight of each bag using a hangable scale. The scale is between the bag and hoist. Each bag is hung over a vibrator station. The peanuts fall into a square box vibrator and then sent into a roaster/mixing bowl. I am controller the vibrators with a 4-20 Ma signal.
I have two types of peanuts. Bigs and Smalls. I want to be able to choose a percentage of each type to mix. So say 90 percent bigs and 10 percent smalls. Their old system ran at about 12,500 lbs/hr so I am trying to maintain that flow still. The bags weigh about 2100 lbs. I will definitely want to keep track of the weight loss and I know I would use that in the PID loop, but is this the best or only way to control this system accurately?
Thanks in Advance!
Cody Anderson
I have set up a temperature PID loop before, one that really didn't have to be super reactive. I don't have a ton of experience on PID loops.