I have never had trouble really with my brewpi but it seems like the fridge ran for a long time and when it got to beer temp the fridge set point was still low and continued to run
Total run time 8 hrs "it goes up because I unplugged it to give it a rest
Do I need to adjust some settings
Its almost like its being really slow to react
I need a lot more info to be able to offer advice.
A copy of your control algorithm page, your version, your hardware setup.
Sorry I’m only using my phone at the moment but the over shoot in the begin seems to have worked itself out and is running perfect
I am using the latest update before the beta I believe. Mini fridge and a paint can heater in a home built chamber
I will give you the numbers as soon as I can get to a computer
Beer-to-Fridge proportional gain (Kp) 2
Send to Core
Beer-to-Fridge integral time constant (Ti) 7200
Send to Core
Beer-to-Fridge derivative time constant (Td) 1200
Send to Core
Maximum difference between fridge and beer set point (= output of PID) 18
.
Send to Core
Beer-to-Fridge Input filter delay time 18
Send to Core
Beer-to-Fridge Derivative filter delay time 159
Send to Core
Cooler proportional gain (Kp) 10
Send to Core
Cooler integral time constant (Ti) 1800
Send to Core
Cooler derivative time constant (Td) 200
Send to Core
Cooler PWM period (seconds) 1200
Send to Core
Cooler minimum OFF time 1200
Send to Core
Cooler minimum ON time 900
Send to Core
Cooler Input filter delay time 18
I
Send to Core
Cooler Derivative filter delay time 159
Send to Core
Heater 1 proportional gain (Kp) 10
Send to Core
Heater 1 integral time constant (Ti) 600
Send to Core
Heater 1 derivative time constant (Td) 60
Send to Core
Heater 1 PWM period (seconds) 120
Send to Core
Heater 1 Input filter delay time 18
Send to Core
Heater 1 Derivative filter delay time 159
Send to Core
Heater 2 proportional gain (Kp) 10
Send to Core
Heater 2 integral time constant (Ti) 600
Send to Core
Heater 2 derivative time constant (Td) 60
Send to Core
Heater 2 PWM period (seconds) 120
Send to Core
Heater 2 Input filter delay time 18
Send to Core
Heater 2 Derivative filter delay time 159
Send to Core
Dead time when switching between actuators 1800
Send
Ok, there are some changes in 0.4.3 and there will be some more in 0.4.4 to help with overshoot for big steps. If it is working fine for the rest, I wouldn’t worry about it and see how the updates work.
