First fermentation using my brewpi from the beginning, and I am wondering why the compressor isn’t cooling down to fridge setpoint? Before I pitched the yeast it was holding the beer steady at setpoint really well, now it isn’t cooling down to where it needs to go so the temp is a little high. Here is my build Fermentation chamber build (Vissani MVWC52B wine cooler hack)
{
"kind": "Control",
"pids": [
{
"kind": "Pid",
"name": "heater1",
"enabled": true,
"setPoint": {
"kind": "SetPointSimple",
"name": "fridgeset",
"value": 17.2227
},
"inputSensor": {
"kind": "TempSensorFallback",
"onBackupSensor": false,
"sensor": {
"kind": "TempSensor",
"name": "fridge",
"sensor": {
"kind": "OneWireTempSensor",
"value": 22,
"connected": true,
"address": "280B5CC10700009E",
"calibrationOffset": 0
}
}
},
"inputError": 4.7852,
"Kp": 10,
"Ti": 600,
"Td": 60,
"p": -47.8516,
"i": 0,
"d": -0.0391,
"actuatorIsNegative": false,
"outputActuator": {
"kind": "ActuatorPwm",
"value": 0,
"period": 4,
"minVal": 0,
"maxVal": 100,
"target": {
"kind": "ActuatorMutexDriver",
"mutexGroup": {
"kind": "ActuatorMutexGroup",
"deadTime": 3600000,
"waitTime": 827008
},
"target": {
"kind": "ActuatorPin",
"state": false,
"pin": 16,
"invert": false
}
}
}
},
{
"kind": "Pid",
"name": "heater2",
"enabled": true,
"setPoint": {
"kind": "SetPointSimple",
"name": "beer2set",
"value": null
},
"inputSensor": {
"kind": "TempSensor",
"name": "beer2",
"sensor": {
"kind": "TempSensorDisconnected",
"value": null,
"connected": false
}
},
"inputError": null,
"Kp": 10,
"Ti": 600,
"Td": 60,
"p": 0,
"i": 0,
"d": 0,
"actuatorIsNegative": false,
"outputActuator": {
"kind": "ActuatorPwm",
"value": 0,
"period": 4,
"minVal": 0,
"maxVal": 100,
"target": {
"kind": "ActuatorMutexDriver",
"mutexGroup": {
"kind": "ActuatorMutexGroup",
"deadTime": 3600000,
"waitTime": 826943
},
"target": {
"kind": "ActuatorNop",
"state": false
}
}
}
},
{
"kind": "Pid",
"name": "cooler",
"enabled": true,
"setPoint": {
"kind": "SetPointSimple",
"name": "fridgeset",
"value": 17.2227
},
"inputSensor": {
"kind": "TempSensorFallback",
"onBackupSensor": false,
"sensor": {
"kind": "TempSensor",
"name": "fridge",
"sensor": {
"kind": "OneWireTempSensor",
"value": 22,
"connected": true,
"address": "280B5CC10700009E",
"calibrationOffset": 0
}
}
},
"inputError": 4.7852,
"Kp": 10,
"Ti": 1800,
"Td": 200,
"p": -47.8516,
"i": 0,
"d": -0.1953,
"actuatorIsNegative": true,
"outputActuator": {
"kind": "ActuatorPwm",
"value": 48.0469,
"period": 1200,
"minVal": 0,
"maxVal": 100,
"target": {
"kind": "ActuatorMutexDriver",
"mutexGroup": {
"kind": "ActuatorMutexGroup",
"deadTime": 3600000,
"waitTime": 826867
},
"target": {
"kind": "ActuatorTimeLimited",
"minOnTime": 300,
"minOffTime": 600,
"maxOnTime": 65535,
"state": false,
"target": {
"kind": "ActuatorPin",
"state": false,
"pin": 17,
"invert": false
}
}
}
}
},
{
"kind": "Pid",
"name": "beer2fridge",
"enabled": false,
"setPoint": {
"kind": "SetPointSimple",
"name": "beer1set",
"value": null
},
"inputSensor": {
"kind": "TempSensor",
"name": "beer1",
"sensor": {
"kind": "OneWireTempSensor",
"value": 23.6875,
"connected": true,
"address": "288269C00700003B",
"calibrationOffset": 0
}
},
"inputError": null,
"Kp": 2,
"Ti": 7200,
"Td": 1200,
"p": 0,
"i": 0,
"d": 0,
"actuatorIsNegative": false,
"outputActuator": {
"kind": "ActuatorSetPoint",
"targetSetPoint": {
"kind": "SetPointSimple",
"name": "fridgeset",
"value": 17.2227
},
"targetSensor": {
"kind": "TempSensor",
"name": "fridge",
"sensor": {
"kind": "OneWireTempSensor",
"value": 22,
"connected": true,
"address": "280B5CC10700009E",
"calibrationOffset": 0
}
},
"referenceSetPoint": {
"kind": "SetPointSimple",
"name": "beer1set",
"value": null
},
"output": 127.9961,
"achieved": 127.9961,
"minimum": -10,
"maximum": 10
}
}
]
}
