PID Problem

[MantasJ]

So I've changed the script a bit, it now looks like this:

Code:

local P_value     =     6
local I_value     =     150
local kp_value     =     0.16
local ki_value    =     0.0017

if not P then
 
P = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_P_Output',
    kp                     =     kp_value,
    ki                     =     0,
    kd                     =     0
})

PI = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PI_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0
})
 
PID1 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID1_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.1
})
 
PID2 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID2_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.2
}) 

PID3 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID3_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.3
}) 
   
PID4 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID4_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.4
})
 
PID5 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID5_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.5
})
 
PID6 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID6_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.6
})
 
PID7 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID7_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.7
})
 
PID8 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID8_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.8
})
 
PID9 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID9_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     0.9
})
 
PID10 = PID:init({
    current         =     'RTC05_Current_Temperature',
    setpoint         =     'RTC05_Setpoint_Temperature_Status',
    output             =     'BD_PID10_Output',
    kp                     =     kp_value,
    ki                     =     ki_value,
    kd                     =     1
})
 
end
 
P:run()
PI:run()
PID1:run()
PID2:run()
PID3:run()
PID4:run()
PID5:run()
PID6:run()
PID7:run()
PID8:run()
PID9:run()
PID10:run()

Setpoint is 23C and current temperature is 22.3C. All controllers give out 0 percent. Why? I have tried enabling/disabling the script, changing kp and ki values with and without calculation formula (example above is without) - didn't help.