Airwell HDD 009, Manual

Page: 29 / 54

AN COMPANY
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Compressor Target Speed Settings PI.

    T I P T Load
Const Const
* *
int SetPo RoomTemp T   
Proportional
Part
Integrative
Part
Takes the effect of the
accumulated values (the history)
PI control
Room
Temperature
Set Point
Immediate response for user
set point change
Example: Pcoeff =20, Icoeff = 5
Time ∆T Ppart Ipart LOAD
0 5 100 0 100
1 5 100 0+25=25 125
2 3 60 25+15=40 100
3 1 20 40+5=45 65
4 0 0 45+0=45 45
5 0 0 45+0=45 45
6 -1 -20 45-5=40 20