Hydraulic fan system controller: hfs – High Country Tek HFS User Manual
Page 30
Hydraulic Fan System Controller: HFS
Fan
Full
Speed
Fan
zero
Speed
5
10
20
15
25
30
35
40
45
50
55
100%
P = 64, I = 0
Set point = 20 C
Overtemp = 30 C
Fan will go from zero to max
over 10 C.
P = 64, I = 0
Set point = 20 C
Overtemp = 50 C
Fan will go from zero to max over
30 C.
Setting the P term to 64 and the I term to 0, calibrates the controllers output to start giving current ( at the I Min
setting % ) at the „set point‟ temperature and to be at 100% output current ( I max setting % ) at the „Overtemp‟
temperature. This relationship is linear and ( depending on whether positive or negative logic is applied ) at 100%
controller output, the fan will be going at the fastest speed possible.
Temperature Sensor Information - Cont:
System Set-Up Hints:
30