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II.USERS
IM TEMI 770E_C 2nd Edition: Sep. 1. 2003. 31/40
5-6-4-2. HUMI PID(Humidity)
Figure 5-6-10 HUMI PID
①
HUMI REFERENCE
: Set the boundary value about humi span of PID zone.
②
AUTO TUNING GROUP
: Go to the PID Group for PID(1~9) for change the PID value.
☞
Refer TEMP PID for detail function.
③
Tuning point : Set the range of value for starting or stopping MV when the Auto Tuning
☞
Ex) Range 0% ~ 100.0
℃
, TUNING POINT 1.0%, SV = 80.0% then
The meaning of TUNING POINT 1.0% is 1.0% for 100.0% (Full scale) so
the range will be 1.0%.
So if PV=81.0% then MV will be 0.0% and if PV=79.0% then MV will be 100.0%.
Both of OH, OL effect on both TEMP & HUMI when the AUTO TUNING.
☞
Ex) Auto Tuning can be doing only on Fix running, Auto Tuning is doing with SP and
the result will be saved automatically on the zone which is for SP.
(Table 5-11) TEMP HUMI PARAMETER
Name
Function
Valid Range
Unit
Default Value
H1
HUMI REFERENCE 1
H.EU (0~100%)
H.EU
H.EU (0%)
H2
HUMI REFERENCE 2
H.EU (0~100%)
H.EU
H.EU (0%)
RHY
HYSTERESIS BAND
H.EU (0~10%)
H.EU
H.EU (0.5%)
TUNING POINT
AT TUNING POINT
T.EUS (0.01~1.00%)
T.EUS
T.EUS(0.1%)
Figure 5-6-9 PID1~PID9
②
①
③