ABB COMMANDER 1900 Series User Manual page 26

• Maths
...5 ADVANCED CONFIGURATION LEVEL
...5.2 Set Up Maths (Relative Humidity)
FUNCtN
rH
bULb–1
CNSt–8
PV–1
bULb–2
CNSt–8
PV–1
SELECt
––––––
...5.2 Set Up Maths (High and Low Detect)
FUNCtN
HI–VAL
or
FUNCtN
LO–VAL
INPUt
CNSt–8
PV–1
rSt. S rc
SEG 99
NONE
SELECt
––––––
24
Wet-bulb Input
Select the process variable source required for wet-bulb input.
For description of process variable sources, refer to Table 5.1 on page 26.
Dry-bulb Input
Select the process variable source required for dry-bulb input.
For description of process variable sources, refer to Table 5.1 on page 26.
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Select Maths Function
High/low Input
Select the variable source whose minimum or maximum value is to be detected.
For a description of input/output sources, refer to Table 5.1 on page 26.
Reset High/low Input
Select the digital source required to reset the minimum or maximum value.
For a description of digital sources, refer to Table 2.1 on page 10.
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Select Maths Function
frame.
frame.