Set Up Maths - ABB COMMANDER 1900 Series User Manual

• Maths
...5 ADVANCED CONFIGURATION LEVEL

5.2 Set Up Maths

In this Section, parameters in the lower display denoted
programmed with these settings.
SEt UP
MAtHS
SELECt
CNSt–8
CNSt–1
bLK–4
bLK–1
NONE
NONE
CNST–x BLK–x
CONSt
0
dECPt
0
FUNCtN
AVErGE
LO–VAL
HI–VAL
MASS–2
MASS–1
rH
Std
OFF
OFF
bLKx–1
STD
––
bULb–1
RH
––
HI–VAL
INPUt
LO–VAL
––
MASS–2
IPUt–A
MASS–1
––
INPUt
AVERAGE
––
22
Page Header – Set Up Maths.
To advance to the
Set Up Timer
Select Maths Function
Select the maths function or constant to be programmed:
CNSt–1 8
to –
bLK–1 4
to –
NONE
–
Constant Value
Set an arithmetic value, between –9999 and +9999.
Constant Decimal Point
Set the number of decimal places required for the constant value (0 to 3 places).
Maths Block Function
Select the maths block function required:
AVErGE
– Averages a continually varying input over a set period of time
LO–VAL
– Holds minimum value measured on input variable
HI–VAL
– Holds maximum value measured on input variable
MASS–2
– Calculation of mass flow from differential pressure
MASS–1
– Calculation of mass flow from volume flow
rH
– Relative Humidity calculation
Std – Standard maths block
OFF
– Maths function not selected
Standard maths block selected. Continued on next page.
Relative Humidity (RH) selected. Continued on page 24.
High or low value selected. Continued on page 24.
Mass flow 1 or 2 selected. Continued on page 25.
Average selected. Continued on page 26.
are Company Standard Settings. The instrument is dispatched
page press the switch.
Constant 1 to 8, arithmetic value used as multiplier/divisor or for
addition/ subtraction
Maths block 1 to 4
No function selected