U1 Codes (Customizable Logic Functions) - Fuji Electric FRENIC-HVAC User Manual

6.3.14 U1 codes (Customizable logic functions)

U101 to Customizable Logic (Conversion point 1 (X1, Y1), Conversion point 2 (X2, Y2),
U106 Conversion point 3 (X3, Y3))
U101 to U106 specify the three operating points for automatically calculating coefficients
(K , K
A B
flowrate signal) and coefficients (K
pressure). (Linearize function)
- Data setting range: -999.00 to 0.00 to 9990.00
U107 Customizable Logic (Automatic calculation of conversion coefficients)
U107 automatically calculates conversion coefficients (K
three operating points defined by U101 to U106.
The calculation results will be saved in U92 to U97. U107 automatically reverts to "0."
Data for U107
and K ) in conversion 1 ( K
C
Linearize characteristics example
0 Disable
1 Execute calculation (Arithmetic circuit: Conversion 1 (3001)
2
K × Input 1
A
2
× Input 1 + K × Input 1 + K
A B
, K and K ) produce target signals (e.g., target
A B C
A
Function
+ K × Input 1 + K
B C
6-270
). Input signals (e.g.,
C
, K and K ) according to the
B C