Fuji Electric FRENIC-HVAC User Manual page 355

6.3 Details of Function Codes
Gain and bias

Input
Frequency command 1 (F01) Frequency command 2 (C30)
terminal
[12]
[C1]
[V12]
If F01 = 3 (the sum of [12] + [C1] is enabled), the bias and gain are independently
applied to each of the voltage and current inputs given to terminals [12] and [C1],
and the sum of the two values is applied as the reference frequency.
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