Festo IFB05-03 Manual page 135

A. Technical appendix
Festo P.BE−VIFB5−03−EN en 0503e
Calculating with a formula
Proceed as follows:
1. Calculate the maximum current consumption of the inputs
and electronics (I
2. Calculate the lowest voltage to be expected during oper
ation (V ) on the power unit. When doing this, please
min
note:
the load dependency of the power unit
the fluctuations in the primary mains voltage
3. Enter the values in the formula below. The equivalent cir
cuit diagram and the example explain the correlation.
) as well as of the outputs/valves (I
1
).
2
A−9