Scaling An Analog Value; Using The Potentiometers Of The 40 And 50 Series - ABB AC 31 Technical Manual

5.10. Scaling an analog value

ABB Control - AC 31
1SBC 260400 R1001-b 06.99
Programming

5.10.1. Using the potentiometers of the 40 and 50 series

The 40 and 50 series central units each have two potentiometers, which allow the adjustment
of parameters without a programming tool.
The MULDI function block may be used for scaling.
The desired setting range in this example is from 0 to 30 000:
Setting range
30000
y
0
The value y set is such that: y = (30 000 * x) / 150 . The result y is placed in the variable
MW 000.00.
POTENTIOMETER_1
VAL_30000
VAL_150
Value read in the
central unit
150
x
0
*:
Z1*
Z2:
%MW000.00
Z3 A1
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