Technical information

5 – PARAMETER DESCRIPTIONS
75
P51 Analog Output Span I/O 13
LCD Display
I/O: Aout Span
13 100 %
Range 0 – 125% (Default 100%)
Description The analog output signal can be scaled using the Analog Output Span parameter. For a 0-10V output
or 0-20mA output, a 100% scaling outputs the maximum voltage (10V) or current (20mA) when the
selected output function requests 100% output. A scale of 50% outputs 50% voltage/current when
the analog output function requests a 100% output.
NOTE: For a 4-20mA output, set the Analog Output Span to 80% and the Analog Output Offset to
20%.
NOTE: The output does not exceed 100% (10V or 20mA).
See Also Analog Output Offset parameter on page 75
Example: 0% output => 4mA, 100% output => 20ma
Analog
Output
Selected Output
value = 100%
Aout Offset
= 20%
10V /
20mA
Selected Output
value = 0%
0 V / 0mA
Aout Span =
80%
2V / 4mA
P52 Analog Output Offset I/O 14
LCD Display
I/O:Aout Offset
14 0 %
Range 0 – 99% (Default 0%)
Description The analog output signal can be offset using the Analog Output Offset parameter. A 50% offset
outputs a 50% output (5V in the 10V case) when 0% is commanded. If the selected variable requests
100% output, the span should be reduced to (100 minus offset) so that a 100% output request causes a
100% output voltage (x% offset + (100-x)%span)=100%.
NOTE: For a 4-20mA output, set the Analog Output Span to 80% and the Analog Output Offset to
20%.
See Also Analog Output Span parameter on page 75