EMKO esm-4450 - Page 80

This parameter is added to the %process output that is calculated at
the end of the PID according to process set value.
* / ( - )
If = 500°C , = 1000 , = 0 , = 5.0
* / ( - ) = 5.0 * 500 /(1000-0) = 2.5
2.5% is added to calculated process value.
Example: °C %
then %
80
(FOR HEATING PID 0.0 , 100.0 )
(FOR COOLING PID -100.0 , 0.0 )
(FOR HEATING-COOLING PID -100.0 , 100.0 )
% %
% %
% %
This parameter is added to “Output %” which is calculated at the end of
the PID.
500
PoFS=5.0%
PoFS=-5.0%
Process
Output
100%
50%
0%
Process
Value
5%
5%
PID OUTPUT OFFSET
OUTPUT OFFSET RELATED TO PID SET
500
Process
Output
withOffset
Process
Output
100
%
50%
0%
Process
Value
2.5%
(FOR HEATING PID 0.0 , 100.0 )
(FOR COOLING PID -100.0 , 0.0 )
(FORHEATING-COOLINGPID-100.0 ,100.0 )
% %
% %
% %
OR
OR
IS
SELECTED
OR
IF