Marathon Computer UNIPRO V3.5 - Manual (Page 195)

MMI Product Documentation
Unipro 3.5 Process Control 1 Aug. 1997
Glossary
Load Line
Load line (LdLn) is a
manual offset to the control
output (manual reset). The
load line can be set from 0
to 100%. Load line must be
set to zero when using
ON/OFF control.
ON/OFF control
In ON/OFF control Output
l is turned ON whenever
the percent output exceeds
l0% and Output 2 is turned
ON whenever the percent
output goes below -l0%.
Therefore the proportional
band is used to set the
deadband. If the
proportional band is set at
5% then an error of 5 will
produce a l0% output;
therefore, the deadband is
5. Reset and Rate would
normally be set to zero;
however, experimentation
could improve the control
response. Load Line must
be set to zero.
Position with Feedback