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Page 23
tunE Tuning Choice: Select SELF, Pid, SLO, nor, or FASt.
SELF The Controller will evaluate the Process and select the PID
values to maintain good control. Active for SP1 only.
LErn Select YES or no
YES Start Learning the Process. After the
process has been learned the menu item
will revert to no.
no Learning will stay in present mode.
dFAC Damping factor, Select OFF, 1to 7. Sets the ratio
of Rate to Reset for the SELF tunE mode. 7= most
Rate. Factory set to 3. For a fast response process
the value should be lowered (less Rate). For a
slower process the value should be increased
(more Rate).
Pid Manually adjust the PID values. PID control consists of three basic
parameters, Proportional Band (Gain), Reset Time (Integral), and
Rate Time (Derivative).
Pb1 Proportional Band (Bandwidth). Select 1to 9999 °F, °C,
or counts.
Pb2 Proportional Band (Bandwidth). Select 1to 9999 °F, °C, or
counts. Appears only if control is equipped with second set
point and Out2 is NOT selected as ONOF.
rES Automatic Reset Time. Select OFF, 0.1 to 99.9 minutes.
Select OFF to switch to OFS.
OFS Manual Offset Correction Select OFF, 0.1 to 99.9%. Select
OFF to switch to rES.
rtE Rate Time. Select OFF, 0.01 to 99.99 minutes, Derivative.
SLO PID values are preset for a slow response process.
nor PID values are preset for a normal response process.
FASt PID values are preset for a fast response process.
Pid2 Linkage of PID parameters between SP1 and SP2: Select On or OFF.
On Applies SP1 rEs, rtE, Fbnd, and FrtE terms to SP2 for
heat/cool applications.
OFF SP2 functions without rEs, rtE, Fbnd and FrtE.
Does not appear if not equipped with second output or if second
output is programmed as alarm.
ArUP Anti- Reset Windup Feature: Select On or OFF.
On When ArUP is On the accumulated Reset Offset value will be
cleared to 0% when the process input is not within the Proportional
Band.
OFF When ArUP is OFF, the accumulated Reset Offset Value is retained
in memory when the process input is not within the Proportional
Band.
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