May, 2013
Page 27 of 52
949-1194 Rev. 7
d F A C
Damping factor, Select
O F F
,
1
to
7
. Sets the ratio of Rate to
Reset for the
S E L F t u n E
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).
P i d
Manually adjust the PID values. PID control consists of three basic
parameters, Proportional Band (Gain), Reset Time (Integral), and Rate
Time (Derivative).
#
P b 1
(Option 948, 4-Stage Set Point)
or
P b 1
Proportional Band (Bandwidth). Select
1
to
9 9 9 9
°F, °C, or
counts.
P b 2
Proportional Band (Bandwidth). Select
1
to
9 9 9 9
°F, °C, or
counts. Appears only if control is equipped with second set
point and
O u t 2
is NOT selected as
O n O F
.
#
r E S
(Option 948, 4-Stage Set Point)
or
r E S
Automatic Reset Time. Select
O F F
,
0 . 1
to
9 9 . 9
minutes. Select
O F F
to switch to
O F S
.
#
O F S
(Option 948, 4-Stage Set Point)
or
O F S
Manual Offset Correction Select
O F F
,
0 . 1
to
9 9 . 9
percent.
Select
O F F
to switch to
r E S
.
#
r t E
(Option 948, 4-Stage Set Point)
or
r t E
Rate Time. Select
O F F
,
0 . 0 1
to
9 9 . 9 9
minutes, Derivative.
S L O
PID values are preset for a slow response process.
n o r
PID values are preset for a normal response process.
F A S t
PID values are preset for a fast response process.
P i d 2
Linkage of PID parameters between SP1 and SP2: Select
O n
or
O F F
.
O n
Applies SP1
r E S
,
r t E
,
F b n d
, and
F r t E
terms to SP2 for heat/cool
applications.
O F F
SP2 functions without
r E S
,
r t E
,
F b n d
and
F r t E
.
A r U P
Anti- Reset Windup Feature: Select
O n
or
O F F
.
O n
When
A r U P
is
O n
the accumulated Reset Offset value will be cleared to
0% when the process input is not within the Proportional Band.
O F F
When
A r U P
is
O F F
, the accumulated Reset Offset Value is retained in
memory when the process input is not within the Proportional Band.
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