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User Manual
3200 Series
56 Part No HA028651 Issue 11.0 July-12
11.2
Control Parameters
The control loop is configured by the parameters listed in the following table:-
CONTROL LIST
‘
CTR L
’
Parameter
Name
Parameter Description
(Scrolling Display)
Value
Default
Access
Level
C TR L. H
HEATING TYPE
Selects the channel 1 control
algorithm. Different algorithms may
be selected for channels 1 and 2. In
temperature control applications,
Ch1 is usually the heating channel,
Ch2 is the cooling channel.
Pid
PID As
order
code
Conf
off
Heating off
on.of
On/Off
MTr
Valve position control
C TR L. C
COOLING TYPE
Selects the channel 2 Control
algorithm. Different algorithms may
be selected for channels 1 and 2.
This is not available if the instrument
is a valve position controller
oFF
Cooling disable
As order
code
Conf
pid
PID
on.of
On/Off
C TR L. A
CONTROL ACTION
Selects the direction of the control.
i.e reverse or direct acting.
rev
Reverse acting. Output decreases
as PV increases
rev
Conf
dir
Direct acting. Output increases as
PV decreases
P B . U N T
PROPORTIONAL BAND UNITS
enG
In engineering units
Perc
In percent
A TU N E
AUTO-TUNE ENABLE
OFF
Auto-tune off
OFF
L3
On
Set to ‘on’ to start auto-tuning
FaiL
Displayed if Autotune cannot be
completed
A T. R 2G
AUTOTUNE CONFIGURES R2G
See section 11.4 for an explanation.
YES
R2G will be set by Auto-tune
yes
Conf
No
Allows a value for R2G to be
entered manually
P B
PROPORTIONAL BAND
See also section 11.2.1
0.1 to 9999 display units or
1 to 999.9% if proportional band expressed as %
20
L3
T I
INTEGRAL TIME
See also section 11.2.2
Off
to 9999 seconds
360
sec
L3
TD
DERIVATIVE TIME
See also section 11.2.3
Off
to 9999 seconds
TD
defaults to
OFF
for valve position control
60
sec
L3
R 2G
RELATIVE COOL GAIN
See also section 11.2.4
0.1 to 10.0
1.0
L3
C B H i
CUTBACK HIGH
See also section 11.2.5
Auto
or 1to
3000
display units
Auto
=
3xPb
L3
C B L o
CUTBACK LOW
See also section 11.2.5
Auto
or 1
to
3000
display units
Auto
=
3XPb
L3
M R
MANUAL RESET
0.0 to 100.0% (heat only)
-100.0 to 100.0% (heat/cool)
0.0% L3
LB T
LOOP BREAK TIME
The loop break alarm attempts to
detect loss of restoring action in the
control loop by checking the control
output, the process value and its rate
of change.
Loop break detection works for all
control algorithms: PID, VP and ON-
OFF.
Note: This is not to be confused with
load failure and partial load failure.
Off
Setting loop Break Time to OFF
disables the Loop Break Alarm
OFF
L3
1 to 9999 minutes
Содержание XST-2-0-12-1V1-E28
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Страница 31: ...3216 3208 3204 User Manual 3200 Range Process Controller HA028651 11 Aug 2012 ...
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Страница 173: ...Model 2416 Process Controller User Manual Part No HA025041_12 Date August 2014 ...
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