3200 Series
Part No HA028651 Issue 7.0 Apr-09 55
11.10
Control Parameters
The following table shows the parameters available.
CONTROL LIST
‘
CTRL
’
Parameter
Name
Parameter Description
(Scrolling Display)
Value
Default
Access
Level
Pid
PID
off
Heating off
on.of
On/Off
C T R 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.
MTr
Valve position control
As order
code
Conf
oFF
Cooling disable
pid
PID
C T R 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
on.of
On/Off
As order
code
Conf
rev
Reverse acting. Output decreases
as PV increases
C T R L . A
CONTROL ACTION
Selects the direction of the control.
i.e reverse or direct acting.
dir
Direct acting. Output increases as
PV decreases
rev
Conf
enG
In engineering units
P B . U N T
PROPORTIONAL BAND UNITS
Perc
In percent
OFF
Auto-tune off
A T U N E
AUTO-TUNE ENABLE
On
Set to ‘on’ to start auto-tuning
OFF
L3
YES
R2G will be set by Auto-tune
A T . R 2 G
AUTOTUNE CONFIGURES R2G
See section 11.11 for an explanation.
No
Allows a value for R2G to be
entered manually
yes
Conf
P B
PROPORTIONAL BAND
0.1 t
o
9999 display units or
1 to 999.9% if proportional band expressed as %
20
L3
T I
INTEGRAL TIME
Off
to 9999 seconds
360
sec
L3
T D
DERIVATIVE TIME
Off
to 9999 seconds
TD
defaults to
OFF
for valve position control
60
sec
L3
R 2 G
RELATIVE COOL GAIN
See also section 11.4
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
Off
Setting loop Break Time to OFF
disables the Loop Break Alarm
L B 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.
1 to 9999 minutes
OFF
L3
O P . H I
OUTPUT HIGH
Adjust to limit the maximum heating
power applied to the process
+100.0%
100.0% L3