MANUAL TUNING
P
PI
PID
2xB
2.2xB
1.7xB
0
0.8xT
0.5xT
0
0
0.12xT
If for any reason Auto-tuning gives unsatisfactory results, the controller
can be tuned manually. There are a number of standard methods for
manual tuning. The one described here is the Ziegler-Nichols method.
With the process at its normal running temperature:
Set the
IT
,
DT
and
HYS
parameters in
TUNE
page as
0
.
1-
If
OCR
parameter in page
OCNF
is set to
RL1
, then set the
CT
parameter
2.
2-
Ignore the fact that the temperature may not settle precisely at the
set point.
3-
If the temperature is stable, reduce the proportional band
PB
so that
the temperature just starts to oscillate. If the temperature is already
oscillating, increase the proportional band until it just stops oscillating.
Allow enough time between each adjustment for the loop to stabilize.
Make a note of the proportional band value (B) and the period of
oscillation (T).
4-
Set the
PB
,
IT
and
DT
parameters values according to the calculations
given below.
5-
Type of
Control
Proportional
Band
(
PB
)
Integral
Time
(
IT
)
Derivative
Time
(
DT
)
When the controller power is switched on, it runs through a self-test
sequence for about 2 seconds and displays the version number and
then enters into normal operation.
OPERATOR PAGES
The parameters in the operator page differ according to the
operation mode.
The normal operation state and the frequently used parameters are
in the operator page. These parameters can be accessed by
button.
In normal operation the process value is displayed in the upper
display, the control set point (Automatic mode) or manual output
(Manual mode) is displayed in the lower display.
Pressing the
button for duration of 3 seconds, while in normal
operation, toggles between automatic and manual mode. This
operation is disabled if the
MPL
parameter in page
PRTC
is set to
DSB
or if the
CNTL
parameter in
OCNF
page is set other than
PID
.
SF led indicates the operation mode of the controller. It lights while
controller is in manual mode.
The controller has two basic modes of operation:
- Automatic mode in which the output is automatically adjusted to
maintain the process value at the control set point.
- Manual mode in which one can adjust the output independently of
the control set point.
MANUAL MODE
20.0
0.0
SP
0.0
0.0
A2SP
0.0
A1SP
AUTOMATIC MODE
23.4
0.0
OUT
0.0
0.0
A2SP
0.0
A1SP
Display
Key
/
SPLL
-
SPHL
$99.9
-
999.9
/
$99.9
-
999.9
/
Key Function/
Setting Interval
Process Value
Control Set Point
EU
EU
%
EU
Alarm-1 Set Point
EU
Alarm-2 Set Point
Manual Output
A1tp
OFF
A2tp
OFF
Explanation
Unit
Access
Conditions
Process Value
Alarm-1 Set Point
Alarm-2 Set Point
EU
EU
%
EU
EU
Manual Output
Control Set Point
A1tp
OFF
A2tp
OFF
/
$99.9
-
999.9
/
$99.9
-
999.9
/
oLL
-
oHL
SPLL
-
SPHL
/
Display
Explanation
Unit
Access
Conditions Key
Key Function/
Setting Interval
CONFIGURATION PAGES
Input the Configuration Pages
Normal
Operation
Parameters
COD
0
PAGE
TUNE
Password
$999
-
9999
tUnE, ACNF, OCNF,
GCNF, PRTC, CLBR
Configuration
Pages
TUNE
= PID Tuning Page
ACNF
= Alarm Configuration Page
OCNF
= Control and Output
Configuration Page
GCNF
= General Configuration Page
PRTC
= Security Adjustment Page
CLBR
= Calibration Page
The fundamental characteristics
of the controller are specified in
configuration pages. These pages:
and
buttons are used to select the configuration pages
while
PAGE
message is displayed in the upper display.
button select the parameters in a page sequentially.
button returns to the top of the page if it pressed for duration of
2 seconds, while in configuration pages.
button reverts to normal operation, while in configuration pages.
If the entered security code is correct all the configuration pages
can be accessed and all the parameters in the configuration pages
can be edited. Otherwise
DPL
and
APL
parameters in
PRTC
page
define the access and edit levels of parameters.
The security code is defined by the parameter
SCOD
in
PRTC
page.
The factory setting of the security code is "10".
and
buttons are used to adjust the security code in the
lower display. When
button is pressed
TUNE
page is accessed.
In order to access the configuration pages,
and
buttons
are pressed simultaneously.
After this operation PR led lights and
COD
message and
0
are
displayed in the upper and lower displays respectively.
PID Tuning Page
(
PAGE=TUNE
)
AT
OFF
PB
20.0
28
IT
7
DT
HYS
0.5
Display
(1)
Auto-Tune
Propotional Band
s
Integral Time
Cntl
=
PID
Derivative Time
Hysteresis
EU
EU
Cntl
=
PID
Cntl
=
PID
Cntl
=
PID
s
CNTL
OFF
Explanation
Unit
Access
Conditions
ON
/
OFF
0
-
3600
0.1
-
999.9
0
-
3600
0.0
-
999.9
/
/
/
/
/
Key
Key Function/
Setting Interval
(1) Auto-tune operation is inhibited in manual mode.
Alarm Configuration Page
(
PAGE=ACNF
)
A1tp
OFF
A1HY
0.5
OFF
A1LT
A2tp
OFF
A2HY
0.5
OFF
A2LT
Display
Alarm-1 Type
Alarm-1 Hysteresis
(1)
Alarm-1 Lock
Table
1
Alarm-2 Type
Alarm-2 Hysteresis
(1)
Alarm-2 Lock
EU
EU
Table
1
Cntl
=
OFF
or
OCR
Rl1
A1tp
OFF
A1tp
OFF
A2tp
OFF
A2tp
OFF
Explanation
Unit
Access
Conditions
0.0
-
999.9
Table 1
0.0
-
999.9
Table 1
ON
/
OFF
ON
/
OFF
/
/
/
/
/
/
Key
Key Function/
Setting Interval
(1) Pressing
f
button acknowledges the latched alarms i
A
X
LT
is
ON
while
in normal operation.
Control and Output Configuration Page
(
PAGE=OCNF
)
Display
Explanation
Unit
Access
Conditions
CF
REV
Control Form
CNTL
OFF
DIR
(Direct)
REV
(Reverse)
/
OLL
0.0
Minimum Output
%
Cntl
=
PID
0.0
-
OHL
/
100.0
OHL
Maximum Output
%
Cntl
=
PID
OLL
-
100.0
/
BIAS
50.0
Output Offset Value
%
Cntl
=
PID
0.0
-
100.0
/
CNTL
ONOF
Control Type
Table
2
Table 2
/
OCR
RL1
Output Circuit
Table
3
CNTL
OFF
Table 3
/
2
CT
Control Period
Cntl
=
PID
and
OCR
=
RL1
s
1
-
240
/
0.0
RTLL
Retransmission Low Limit
EU
Cntl
=
OFF
or
OCR
AOC
$99.9
-
999.9
/
RTHL
400.0
Retransmission High Limit
EU
Cntl
=
OFF
or
OCR
AOC
$99.9
-
999.9
/
Key
Key Function/
Setting Interval
MAR
0-20
mA Output Scale
mA
Cntl
=
OFF
or
OCR
=
RL1
/
Table 3
Display
Explanation
Unit
Access
Conditions
Key
Key Function/
Setting Interval
General Configuration Page
(
PAGE=GCNF
)
(4)
Loading Factory Settings
Auto Return Time
s
Set Point Ramping Rate
EU/
min
Set Point High Limit
EU
Set Point Low Limit
EU
Sensor Break Case
Table
5
Input Offset Value
EU
Input Filter Coefficient
EU
(2)
Temperature Unit
INPT
=
TC / RT
Linear Input Scale High Limit
INPT
=
Linear
EU
Linear Input Scale Low Limit
INPT
=
Linear
EU
Input Type
(1)
Decimal Point
INPT
miliamper
OFF
FS
AR
0
SPRR
0.0
999.9
SPHL
SPLL
$99.9
HI
SBR
FLTR
0.5
0.0
INS
UNIT
*C
SPAN
100.0
0.0
ZERO
DP
1
INPT
K
Table
4
Table 4
/
0
-
3
/
$99.9
-
999.9
/
$99.9
-
999.9
/
*C
(°C)
*F
(°F)
/
$99.9
-
999.9
/
0.1
-
10.0
/
Table 5
/
$99.9
-
SPHL
/
SPLL
-
999.9
/
0.0
-
60.0
/
(3)
0
-
25
/
ON
/
OFF
/
(1) When the
DP
parameter is edited, all the parameters with EU unit should
be readjusted.
(4) The factory settings of the parameters are given in "Display" column
(except the
CALB
page). The parameter values in the
CALB
page are the
typical.
(3) The value of
AR
parameter defines the auto return time to normal
operation, if there is no button operation. If it is set the zero, auto return is
disabled.
(2) The EU (Engineering Unit) used in tables, thermocouples and resistance
o
o
thermometer input type units C or F, and for linear inputs types, are the
controlled measurement unit.
EvEN
PRTY
BRTE
4.8
ADRS
25
Parity
Baud Rate
Communication Address
kb/s
Table
7
1
-
127
/
4.8,
9.6,
19.2,
38.4
/
/
Table 7
Security Adjustment Page
(
PAGE=PRTC
)
(1) Factory setting of password is "10".
DPL
4
APL
2
DSB
MPL
CPL
DSB
SCOD
10
ENB
(Enable)
DSB
(Disable)
Table 9
/
/
/
$99.9
-
999.9
/
Parameter Access Level
Table
8
Parameter Edit Level
Manual Mode Select
Calibration Page Access
(1)
Password Set Value
Table
9
Display
Explanation
Unit
Access
Conditions Key
Key Function/
Setting Interval
Table 8
/
ENB
(Enable)
DSB
(Disable)
Calibration Page
(
PAGE=CLBR
)
50.MV
6846
0.DEG
64
6522
390.R
20.MA
6781
AOL
750
3424
AOH
Display
(1)
50 mV Calibration
(2)
Type K 0°C Calibration
(3)
390 Calibration
(4)
20 mA Calibration
Current Output Calibration
(5)
(4 mA)
Current Output Calibration
(6)
(20 mA)
Explanation
Unit
Access
Conditions
Key
/
/
Save
Calibration
Value
600
-
900
3000
-
3800
Key Function/
Setting Interval
The basic calibration of the controller is highly stable
and set in the factory. Any erroneous operation in the
CALB
page will corrupt the calibration parameter, and
measurements will be faulty. The calibration parameters
of the controller can be reinstalled in the
CALB
page.
If accurate calibration devices are not avaible, entering to the
CALB
page is not advised.
Save
Calibration
Value
Save
Calibration
Value
Save
Calibration
Value
(1) Set the calibrator as a milivolt source and adjust the calibrator output
50.000 mV. Apply the calibrator output to the input terminals 9(-) and 10(+)
of the controller. Select this parameter and press
and
buttons
simultaneously to store the parameter.
(2) Set the calibrator to Type K thermocouple and adjust the calibrator
output 0.00 °C. Apply the calibrator output to the input terminals 9(-) and
10(+) of the controller. Select this parameter and press
and
buttons
simultaneously to store the parameter.
(3) Set the calibrator as a resistance source and adjust the calibrator output
390.00 . Short circuit the terminals 9 and 10 of the controller. Apply the
calibrator output to the input terminals 8 and 9 of the controller. Select this
parameter and press
and
buttons simultaneously to store the parameter.
(5) Set the calibrator as a miliamper meter. Connect the output terminals
11(+) and 12(-) of the controller to the calibrator input. Select this parameter
and using
and
buttons adjust the parameter until the calibrator reading
is equal to 4.00 mA. Press
or
button to store the parameter.
(6) Set the calibrator as a miliamper meter. Connect the output terminals
11(+) and 12(-) of the controller to the calibrator input. Select this parameter
and using
and
buttons adjust the parameter until the calibrator reading
is equal to 20.00 mA. Press
or
button to store the parameter.
(4) Set the calibrator as a miliamper source and adjust the calibrator output
20.00 mA. Apply the calibrator output to the input terminals 8(+) and 9(-)
of the controller. Select this parameter and press
and
buttons
simultaneously to store the parameter.
Tablo 1 Alarm Types
LOD
Low Deviation (Relative)
HI
High Alarm (Absolute)
LO
Low Alarm (Absolute)
OFF
Off
HID
High Deviation (Relative)
LOB
Band Alarm (In)
HIB
Band Alarm (Out)
Table 2 Control Types
OFF
ONOF
PID
None
On-Off Control
PID Control
Table 3 Output Circuit
AOC
Analog Output
RL1
Relay 1
Table 4 Input Types
J
K
L
N
R
S
T
U
PT
0A20
4A20
0V50
00V1
00V2
Type J (TC)
Type K (TC)
Type L (TC)
Type N (TC)
Type R (TC)
Type S (TC)
Type T (TC)
Type U (TC)
Pt-100 (RT)
0-20 mA (Linear)
4-20 mA (Linear)
0-50 mV (Linear)
0.0-1.0 V (Linear)
0.2-1.0 V (Linear)
E
Type E (TC)
B
Type B (TC)
Table 5 Sensor Break Case
LO
HI
Lower The Process Value
Higher The Process Value
Tables
Only process value can be
accessed.
0
Process and set value can be
accessed.
Operator page parameters can
be accessed.
TUNE
page parameters can be
accessed.
ACNF
page parameters can be
accessed.
OCNF
page parameters can be
accessed.
GCNF
page parameters can be
accessed.
1
2
3
4
5
6
Table 8 Parameter Access Level
0
Table 9 Parameter Edit Level
None of the parameters can
be edited.
1
2
3
4
5
6
Only set value can be edited.
Operator page parameters can
be edited.
TUNE
page parameters can be
edited.
ACNF
page parameters can be
edited.
GCNF
page parameters can be
edited.
OCNF
page parameters can be
edited.
In Table 8 and Table 9 levels with
arge numerials covers all previous
levels.
Table 6 mA Output Scale
0
-
20
0 - 20 mA
20
-
0
4
-
20
20
-
4
20 - 0 mA
4 - 20 mA
20 - 4 mA
Table 7 Parity
NONE
ODD
None
Odd
EVEN
Even
KY-48-1216-0
Manufacturer / Technical Support:
Elimko Co. Ltd.
8. cadde 21. Sokak No:16 06510 Emek - ANKARA / TURKEY
Phone:+ 90 312 212 64 50 Fax:+ 90 312 212 41 43
www.elimko.com.tr e-mail:[email protected]
