– 10 –
6-11
Password Setup (Ch11)
Sets the password. Passwords can be set at three levels.
6-12
Display (Ch12)
Sets the parameter mask function Optional parameters can be set not to display.
For details on the parameter mask function, refer to the "Operation Manual".
Note 1: Displayed when the seventh digit of the model code is H, K, F, 2 or E, or the eleventh
digit is D.
Note 2: Displayed when the ninth digit of the model code is not 0, or the
eleventh digit is C.
Note 3: Display changes according to the DO number and the selected alarm type.
Note 4:
Displayed when the fifth digit of the model code is not V or S and the sixth digit is A,
C, E or P.
Note 5: “
SvL
” and “
Svh
” must be set so that SvL < Svh.
When the setting values of “
SvL
” and “
Svh
” are changed, check SV setting value 1
(“
Sv1 Ch3
”) through SV setting value 7 (“
Sv7 Ch3
”).
Note 6:
Set the same value as the one for the Normal/Reverse setting (“
rEv Ch2
”).
Note 7:
Displayed when the fifth digit of the model code is A or C.
Note 8: Displayed when the fifth digit of the model code is V.
Note 9: Displayed when the fifth digit of the model code is E or P.
Note 10: Displayed when the seventh digit of the model code is G or J, or when the eleventh
digit is A.
Note 11: The number of parameters to be displayed varies depending on the number of DIs
that PXG has.
For more details on “41: DI soft start”, refer to the “Operation Manual”.
Note 12: Displayed when the sixth digit of the model code is R or S.
Note 13: The parameter uses this even if the terminal uses CT2 input.
Note 14: Select the proper setup range for the output type.
Note 15: Do not set 4 to 7.
Note 16: Displayed when the fifth digit of the model code is V or S.
Note 17: Displayed when the seventh digit of the model code is M, V, K, J, F or U.
Note 18: Displayed when the sixth digit of the model code is E or P.
Note 19: When the fifth digit of the model code is S or V, be sure to select PID control. Options
other than PID control cannot be used.
Note 20: When changing the SV with the front key, do not change the “
Svn
” parameter via
communication.Otherwise, the changed SV may not be stored correctly.
Note 21: Do not change this parameter during the ramp soak operation.
Be sure to set “
PrG
” = “
oFF
” before changing the parameter.
7
Functions
This controller has five types of temperature control functions and three types of valve control
functions. Select according to type and use.
●
Temperature Control Functions
●
Valve Control Functions
7-1
ON/OFF (2-position) Control
Acts as an ON/OFF control when the PID parameter is set to "
P
" = 0.0 ("
Pid Ch 2
").
ON/OFF control switches the control output to ON (100%) or OFF (0%) according to the size rela-
tionship of PV and SV.The output hysteresis can be set under the parameter "
hYS
" ("
Pid Ch 2
").
Reverse Operation (heat control)
Method used to control the electrical heating furnace."Set the
hYS
" to an appropriate value
according to the control target.
Normal Operation (cooling control)
Method used to control the cooling machine.
7-2
PID Controls
PID controls run as long as the parameter is set to "
P
"
≠
0.0 ("
Pid Ch 2
") and "
CTrL
" = PID ("
SYS
CH 7
"). The PID controls calculate PID based on the set values for parameters "
P
", "
i
", "
d
", and
"
Ar
", and output the calculated result (-3% to 103%).
Each parameter can be set either by manually tuning the values or by running auto-tuning (AT)
to automatically set the values.
Setting PID Control
7-3
Fuzzy PID Control
Related to normal PID controls, fuzzy PID control acts with small overshoot.
You will need to run auto-tuning to set the PID parameter when using fuzzy control.
Setting fuzzy PID control
Display
Parameter name
Function
Setting range
Initial
value
Remarks
"
PAS1
" (PAS1)
Password1 setup
Sets password 1.
0000 to FFFF
0000
"
PAS2
" (PAS2)
Password2 setup
Sets password 2.
0000 to FFFF
0000
"
PAS3
" (PAS3)
Password3 setup
Sets password 3.
0000 to FFFF
0000
Display
Parameter name
Function
Setting range
Initial
value
Remarks
"
dP01
" (dP01)
Parameter mask of
each parameter
Sets the
parameters to be
displayed/not
displayed.
0000 to FFFF
Value
different
depending
on the
model
code
"
dP30
" (dP30)
Parameter mask of
each parameter
Sets the
parameters to be
displayed/not
displayed.
0000 to FFFF
Value
different
depending
on the
model
code
Caution
The ramp soak function (
page 12), remote SV function (
page 15), and
SV selection function (
page 16) cannot be combined.
ON/OFF (2-position)
control
Turns the control output ON/OFF according to the size
relationship of PV and SV Can build a control system
out of simple elements such as SSR. Suitable when
accuracy is not requested.
7-1
(page 10)
PID Controls
PID calculation and controls proceed according to the
previously set PID parameters.
PID parameters can be set manually or through auto-
tuning (AT).
It is the most basic control in this equipment.
7-2
(page 10)
Fuzzy PID Control
PID control with function that reduces the amount of
overshoot during control. It is effective when you want
to suppress overshoot when SV is changed, even if you
may take a long time to reach the target value.
7-3
(page 10)
Self-tuning Control
Automatically calculating PID control according to the
control target or SV change. It is effective when the
control conditions change frequently.
7-4
(page 11)
PID2 Control
In case which the power supply of the control target
goes ON
→
OFF
→
ON, this PID2 control can suppress
the amount of overshoot during control target turns OFF
→
ON.
7-5
(page 11)
…
…
…
…
…
…
Servo Control 1
(Servo 1)
Regulates the valve position according to [OPEN] and
[CLOSE] of the contact output.
7-7
(page 11)
Servo Control 2
(Servo 2)
Regulates the valve position according to [OPEN] and
[CLOSE] of the contact output.It can also display the
valve ís degree of openness according to the position
position signal from the valve. However, it cannot be
used to calculate the control output.
7-7
(page 11)
Position Feedback
(PFB Control)
Controls the valve according to a calculation performed
on the opening signal.Regulates the valve position
according to [OPEN] and [CLOSE] of the contact
output.
It can be used when there is an opening signal coming
from the valve.
7-8
(page 12)
Parameter
Set Value
"
P
"
0.0
"
rEv
rv--
"
hYS
"
arbitary (factory
setting: 1 °C)
Parameter
Set Value
"
P
"
0.0
"
rEv
no--
"
hYS
"
arbitary (factory
setting: 1 °C)
Point
During ON/OFF control, the I and D settings do not affect control.
The manual operation during ON/OFF control will become MV=100%
when the
key is pressed, and MV=0% when the
key is pressed.
If the hysteresis width is narrow, and PV and SV are nearly equal, the
output may frequently switch ON and OFF. Note that it may affect the
operation life of the contact output.
Refer to
For more details on auto-tuning, see "7-6 Auto-tuning" (page 11)
1
Display the system menu ("
SYS Ch 7
").
2
Display the control parameter ("
CTrL
") and choose PID controls ("
Pid
").
3
Press the
key to set the value.
1
Display the system menu ("
SYS [h 7
").
2
Display the controller parameter ("
[trL
") and choose fuzzy ("
FUZY
").
3
Press the
key to set the value.
Refer to
For more details on auto-tuning, see "7-6 Auto-tuning" (page 11)
PV
ON
OFF
control output
t
SV
process value
PV<SV
PV>SV
HYS
PV<SV
PV>SV
PV
ON
OFF
control output
t
SV
process value
HYS
