![Shimaden SR253 Series Скачать руководство пользователя страница 41](http://html1.mh-extra.com/html/shimaden/sr253-series/sr253-series_instruction-manual_1256885041.webp)
6-8.
Control group (Group 1)
Press the key to call the CONTROL screen (Group 1-0). Then, press the key to move to a screen in which a setting or a
change is to be made. Use the key to select a parameter on the screen.
1) Execution/stop of auto tuning (AT) (Group 1-1)
This parameter is used to execute or stop auto tuning (AT).
Conditions for execution (common to front key input and external input)
(1) Ramp control is not in execution.
(2) MANUAL is not on.
(3) P=0 (ON-OFF control) has not been selected.
(4) STANBY is not on.
(5) Remote SV is not in use.
(6) PV value is not over Scale.
Note 1: As output limits affect AT execution, lower limit and higher limit values of control output should be set in 6-6. 8) Setting of output
limit before executing AT.
Note 2: Only control output 1 executes AT when DA characteristic (two-stage heating) has been selected in the two output type.
(Control output 2 executes AT at 0% or with lower limit output limiter left as it is.)
Note 3 During execution of AT, AT lamp in the front panel flashes and the lamp goes out upon termination or stop of AT.
Note 4: Auto tuning stops when
(1) Scale Over occurs.
(2) power goes off.
(3) time of ON or OFF exceeds about 200 minutes.
(4) STANBY is selected.
(5) Exe1 or Exe2 of initialization is executed.
- 37 -
SVNo.
01
DEV
-3.5%
25.000
°
C
-5
0
+5
0-0
Control screen group.
CONTROL
1-0
Auto Tuning: STOP
AT Point: 0.000
°
C
1-1
Control A/M: AUTO
Control Exe: EXEC
Ramping Run: STOP
Operation : LOCAL
1-2
SCRN
SCRN
SCRN
GRP
G R P
SCRN
Setting range: STOP, EXEC
Initial value: STOP
Auto Tuning: STOP
AT Point: 0.000
°
C
What is auto tuning (AT)?
Optimum PID constants are automatically calculated by the limit cycle method and control is carried out by using
such values.
Содержание SR253 Series
Страница 63: ...59...