To prevent sudden changes in the manipulated variable when switching between
manual and auto operation, operation is resumed using the value that was active
immediately before operation was switched, and the value is brought gradually
closer to the value immediately after operation was switched.
Balance-less,
Bump-less Opera-
tion
CHAPTER 3 BASIC OPERATION
E5EK
3--24
•
On a standard type controller, the manipulated variable is controlled,
and on a position-proportional type controller, the valve opening is
controlled.
•
To set manual operation and manually set the manipulated variable
or the valve opening, press the
key and
key simultaneously
for 1 second minimum. Then the controllers enters the manual mode.
To quit the manual mode, press the
key and
key again simul-
taneously for 1 second minimum. The controller enters the level 0
mode without entering the menu display.
•
Though the control shifts to manual operation if the controller is set
to the manual mode during program operation, the program ad-
vances. When program operation is started in the manual mode, pro-
gram also advances.
•
In the manual mode, the automatic return of display mode does not
work.
•
The process value is displayed on the No.1 display, and the manipu-
lated variable is displayed on the No.2 display.
•
To change the manipulated variable, press the
or
keys. After
two seconds, the manipulated variable is updated to the new setting.
•
When switching between manual and auto operation, the manipu-
lated variable is subject to balance-less, bump-less operation.
•
If the power is interrupted during manual operation, manual opera-
tion is resumed at the manipulated variable that was active at power
interruption when the power is reset.
0
Manipulated variable (%)
Balance-less,
bump-less points
Manual
Auto
Manipulated vari-
able switched
OFF
ON
Time
+
+
Power inter-
ruption
•
When a potentiometer is connected to the controller, the process value
is displayed on the No.1 display, and the valve opening is displayed on
the No.2 display.
•
When you press the
key, the open side becomes ON. When you
press the
key, the close side becomes ON.
J
Manual operation
F
Standard type
F
Position-propor-
tional type
Содержание E5EK
Страница 1: ...User s Manual Cat No H089 E1 02 Digital Controller Programmable Type...
Страница 24: ...CHAPTER 1 INTRODUCTION 1 14...
Страница 36: ...CHAPTER 2 PREPARATIONS 2 12...
Страница 162: ...CHAPTER 6 USING THE COMMUNICATIONS FUNCTION 6 20...
Страница 176: ...CHAPTER 7 CALIBRATION 7 14...
Страница 193: ...SETTING LIST A 11...