
3.7 Adjusting Control Operation
E5AK
3--15
The following diagram summarizes manual operation.
OFF
ON
A/M
0
Manipulated variable (%)
Balance-less, bump-less points
Manual
Auto
Time
Manipulated variable
switched
Power inter-
ruption
F
Position-proportional type
·
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. The valve opening is also displayed on the bar graph in 10%
increments.
When a potentiometer is not connected to the controller, [----] is dis-
played on the No.2 display, and nothing is displayed on the bar graph.
Process value
Valve opening
[MANU] LED
Bar graph
Process value
Valve opening
[MANU] LED
Bar graph
Potentiometer connected
Potentiometer not connected
·
When you press the
key, the open side becomes ON. When you press
the
key, the close side becomes ON.
·
Other modes cannot be selected while in the manual mode. To select
other modes, press for 1 second minimum the
A/M
key. The manual mode
is quit.
·
The automatic return of display function does not work while in the
manual mode.
·
You can switch the AUTO/MANUAL function up to 100,000 times.