Watlow Series 982 - Manual (Page 26)

3.2 WATLOW Series 982 User’s Manual
Keys & Displays, Chapter 3
Display Loop
Display Loop
The Display Loop is the “home” state of the Series 982 controller. Pressing
the Display key ∂ returns the controller to the Display Loop from any
prompt in any menu. The controller automatically returns to the Display
Loop from any menu when a minute passes without any keys being
pressed.
Figure 3.2 -
The Display Loop.
DISPLAY
units selected (units, °F or °C)
set point 1 (change with Up-arrow and Down-arrow keys)
input 2 process (appears only if controller equipped with slidewire option)
deviation from set point, process 1 minus set point 1 (DEV light on)
percent output (%OUT light on)
DISPLAY
current input 1 reading
current slidewire percent reading
current input 1 reading
current input 1 reading
current input 1 reading
DISPLAY
DISPLAY
DISPLAY
DISPLAY
˜
NOTE:
If [``no] is selected
for [`In2], in the
Input Menu, the
[Pr`2] prompt will
not appear.
˜
NOTE:
For information on
Input 1 [`In1] and
Input 2 [`In2]
ranges, refer to
Chapter 4.
Single Set Point
When a program is not running, you can adjust the set point, shown in
the lower display, by pressing the Up-arrow or Down-arrow key or through
serial communications. You can de-engergize all outputs, including event
outputs, by lowering set point 1 to the range low setting minus one, which
will display [`OFF] in the lower display.
Ramping
When a program is running, the set point is controlled by the program.
You can view this set point, but cannot change it while the program is
running. You can select the event output status for each step.