Watlow Series 982 - Manual (Page 25)

WATLOW Series 982 User’s Manual
3.1 Keys & Displays, Chapter 3
After 1 minute with no key activations, the control reverts to the Display Loop. The
process value appears in the upper display and the set point is in the lower display.
For more information on the Display Loop, see the next page.
Upper Display
Indicates either actual process value, the operating
prompt values, or error codes. When powering up,
the Process display will be blank for 3 seconds. Red
or green, 0.4” (10mm) high, seven segment, four
digit LED display.
Dev LED
When lit, the deviation from the
current set point is shown in the
lower display.
% Out LED
When lit, the current percent out-
put is shown in the lower display.
Up Key
Increases the value of the dis-
played prompt. A light touch
increases the value by one.
Holding the key down increases
the value at a rapid rate. New
data is self entering in 5 seconds
or once the Mode key or Display
key is pressed.
Down Key
Decreases the value of the dis-
played prompt. A light touch
decreases the value by one.
Holding the key down decreases
the displayed value at a rapid
rate. New data is self entering in
5 seconds or once the Mode key
or Display key is pressed.
Up + Down Keys
When pressed simultaneously for
3 seconds, the Setup (SEt)
prompt appears. Continue to
press the Up/Down keys for
another 3 seconds and the
Factory (Fcty) prompt appears.
Lower Display
Indicates the set point, deviation, percent
power temperature unit, menu prompts, or
alarm codes. Red or green, 0.3” (8mm) high,
seven segment, four digit LED display.
L1, L2, L3, L4
When lit, these LEDs indicate
when Output 1, 2, 3, or 4 are
active respectively. Outputs can
be configured as:
Ot1
Control
Ot2 Control or Alarm
Ot3 Alarm, Event or Retransmit
Ot4 Alarm, Event or Com-
munications (flashes on
transmit and receive.)
Display Key
Pressing this key enters the
Display Loop. The Display key
can be pressed at any time to
return to this loop. For more
information on the Display Loop,
see the next page.
Hold/Run Key
Pressed once, it clears a latched
alarm without altering the
Hold/Run status. To run or halt a
program see Chapter 7 for
details.
Hold/Run LED
Lit when the program is running.
When blinking, press the
Hold/Run key again to begin
running. When not lit, the con-
troller is in fixed set point mode
or single.
TL W WA
PROCESS
L1 L2 L3 L4
DEV
% OUT
DISPLAY
SERIES 982
MODE
HOLD
RUN
Mode Key
Steps the control through
the menus. New data is
entered once the Mode
key is pressed.
Mode + Up Key
To move backwards
through the menus, hold
down the Mode key, then
press the Up key to scroll.
The Mode key must be
pressed first and held
before the Up key will
begin scrolling. Scrolling is
disabled once the keys are
released or you reach the
top of the menu.
Figure 3.1 -
Series 982 Keys
and Displays.
Chapter 3 Front Panel and Display Loop