4. Operation
TEC 2000 Installation & Operation Manual E2K-405-0902
4-3
Table 4-1 LDM Rotating Knobs
NOTE: If the selector knob is held in either NEXT or BACK position, the display will scroll.
4.1.3. LEDs
There are three LEDs on the LDM:
?? Red
?? Green
?? Yellow
The default function of these LEDs is detailed in Table 4-2.
See Section 5.6.2, Valve Control Setup to reverse Red to indicate closed/closing and
Green to indicate opened/opening.
4.1.4. Normal Display Function
Figure 4-3 details the display with all segments and icons turned on. The bar graphs,
position digits, icons, and LEDs indicate normal activity, i.e., the valve opening, closing, or
stopping in mid-travel. The message center remains blank until alarms are active or the valve
is opening, closing, full open, or full close.
Table 4-2 details various normal activities and how each is displayed.
Knob Rotation Direction Function Results
Spring return to center
Neutral
Position
Completes YES or NO entry
cycle. Exception: when knob is
held for continuous data entry
updates.
Clockwise (CLOSE)
YES Accepts the displayed question
or data entry. Advances to the
next display. Exception: when
knob is held for continuous data
entry updates.
Control
Counterclockwise (OPEN)
NO Rejects displayed question or
data.
Increments to the next data
value or display.
Exception: when knob is held for
continuous data entry updates.
STOP
Neutral
Position
Sets up entry, completes NEXT
or BACK entry cycle. See Note
below
Clockwise (REMOTE) NEXT Advances to the next display
Selector
Counterclockwise (LOCAL) BACK Returns to the previous display