2
April 2015
User Manual
Part Number: 87340-1001, Rev. 0
Display Module
Display Module
The selector knob performs normal selector switch Local/Stop/Remote function and
alternate Next/Back display function in the “MONITOR/SETUP” mode as detailed
in Table 1.
The NEXT and BACK selections are used strictly for cycling through the SETUP displays
to locate the desired display or to exit the “SETUP” mode.
Table 1. LDM Rotating Knobs
Knob Rotation Direction Function Result
Control
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.
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.
Selector STOP
Neutral
Position
Sets up entry, completes NEXT or
BACK entry cycle. See Note below
Clockwise
(REMOTE)
NEXT Advances to the next display
Counterclockwise
(LOCAL)
BACK Returns to the previous display
NOTE:
If the selector knob remains in either NEXT or BACK position, the display will scroll.
1.1.3 LEDs
There are three LEDs on the LDM:
• Red
• Green
• Yellow
The default function of these LEDs is detailed in Table 2.
1.1.4 Normal Display Function
Figure 2 details the display during normal function. The bar graphs, position digits,
icons, and LEDs indicate normal activity, that is, 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 2 details various normal activities and how each is displayed.