Red Lion LEGEND - Manual (Page 10)

KEYPAD FUNCTIONS (Cont’d) FRONT PANEL ACCESSIBLE FUNCTIONS WITH PROGRAM
DISABLE
The Legend has several ways to limit the programming of parameters from
the front panel keypad. There is an Operator Access module, in the
programming loop, that is used with the Program Disable (PGM DIS) DIP
switch and an external programmable User Input. Only one external User
Input can be selected for program disable. The following list describes the
possible program disabling functions.
PGM.DIS.
DIP Switch
Programmed
User Input
Description
OFF Inactive All programming enabled.
OFF Active Operator Accessible Functions Enabled,
Program Loop Disabled.
ON Inactive Operator Accessible Functions Enabled,
Program Loop Disabled.
ON Active Operator Accessible Functions Disabled,
Program Loop Disabled.
Note: If the User Input, set for PGM. DIS., is to be changed to another function,
make sure the User Input is not low (active). If it is low and the mode is
changed, the Program Disable modes will operate as if a PGM. DIS User
Input were active.
-8-
- The Up arrow key scrolls through the indication displays. In the
programming loop, this key can be used to scroll through the main
menus. When programming a numerical value, it increments
(decrements, i.e., goes more positive, for negative values) at the
selected digit position. If the key is pushed and held, the value will
scroll (count up) automatically. After 5 counts, the unit enters fast scroll
mode. If the key remains pushed, a digit shift occurs every one hundred
counts until the maximum value or zero (for negative presets) is
reached. When the digit shift occurs, the previously scrolling digit goes
to zero. When zero is reached (for negative values), the display holds at
zero. To go positive, the key must be released and pushed again.
- The Down arrow key scrolls through the indication displays. In the
programming loop, it scrolls through the main menus and sub menus.
When programming a numerical value, it decrements (increments or
goes more negative, for negative values) at the selected digit position.
If the key is pushed and held, the value will auto scroll (count down
automatically). After 5 counts, the unit enters fast scroll mode. If the
key remains pushed, a digit shift occurs every one hundred counts
until zero is reached. When the digit shift occurs, the previously
scrolling digit goes to zero. When zero is reached, the display holds at
zero. To go negative, the key must be released and pushed again.
- The Enter key enters the programming loop, when “Program Mode” is
displayed from the main display loop. When “Scale Factors” is
displayed, pressing Enter allows access to the scale factors. This key
is also used to save changes to data values. If the data value is a preset
or counter load value, the value is entered and the preset menu is
exited. For all other numeric data values (i.e., Output time, Rate
update times, etc.), the value is entered and the value edit mode is
exited. The value is still viewed in the display, but with no digits
flashing.
- The Select/Right arrow key scrolls right in the main display loop.
When programming a numerical value, it selects the digit to the right.
In a sub-menu loop, it is used to go to the next lower level and
eventually into an edit menu.
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