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SITRANS LC500 – OPERATING INSTRUCTIONS
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User Int
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The rotary switch
The rotary switch gives you access first to the menu level and then to the menu item.
The rotary switch has a small slot where the current position can
be read. The positions are read clockwise, and in increasing order:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. The position wraps from F
to 0.
The switch can be turned in either direction. When it is turned to a
new position, the LCD displays the new menu selection for 1
second, followed by the data for that position.
Certain menu selections return more than one piece of information
per item: in that case the display alternates between the two
values, for example, PV Value / Fault status.
The push-buttons
The push-buttons allow you to change the value of a menu item. Use the RED (+) button to
adjust a value up; the BLUE (–) button to adjust a value down; or press both
simultaneously for special applications. For a table showing the combinations of rotary
switch positions and button presses used to carry out different functions, see page 41.
Access to a menu item:
1.
First select Menu LEVEL 0 or Menu LEVEL 1.
2.
Turn the rotary switch to the number of the desired item.
Adjusting the value
1.
Select a menu item.
2.
Press the RED (+) or BLUE (–) push button to adjust the value up or down:
acceptance is indicated when the left-most colon on the LCD appears. (You have to
press longer than the debounce time to have the action accepted: the debounce
time varies according to the menu item selected.)
Notes:
•
For a detailed description of each menu item, see Appendix A, page 55: the
functions of each menu item are illustrated in application examples on page 102
to 103.
•
Change over from Menu LEVEL 0 to Menu LEVEL 1 is only possible at position 0,
from menu item 00 to 10 or vice-versa. (See page 42 for detailed instructions.)
Notes:
•
The push buttons are preset with a delay called the debounce time.
•
Keeping one or both buttons pressed continuously will trigger an auto-repeat in
some menus.
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