Ldu Keypad - ABB REG316 4 Series Operating Instructions Manual

REG 316*4 1MRB520049-Uen / Rev. E
5.13.3.5.

LDU keypad

The LDU keypad comprises six pushbuttons which are only ever
pressed one at a time to perform the various control functions.
Pressing a second button has no effect as long as the first button
remains pressed. The function of the second button is only exe-
cuted after the first one has been released.
There are two ways of navigating within the menu structure:
· Step-by-step: A button is pressed to perform a first operation
and then a second button to perform the next operation and
so on.
· Holding a button depressed: An operation can be repeated by
holding the corresponding button depressed longer than the
normal response time (fixed setting of 0.5 seconds).
The pushbuttons perform the following functions:
"E"
executes an operation (ENTER function), i.e. a menu item is
executed which in the case of the LDU means moving down
a level in the menu structure. The button has no function on
the lowest level in the menu structure.
"C"
corresponds to the ESCAPE button on a PC. It is used to
close an active menu. It returns the user from every menu
item to the entry menu.
"­", "¯"
The upwards and downwards arrow keys are used either for
selecting a desired menu item at the same level in the menu
structure or for selecting a value to be viewed in the active
menu (e.g. different events in the event list). These keys are
represented in the text by the symbols "
"®"
The right arrow key performs the same function as the "E"
button. It is represented in the text by the symbol ">".
"¬"
The left arrow key closes the active menu and returns the
user to the next level up in the menu structure. It is repre-
sented in the text by the symbol "<".
ABB Switzerland Ltd
^
" and "v".
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