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WTC 600 LP / MP APPENDIX
Service Handbook 08.2004
4.2 Basic elements
The whole user surface of the control system is composed by basis functions such as
password entry, menu selection, selection of settings, numerical entries etc. The description of
the basic functions will be followed by the operating elements of the menus for users/
techniciens.
4.2.1 Password entry
The entry of the password is the only way to gain access from the normal level to the user/
technician level. User and technician have different passwords.
For user's password entry, the following keys have to be actuated in the normal level, within
one minute.
For technician's password entry, the following keys have to be actuated in the normal level,
within one minute.
ESC ESC
For technician's password entry, the following keys have to be actuated in the normal level,
within one minute.
4.2.2 Selection of menu
A menu is used to select or call specific functions. It consists of several numerical menu points
(lines) listed one below the other. The text display of the control system always shows two of
these menu lines, that means it always displays a two-line section (window) of the whole menu.
If a function or a menu point has to be called in, the desired menu point has to be selected first
using the / keys. If the menu consists of more than two lines, the displayed section is
automatically displaced within the whole menu (scrolled), the selected menu point being marked
with arrows at the left and right sides of the display (e.g. ">9 settings<").
This selected menu point is called-in with the . key.
A menu is finished with the ESC key (return to normal level). At certain program points (settings,
calibrations, uncommitted input) nested menus appear. That means that the selection of a menu
point starts a further menu (sub-menu). In that case, the ESC key causes return to the
preceding menu.
4.2.3 Selection
The selection serves to chose one out of different options (usually operating settings). When a
selection is called in (e.g. via a menu) the name of the selection appears in the upper display line
(operating settings), the lower line displays the current status (value). With the / keys all
further options can then be displayed. As soon as the key is pressed, the currently displayed
option is then accepted (stored) as new operating setting.
A selection can be interrupted with the ESC key without having carried out any modification.