Man-Machine Interface; Display And Keyboard - EFD MINAC 25 Twin User Manual

MINAC Systems
USER MANUAL
63860.doc
5

MAN-MACHINE INTERFACE

5.1

Display and Keyboard

The display and keyboard together form the frequency converter's Man-Machine
Interface (MMI) and are located on the operating panel. A number of different menus
are available to the operator.
The starting point for access to these menus is the Main Menu (menu 1), which gives
an overview of the menus available.
Six of the menus are active. This means that the operator can enter different
variables/options such as control mode, time, sequence, setpoint, water shut-off,
extended operating range etc. These settings can be entered only in the "power off"
mode.
Four passive menus provide operational information. The operator can switch
between the different menus by using the function keys on the keyboard. If the unit is
a Twin model, it has one extra passive menu accessible to give information for both
outputs at the same time.
Additionally, there are two menus for the PIN code.
A. Display Sections:
The top row of the screen is divided into three areas. The left area displays the menu
identifier number, the center area displays the menu name, and the right area
indicates the returning key. When the PIN code is active, a "padlock" symbol is
displayed in the upper right corner.
The center part of the screen shows the contents of the selected menu. This display
can show a bar graph of relevant internal analog signals, timer or sequence data or
operator selectable values. The menu displays also contain explanatory text for the
different displays.
The bottom line or footer message shows operational and alarm messages from the
left.
If the unit is a Twin model, a square in the lower right corner shows which one of the
two outputs is displayed on the screen.
© For reproduction rights, see cover page.
Revision A
31 January 2005
Page 7