Sauter flexotron®800
ventilation
Display, LEDs and buttons
P100012082
56
7
Display, LEDs and buttons
This section is applicable to controller flexotron®800 units with display and buttons but
also for external displays RDB800 which can be connected to flexotron®800 units
without display and buttons.
7.1
Display
The display has four rows of 20 characters and is backlit. The illumination is normally
off, but is activated as soon as a button is pressed. The illumination will be turned off
again after a period of inactivity.
7.2
LEDs
There are two LEDs on the front: The alarm LED marked with the
symbol. The
‘‘write enable’’ LED marked with the
symbol.
The four LEDs placed next to the upper terminal strip will be described later.
7.3
Buttons
There are seven buttons: four arrow buttons which will be called Up, Down, Right and
Left. The menus in the flexotron®800 are organized in a horizontal tree structure. The
Up and Down buttons are used to move between menus at the present menu level. The
Right and Left buttons are used to move between menu levels. When changing
parameters the Up and Down buttons are used to increase/decrease the value of the
parameter and the Right and Left buttons to move between digits within the parameter.
The OK button is used to confirm the choice of a parameter setting. See more
in the section "Change parameters" below.
The C button is used to abort an initiated parameter change and restore the
original value.
The ALARM button, marked with a red button top, is used to access the alarm
list.
7.4
Navigating the menus
The choice of access level/user access determines which menus are shown in the
menu system.
The start display, the display normally shown, is at the root of the menu tree.
flexotron® 800
2013-01-20 13:30
System: Running
Sp: 18.0 Act: 18.2°C