4 Operation
4.1 LOP – Controls
LOP – Controls
Item
Color
Inscription
Meaning / Function
1
White
F1
Function keys to control the man-machine inter‐
face. Functions vary and are displayed on the
LCD screen.
2
White
F2
3
White
F3
4
White
F4
5
White
F5
6
White
ALARM ACKNOWL
Pressing the button the first time stops alarm sig‐
nalization.
Pressing the button a second time acknowledges
an active alarm.
LED (spot) lights up when an alarm is active.
7
White
DIM ↑
Holding down the button increases LCD back‐
ground illumination.
86 | Operation | MW15412/05E 2011-11
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