beled LEDs or illuminated symbols. The meaning of the display elements and ac-
tions in the event of failures are listed in the following table.
Symbol or LED
Display
Meaning
Action
Von
LED green on
Normal operation
–
LED green off
No supply voltage of 24 V DC Check the supply voltage at
the power supply unit!
HDD
LED yellow
Hard disk access
–
Temp
LED off
Temperature in safe range
–
LED flashes red
Temperature > 50 °C
Reduce the ambient tempera-
ture!
If necessary, connect the fan!
UPS
LED off
Normal operation
–
LED red
The device is currently ope-
rating in battery mode, i. e. no
power supply is available!
Restore the supply voltage,
initiate a controlled restart of
the control cabinet PC!
LED flashes red
The battery pack is dis-
charged, defective or not con-
nected.
Check battery!
Tab. 12-2: LEDs for operating and error display on the front panel
Damage of to keys due to operation with poin-
ted objects.
NOTICE
Operate the keys only with your fingers.
12.2.2 Display resolution
The resolution is set upon delivery. It depends on the device and is not to be
changed by the user.
12.2.3 Light-emitting diodes at the PC box
Next to the XS1 voltage supply plug, there are three light-emitting diodes (LEDs)
at the PC box. The LED states are individually described in the following table.
LED
Color
Function
H1
Green
Supply voltage is OK
H2
1)
Yellow
Application-dependent
H3
1)
Red
Application-dependent
1)
"H2" and "H3" LEDs are only available for the "Advanced" variants
Tab. 12-3: LEDs on the PC box
The LEDs H2 and H3 can be controlled by the respective application.
Embedded Terminals with Profibus DP
Master
Bosch Rexroth AG
Device description
DOK-CONTRL-VEP*XX.5***-IT01-EN-P
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