Display and Control Elements
7–8
1070 073 825-103 (02.04) GB
7.3
LED Indicators
7.3.1
Hardware Indicators
The PC system is provided with 5 LEDs for indications on hardware. In the
case of the CPS21_4 the LEDs are not labeled. The assignments are the
same as for the CPS21_3 (see illustration).
5 LED indicators
Please take appropiate measures if one of the following LEDs indicates an
error or a message:
LED
Display
Meaning
Measures
V
in
LED green
Standard operation
–
LED off
No supply voltage 24 VDC
Check the supply vol-
tage at the power sup-
ply unit!
VOut
LED green
Standard operation
–
LED off
Internal v5V / +12V not
available
Check the supply vol-
tage at the power sup-
ply unit!
HD
LED yellow
Access to hard disk
–
Temp
LED off
Standard operation
–
LED flashes
red
Internal housing temperature
exceeds > 50
°
C. Shutdown
will occur if temperature conti-
nues to rise.
Lower ambient tempe-
rature!
Check fan of PC!
UPS
LED off
Standard operation
–
LED red
CPS21 currently running on
battery power, i.e. no mains
power available!
Restore mains power,
initiate a controlled
CPS21 restart!
LED flashes
red
Discharged or defective re-
chargeable battery, or battery
not connected.
Check battery!
Observe 5 hour re-
charging time!
Summary of Contents for CPS21_3
Page 1: ...Antriebs und Steuerungstechnik CPS21_3 CPS21_4 Interface Conditions Industrial PC Edition 103 ...
Page 90: ...Display and Control Elements 7 18 1070 073 825 103 02 04 GB Notes ...
Page 100: ...Maintenance and Replacements 8 10 1070 073 825 103 02 04 GB Notes ...
Page 102: ...Spare Parts 9 2 1070 073 825 103 02 04 GB Notes ...