Siemens SIMATIC Series Getting Started page 37

Error displays on the front panel
Front LED
Red WATCHDOG LED is lit
Red TEMP LED is lit
Red FAN LED is lit
Red HDD1 ALARM LED is lit
Red HDD2 ALARM LED is lit
Red HDD1 ALARM and HDD2
ALARM LEDs are flashing
Red HDD1 ALARM and HDD2
ALARM LEDs are lit
Red SF PROFINET LED is lit
All front-panel LEDs are
constantly lit
SIMATIC IPC847C
Getting Started, 12/2010, A5E02669190-02
Possible cause
Watchdog has triggered
Excess temperature in the device
Fan failure
RAID reports that hard disk 1 is
defective
RAID reports that hard disk 2 is
defective
RAID is in the "rebuild" state
RAID system is not ready for
operation: Affected drive must be
determined with the help of the
RAID software.
A fault has occurred on the CPU
1616 onboard interface
Error in early BIOS-POS
For details about the error display, see the operating
instructions:
Section "Watchdog (WD)"
Section "Temperature monitoring / display
Section "Fan monitoring"
Section "RAID monitoring"
Section "RAID monitoring"
Section "RAID monitoring"
Section "RAID monitoring"
Section "CP 1616 onboard communications
processor"
In this case, contact Technical Support.
Troubleshooting
7.1 General problems
37