Siemens SIMATIC IPC847D, Operating Instructions Manual

Page: 196 / 222

Technical support
A.2 Troubleshooting
SIMATIC IPC847D
196
Operating Instructions, 01/2014, A5E32997454-AA
Error displays on the front panel
Front LED Possible cause Details about the error display
Red WATCHDOG LED is lit Watchdog has triggered See section "Watchdog (WD)"
Red TEMP LED is lit Excess temperature in the device See section "Temperature monitoring/display"
Red FAN LED is lit Fan failure See section "Fan monitoring"
Red HDD0 ALARM LED is lit RAID reports that hard disk 0 is
defective
See section "Status displays"
Red HDD1 ALARM LED is lit RAID reports that hard disk 1 is
defective
See section "Status displays"
Red HDD2 ALARM LED is lit RAID reports that hard disk 2 is
defective
See section "Status displays"
HDD | HDD3 ALARM is lit in
red or flashes green
RAID reports that hard disk 3 is
defective
See section "Status displays"
HDD0, HDD1, HDD2 ALARM
and HDD | HDD3 ALARM
flash red
RAID is in the "rebuild" state See section "Status displays"
HDD0, HDD1, HDD2 ALARM
and HDD | HDD3 ALARM is lit
in red
RAID system is not ready for
operation:
Affected drive must be identified with the help of the
RAID software. See section "Expanding and
assigning parameters to the device", section "Drives"
and section "Managing RAID systems".
PN Ι MPI/DP lights up red A fault has occurred on the CPU
1616 onboard interface
See section "Status displays"
All front-panel LEDs are
constantly lit
Error in early BIOS-POST Contact Technical Support.
Redundant power supply
Problem Possible cause Possible remedy
Device failure
despite redundant
power supply in
case of power
failure
•
One module is not switched on
•
Both modules are connected
so the same AC circuit
•
Switch on both modules
•
Connect modules to separate AC circuits