Huawei FusionModule800 Maintenance Manual page 33

FusionModule800 Smart Small Data Center
Maintenance Guide
Symptom
The Alarm indicator (red) is
steady on.
Table 4-4 Common faults and troubleshooting for the monitoring module
No.
1
2
3
Issue 02 (2016-11-15)
Symptom
The Run indicator (green)
is off.
RJ45 power output
indicators turn off
(involved ports:
AI/DI1–AI/DI6,
COM1–COM4, and
DO1–DO2).
The ALM indicator (red)
is steady on.
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Possible Cause
Output overvoltage
protection
No output due to a PSU
fault
Possible Cause
There is no AC input.
The monitoring module is
faulty or not securely
installed.
The corresponding power
ports have no output.
The corresponding power
ports are short-circuited.
Faults and alarms are
generated.
4 Troubleshooting
Measure

If a single PSU is locked
out, disconnect the AC
input from the PSU, and
then power on the PSU
again after the indicator
turns off. If the fault
persists, replace the PSU.
 If multiple PSUs are
locked out, remove all
PSUs and reinstall them
one by one to locate the
faulty ones. Then replace
faulty PSUs.
Replace the faulty PSU.
Measure
If the green indicators on
PSUs are steady on, the
power input to the system
is normal. Otherwise,
rectify power grid faults.
Reinstall the monitoring
module. If the fault
persists, replace the
monitoring module.
Energize corresponding
power ports over the
WebUI or network
management system.
Check whether the
connected load is
short-circuited. If yes,
eliminate the short circuit.
View active alarms on the
WebUI and clear them
one by one.
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