Component Replacement; Replacing A Door Status Sensor - Huawei FusionModule500 User Manual

FusionModule500 Smart Mini Data Center
User Manual (ECC800e)
Symptom
Table 4-7 Common faults and troubleshooting for the monitoring module
No.
1
2
3

4.5 Component Replacement

4.5.1 Replacing a Door Status Sensor

Prerequisites


Issue 07 (2019-12-20)
Symptom
The run indicator (green)
is off.
RJ45 power output
indicators turn off
(involved ports:
AI/DI1–AI/DI6,
COM2–COM3, and
DO1–DO2).
The alm indicator (red) is
steady on.
Tools: Phillips screwdriver, insulation tape, step ladder.
Materials: A spare door status sensor of the same model is available and functional.
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
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 Maintenance
Measure
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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