Huawei ECC800-Pro User Manual page 258

ECC800 Data Center Controller
User Manual (for ECC800-Pro)
Symptom
The ALM indicator (red)
is steady on.
Table 7-4 Common faults and troubleshooting for the main control module
Symptom
The RUN indicator (green)
is off.
The RUN indicator (green)
is blinking at 5 Hz.
RJ45 power output
indicators turn off
(involved ports: AIDI_1 -
AIDI_5, COM1-COM4, and
DO).
The ALM indicator (red) is
steady on.
Issue 02 (2020-09-07)
Possible Cause
Communication with the
main control module is
interrupted.
Output overvoltage
protection is triggered.
There is no output due
to a PSU fault.
Possible Cause
There is no AC input.
The main control
module is faulty or not
securely installed.
The main control
module does not
register with the
NetEco.
The corresponding
power ports have no
output.
The corresponding
power ports are short-
circuited.
An alarm is generated.
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7 Maintenance
Measure
2. If the fault persists,
replace the ECC800-
Pro subrack.
If the 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.
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 main
control module. If the
fault persists, replace the
main control module.
Register the main control
module with the NetEco.
Energize corresponding
power ports over the
WebUI or NMS.
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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