Huawei FusionModule500 User Manual page 268

FusionModule500 Smart Mini Data Center
User Manual
Symptom
The surge protection
function fails.
The general switch is
ON, the LCD displays no
information, and the
system does not perform
self-check.
The mains is normal, but
the AC input indicator is
off. The UPS works in
battery mode.
The UPS fails to
communicate.
The UPS does not report
a fault but has no output
voltage.
Issue 02 (2020-12-25)
Possible Cause
● The SPD circuit
breaker is OFF.
● The SPD ground cable
is not connected.
● The surge protection
module is abnormal.
The SPD window is
red.
The input power supply
is not connected.
The input voltage is less
than the lower threshold
or greater than the
upper threshold.
The UPS mains switch is
OFF.
The input cable is not
properly connected.
● The UPS
communications cable
is not properly
connected.
● The UPS parallel cable
is not properly
connected.
● The UPS is deleted on
the ECC800-Pro
WebUI.
The output cable is not
properly connected.
Copyright © Huawei Technologies Co., Ltd.
6 O&M
Measure
● Check that the SPD
circuit breaker is
turned on. The power
distribution subrack
(monitoring type) will
prompt an alarm
indicating that the
SPD circuit breaker is
not turned on.
● Check whether the
SPD ground cable is
properly connected.
● Replace the surge
protection module.
For details, see 6.4.2.1
Replacing a Surge
Protection Module.
Check the UPS input
power cable connection.
Use a voltmeter to check
whether the UPS input
voltage meets
requirements.
Turn on the UPS mains
switch.
Check the UPS input
power cable connection.
● Reconnect the UPS
communications
cable.
● Reconnect the UPS
parallel cable.
● Remove the network
cable from the MON1
port on the UPS,
reinstall the cable,
and add the UPS on
the ECC800-Pro
WebUI.
Check the output power
cable connection.
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