Huawei FusionModule800 Maintenance Manual page 26

FusionModule800 Smart Small Data Center
Maintenance Guide
Symptom
The system does not
perform self-tests.
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
faults, but has no output
voltage.
The UPS does not start after
you press
The mains indicator is off.
The battery discharge time
is obviously less than the
standard time.
Abnormal noise or smell is
generated in the UPS
cabinet.
Issue 02 (2016-11-15)
Possible Cause
The input voltage is less
than the lower threshold or
greater than the upper
threshold.
The mains switch is OFF.
The input power cable is not
securely connected.

The UPS
communications cable is
not securely connected.

The UPS parallel cable is
not securely connected.

The UPS is deleted on
the ECC800 WebUI.
The output power cable is
not securely connected.
is not pressed long
. enough.
The UPS is overloaded.
The mains voltage or
frequency exceeds the UPS
input range.
Batteries are not fully
charged.
The battery performance
deteriorates.
The UPS is faulty.
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4 Troubleshooting
Measure
Use a voltmeter to check
that the UPS input voltage
meets specifications.
Turn on the mains switch.
Check the UPS input power
cable connection.

Reconnect the UPS
communications cable.

Reconnect the UPS
parallel cable.

Remove the Modbus
card from the UPS, and
reinstall it in the
corresponding slot in the
UPS. Add the UPS on
the ECC800 WebUI.
Check the output power
cable connection.
Press for more than 5
seconds until you hear a
beep sound.
Shut down all loads, and
restart the UPS.
Use a multimeter to verify
that the input voltage and
frequency meet
specifications.
Charge batteries for more
than 8 hours when the mains
is normal. Test the discharge
time again.
Contact your local Huawei
technical support to replace
batteries.
Shut down the UPS and cut
off the power input
immediately. Contact your
local Huawei technical
support.
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