Huawei FusionModule5000 Maintenance Guide

FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
4 Troubleshooting
Issue 01 (2019-03-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
94
4.1.2 Integrated UPS Troubleshooting
To restore battery discharge after batteries reach EOD, use one of the following methods:

Switch to another battery string. Ensure that each battery has a voltage greater than the
EOD voltage and 11.3 V.

Restore the mains power supply to start the inverter. Turn on the battery switch and charge
batteries until each battery has a voltage greater than the EOD voltage and 11.3 V.
For details about how to rectify common faults, see Table 4-1. If any faults that cannot be
located or solved are met, or any other unmentioned faults occur, see 3.1.2 Integrated UPS
Alarm Reference and contact Huawei technical support.
For details about how to rectify ATS faults, see the delivered manual.
Table 4-1 Troubleshooting
Symptom
Possible Cause
Measure
The rectifier cannot work,
and the bus voltage is not
boosted.
The mains voltage exceeds
the upper threshold 280 V or
is less than the lower
threshold 80 V.
Check whether the mains
voltage exceeds the
threshold. If yes, contact the
electric power company.
PFC soft-startup fails.
Replace the power module.
The power module is faulty.
Replace the power module.
The buzzer buzzes, the Fault
indicator is on, the inverter
is faulty, and the UPS
transfers to bypass mode.
The UPS is overloaded or
short-circuited.
Reduce load or rectify short
circuits.
Inverter overtemperature
occurs.
Install more air conditioners
or ventilation devices to
ensure normal temperatures
inside the equipment room.
The power module is faulty.
Replace the power module.
The buzzer buzzes, the Fault
indicator is on, and the
charging function fails.
The charger fails.
Replace the power module.
The charger experiences
overcurrent.
Replace the power module.
The charger experiences
undervoltage.
Check whether the
configured number of
batteries is correct. If the
value is correct but the
alarm persists, replace the
power module.
When the mains is normal,
the UPS works in bypass
Set the UPS working mode
to ECO mode.
Set the working mode
correctly.

Huawei FusionModule5000 Specifications

General

Brand	Huawei
Model	FusionModule5000
Category	Wireless Router
Language	English