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UPS5000-A-30 kVA, 40 kVA and 80 kVA
User Manual
● If the UPS is faulty, alarm information is displayed on the LCD. Clear critical
● Do not clear alarms by reseating power units or the bypass unit.
● Remove a faulty power unit or bypass unit after it is confirmed that the unit
● After a UPS finishes troubleshooting and is started, if the LCD continues
● When batteries reach EOD, the battery switch in the BCB box trips if the BCB
● To restore battery discharge after batteries reach EOD, use one of the following
For details about how to rectify common faults, see
unmentioned faults occur, see the alarm list chapter, or contact Huawei technical
support.
Issue 13 (2022-01-19)
CA UTION
alarms before powering on the UPS again. Otherwise, the fault scope expands
or the UPS is damaged.
needs replacing. After removing the unit, do not insert it into the UPS again.
NO TICE
displaying alarm information, choose System Info > Alarms > Clear Faults to
clear the alarm and then start the inverter.
box is configured. To restore battery discharge, close the battery switch in the
BCB box (if any) first.
methods: 1. Switch to another battery string. Ensure that each battery has a
voltage greater than the EOD voltage and 11.3 V/cell. 2. Restore the mains
power supply to start the inverter. Close the battery switch and charge batteries
until each battery has a voltage greater than the EOD voltage and 11.3 V/cell.
Copyright © Huawei Technologies Co., Ltd.
7
Troubleshooting
Table
7 Troubleshooting
7-1. If any
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