Huawei UPS5000-H Series - Troubleshooting

9 Troubleshooting
CA UTION
● If the UPS is faulty, alarm information is displayed on the LCD. The UPS can be
powered on only after critical alarms are handled. Failing to do so may escalate
faults or damage the equipment.
● Do not clear alarms by reseating modules.
● Remove a faulty module after
conrming that it needs to be replaced. After
removing the module, do not insert it into the UPS again.
NO TICE
● After a UPS is troubleshooted and started, if the LCD continues displaying
alarm information, choose System Info > Alarms > Clear Faults to clear the
alarm and then start the inverter.
● When batteries reach EOD, the battery switch in the BCB box trips if the BCB
box is
congured. To restore battery discharge, turn on the battery switch in the
BCB box.
● To restore battery discharge after batteries reach EOD, use either of the
following 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. Turn on the battery switch and charge
batteries until each battery has a voltage greater than the EOD voltage and
11.3 V/cell.
For details about how to rectify common faults, see Table 9-1. If any
unmentioned faults occur, see the alarm list or contact Huawei technical support.
UPS5000-H-(400 kVA-600 kVA)
User Manual (100 kVA Power Module) 9 Troubleshooting
Issue 01 (2020-11-30) Copyright © Huawei Technologies Co., Ltd. 95