Step 2 Choose logs that have been queried from the Log drop-down list box, and click
Export.
----End
7.8 Transferring to Maintenance Bypass Mode
NO TICE
● You are advised to install a lock on the maintenance bypass switch.
● Strictly observe the following procedure to transfer the UPS to maintenance
bypass mode. Otherwise, loads may power off.
● In maintenance bypass mode, the mains supplies power to the loads directly
over the maintenance bypass. If the mains is abnormal, the loads may power
off.
Step 1 Ensure that the status signal cable of the maintenance bypass switch for external
power distribution is connected to MT/0V. Choose System Info > Settings > Dry
Contact Set and set PDC maintenance breaker [MT] to Enable.
Figure 7-21 Maintenance bypass signal port (MT)
Step 2 Shut down the inverter. Choose Common Functions > Inv. OFF. After the inverter
shuts down, the UPS transfers to bypass mode, and the Bypass mode alarm is
displayed on the LCD.
Step 3 Turn on the maintenance bypass switch for external power distribution. Then, the
Maint. breaker closed and Bypass mode alarms are displayed on the LCD.
----End
7.9 Transferring from Maintenance Bypass Mode to
Inverter Mode
NO TICE
Before you transfer the UPS from the bypass mode to inverter mode, ensure that
the bypass input is normal.
UPS5000-H-(1200 kVA-1600 kVA)
User Manual (100 kVA Power Modules)
7 Single UPS Commissioning
Issue 05 (2021-10-13)
Copyright © Huawei Technologies Co., Ltd.
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