NO TE
After you shut down the inverter, the Bypass mode alarm is displayed on the LCD.
Figure 4-5 Abnormal bypass
NO TE
If you need to shut down the inverter and transfer the UPS to bypass mode, check that
the UPS has not generated an alarm and perform "Step 1".
●
On the WebUI
Choose Monitoring > UPS System > Running Control, and click Inv. OFF.
Step 2 After you shut down the inverter, turn off the output switch or external output
power distribution switch in the UPS output PDC.
Step 3 Turn off the battery string switch. If there are multiple battery strings, turn off the
general switch between battery strings and the UPS and then the switch for each
battery string.
Step 4 Turn off the external input switches and UPS internal switches in the following
sequence:
1. Turn off the internal mains input switch, bypass input switch, and output
switch of the UPS.
2. Turn off the upstream mains input and bypass input switches for the UPS.
NO TE
● If the inverter needs to shut down to transfer the UPS to bypass mode, check that the
UPS has not generated an alarm and perform
.
● If you need to shut down the UPS, perform all of the preceding steps.
----End
4.3 Cold-Starting the UPS Using Batteries
Lead-Acid Battery Cold Start
1. Ensure that batteries have been connected properly. Use a multimeter to
check that the absolute voltages of positive and negative battery strings are
UPS5000-E-(30 kVA–120 kVA)-FM
User Manual
4 Operations
Issue 03 (2022-01-30)
Copyright © Huawei Technologies Co., Ltd.
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