Huawei UPS5000-E-FM User Manual page 120

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UPS5000-E-(30 kVA-120 kVA)-FM
User Manual
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.
2.
Issue 05 (2023-07-10)
Figure 4-9 Normal bypass
After you shut down the inverter, the UPS supplies no power if the bypass is
abnormal, which causes a power failure for the loads.
Figure 4-10 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.
Turn off the internal mains input switch, bypass input switch, and output
switch of the UPS.
Turn off the upstream mains input and bypass input switches for the UPS.
Copyright © Huawei Digital Power Technologies Co., Ltd.
4 Single UPS Commissioning
112

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