UPS5000-E-(25 kVA-75 kVA)-BF
User Manual
5 Operations
Issue 07 (2019-12-13)
Copyright © Huawei Technologies Co., Ltd.
173
Figure 5-9
Starting the inverter
If the power module receives a startup command when it cannot be started, the startup command will be
kept for 1 minute. If the startup command is not cleared within 1 minute (for example, other faults occur
on the module, or you perform shutdown or rectify faults) and the module can be started, the module
responds to the startup command.
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5.1.3 Powering On Loads
Context
After the inverter starts, the UPS works in normal mode. The Bypass mode alarm disappears.
Procedure
Step 1
After confirming that the battery strings are properly connected, close the battery string input
circuit breaker. If there are multiple battery cabinets, close the battery switch inside the UPS
cabinet, and then close the battery switch of external battery strings. The
No battery
alarm
disappears from the MDU.
Step 2
Close the UPS downstream output switch to supply power to the loads.
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5.2 Shutting Down and Powering Off the UPS
Context
After you shut down the inverter, if the bypass is normal, the UPS transfers to bypass mode; if
the bypass is abnormal, the UPS supplies no power. Before you shut down the UPS, ensure
that all loads have shut down.