9
5
Powering On and Starting the UPS
2. After verifying the installation, reinstall all 
the covers.
3. (Remove the paper protective film from the 
sealing putty.) After routing cables and 
verifying cable connections, seal the gap 
between cables and the cabinet using 
sealing putty.
Dustproof cover 
4. Do not remove the dustproof cover before 
power-on to prevent dust inside the UPS.
Powering On the UPS
5.1
Close the upstream bypass and mains input switches.
After the UPS is powered on, initialization begins. The MDU displays the Huawei logo and an 
initialization progress bar.
1. Before powering on the UPS, ensure that the UPS has passed all check items in the UPS5000 
Commissioning and Acceptance Report and Chapter 4.
2. Measure the voltage and frequency of the UPS upstream input switch. The line voltage range is 
138–485 V AC, and the frequency range is 40–70 Hz.