Performing Epo; Commissioning A Dual-Bus System - Huawei UPS5000-E User Manual

UPS5000-E-(400 kVA-800 kVA)
User Manual (50 kVA Power Modules)
Procedure
Step 1 Choose Common Functions > Paral. Inv. OFF on the LCD. The system transfers to
bypass mode.
Step 2 Turn off the general output switch (general load switch) and the external output
power switch, battery switch, external mains input power switch, and then
external bypass input power switch for each UPS.
Step 3 Turn off the internal bypass input switch, output switch, and then mains input
switch of each UPS.
----End

5.4 Performing EPO

Procedure
Step 1 Press the EPO switches connected to the dry contact cards on all UPSs one by one
or press the general EPO switch.
----End

5.5 Commissioning a Dual-Bus System

Context
The dual-bus system consists of one master BSC system and one slave BSC system.
You can specify them (one UPS system cannot be set to both master and slave
BSC systems) during startup, and change the settings under the guidance of
maintenance engineers when needed. Set the master and slave BSC systems to
master and slave modes respectively.
Procedure
Step 1 Connect BSC cables.
Issue 17 (2023-07-10)
NO TE
● Perform only step 1 if you only need to shut down the UPS inverters to switch the
system to bypass mode without powering off loads.
● If you need to power off the entire UPS system, perform all the preceding steps.
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