UPS5000-E-(360 kVA-480 kVA)
User Manual (40 kVA Power Modules)
5 Operations
Issue 07 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
175
Figure 5-35
EPO ports
After you press the EPO button, the
EPO
and
No power supplied
alarms are displayed on the
LCD.
5.1.10 Clearing the EPO State
Procedure
Step 1
Clear the EPO state. Ensure that the EPO button connected to the dry contact is not in the
EPO state.
Step 2
Clear the EPO alarm.
On the LCD
On the LCD, choose
System Info
>
Alarms
and tap
Clear Faults
. In the displayed
dialog box, tap
Yes
. The EPO alarm is cleared successfully.
On the WebUI
Choose
Monitoring
>
Control
>
System Commands and Tests
and click
Clear Fault
.
The EPO alarm is cleared successfully.
Step 3
Check that the EPO alarm is cleared by viewing active alarms. If the system bypass input is
normal, the UPS transfers to bypass mode.
Viewing active alarms on the LCD
Choose
System Info
>
Alarms > Active Alarms
to check that the EPO alarm is cleared.
Viewing active alarms on the WebUI
Choose
Monitoring
>
Active Alarms
to check that the EPO alarm is cleared.
Step 4
Start the inverter.
----End
5.2 Setting Hibernation Mode
When the load power is small and stable, the inverters in some power modules shut down so
that these power modules can enter hibernation state and the other power modules bear all the
load power. This improves the system efficiency, reduces power consumption, and increases
the power module service life. Use the LCD or WebUI to set hibernation mode.