UPS5000-E-(25 kVA-75 kVA)-SM
User Manual (Half Height)
5 Operations
Issue 03 (2019-12-13)
Copyright © Huawei Technologies Co., Ltd.
146
On the WebUI, EPO can be performed only when
Monitoring > Param. Settings >
System Settings> EPO detection
is set to
Enable
. Otherwise, EPO function is not
available.
EPO detection
is set to
Disable
by default.
If the UPS is in normal mode, the UPS provides no output after you press the EPO switch.
The loads power off.
If the UPS is in maintenance bypass mode, the UPS still supplies power after you press the
EPO switch.
Procedure
Step 1
Turn on the external EPO switch that connects to the dry contact. The UPS enters the EPO
state. EPO alarms are displayed on the LCD and WebUI.
Figure 5-19
EPO alarm on the LCD
Figure 5-20
EPO alarm on the WebUI
----End
5.1.10 Clearing the EPO State
Procedure
Step 1
Turn off the external EPO switch that connects to the dry contact. Ensure that the EPO switch
is not in the EPO state.
Step 2
Clear the EPO alarms in the system.
LCD
On the main screen, choose
Alarms
>
Clear Faults
. After the dialog box is displayed,
press
and the EPO alarm can be cleared, as shown in