Performing Epo; Clearing The Epo State - Huawei UPS5000-A-500 kVA User Manual

UPS5000-A-500 kVA
User Manual (e-shelter)
Step 2 Start the inverters.
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5.9 Performing EPO

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Press the external EPO switch that connects to the dry contact card or remove the 4-pin
terminal on the EPO port of the dry contact card of the bypass unit.
Figure 5-20 EPO ports
After you press the EPO button, the EPO and No power supplied alarms are displayed on the
LCD.

5.10 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.
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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.
Issue 02 (2020-01-10)
After the EPO button is turned on, the UPS supplies no power and the loads shut down.
In maintenance bypass mode, the UPS continues to supply power even after the EPO
button is turned on.
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.
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