Transferring From Maintenance Bypass Mode To Normal Mode; Performing Epo - Huawei UPS5000-E FM Series User Manual

UPS5000-E-(30 kVA-120 kVA)-FM
User Manual
5.8 Transferring from Maintenance Bypass Mode to
Normal Mode
Context
Before transferring the UPS from maintenance bypass mode to normal mode,
ensure that the bypass input and output are normal.
Procedure
Step 1 Open the maintenance bypass switch.
The Maint. breaker misoperation and Maint. Breaker closed alarms disappear
from the alarm list. Check whether the UPS works in bypass mode by viewing the
system running status diagram on the LCD or WebUI.
Step 2 Start UPS inverters.
----End

5.9 Performing EPO

● After the EPO button is turned on, the UPS supplies no power and the loads
● In maintenance bypass mode, the UPS continues to supply power even after
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.
Figure 5-17 EPO ports
Issue 02 (2020-11-10)
NO TICE
NO TE
If the stopper or barrier of the maintenance bypass switch is configured, reinstall the
stopper or barrier on the maintenance bypass switch.
NO TICE
shut down.
the EPO button is turned on.
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