Transferring From Maintenance Bypass Mode To Normal Mode; Performing Epo - Huawei UPS5000-A-200K-ST User Manual

UPS5000-A-(200 kVA-800 kVA)
User Manual
4.9 Transferring from Maintenance Bypass Mode to
Normal Mode
Context
Before you transfer the UPS from maintenance bypass mode to normal mode,
ensure that the bypass input and output are normal.
Procedure
Step 1 Turn off the maintenance bypass switch.
Turn the maintenance bypass switch from the ON position to the OFF position.
The Maint. breaker closed alarm disappears 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 the inverters.
----End

4.10 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 4-23 EPO ports
Issue 05 (2020-04-27)
NO TICE
NO TICE
shut down.
the EPO button is turned on.
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