UPS5000-E-(350 kVA-800 kVA)
User Manual (50 kVA Power Modules)
5 Operations
Issue 05 (2018-01-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
261
5.8 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
Open the maintenance bypass switch.
Turn the maintenance bypass switch from the ON position to the OFF position, as shown in
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.
Figure 5-30
Opening the maintenance bypass switch (400 kVA UPS in full configuration)